{"title":"Optics - Plano-Concave Lenses","description":"\u003cp\u003eBrowse 116+ lenses from WaveQuanta's catalog. Part of our precision optical components and lenses range. Detailed specifications, datasheets, and 3D models available for each product. Request a quote today.\u003c\/p\u003e","products":[{"product_id":"plano-concave-lens-n-sf11-uncoated-420-nm-2-3-μm-mcc30303","title":"Plano-Concave Lens, N-SF11, Uncoated: 420 nm-2.3 μm MCC30303","description":"\u003ch2\u003ePlano-Concave Lens, N-SF11, Uncoated: 420 nm-2.3 μm — Model MCC30303\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 420 nm-2.3 μm, focal length -15.0 mm, Ø12.7 mm, substrate N-SF11.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 420 nm-2.3 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eLow Abbe Number, High Dispersion\u003c\/li\u003e\n\u003cli\u003eApplications: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or expanding (or reducing) the image. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nBecause N-SF11 has a low Abbe number, LBTEK chooses to use N-SF11 to manufacture lenses with smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic and alkaline) environments. Apart from N-SF11 plano-concave lenses, LBTEK also offers plano-concave lenses made of N-BK7, UV fused silica, and calcium fluoride. N-BK7 is the most commonly used material for high-quality optical components, widely applied in visible and near-infrared applications. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low thermal expansion coefficient, while calcium fluoride has an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo fine processing and strict quality control to ensure that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-SF11, Uncoated: 420 nm-2.3 μm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 420 nm-2.3 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003cli\u003ePre-installed mechanical housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have negative focal lengths and are commonly used in applications such as imaging or beam collimation. Since N-SF11 has a lower Abbe number, LBTEK chooses to use RoHS-certified N-SF11 to manufacture lenses with various smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic or alkaline) environments. All circular lenses from LBTEK come pre-installed with standard lens tubes or lens mounting adapters. The surfaces of these mechanical components are engraved with product model, type, diameter, and focal length, allowing users to quickly identify lens parameters.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517939269786,"sku":"MCC30303","price":55.59,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-SF11_EF_BC_8C_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A420_20nm-2.3_20_CE_BCm-FnDhTzPoUzMg3ecZrvac6m8Ko2Yf.jpg?v=1772672165"},{"product_id":"plano-concave-lens-n-sf11-uncoated-420-nm-2-3-μm-mcc30607","title":"Plano-Concave Lens, N-SF11, Uncoated: 420 nm-2.3 μm MCC30607","description":"\u003ch2\u003ePlano-Concave Lens, N-SF11, Uncoated: 420 nm-2.3 μm — Model MCC30607\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 420 nm-2.3 μm, focal length -30.0 mm, Ø25.4 mm, substrate N-SF11.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 420 nm-2.3 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eLow Abbe Number, High Dispersion\u003c\/li\u003e\n\u003cli\u003eApplications: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or expanding (or reducing) the image. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nBecause N-SF11 has a low Abbe number, LBTEK chooses to use N-SF11 to manufacture lenses with smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic and alkaline) environments. Apart from N-SF11 plano-concave lenses, LBTEK also offers plano-concave lenses made of N-BK7, UV fused silica, and calcium fluoride. N-BK7 is the most commonly used material for high-quality optical components, widely applied in visible and near-infrared applications. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low thermal expansion coefficient, while calcium fluoride has an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo fine processing and strict quality control to ensure that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-SF11, Uncoated: 420 nm-2.3 μm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 420 nm-2.3 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003cli\u003ePre-installed mechanical housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have negative focal lengths and are commonly used in applications such as imaging or beam collimation. Since N-SF11 has a lower Abbe number, LBTEK chooses to use RoHS-certified N-SF11 to manufacture lenses with various smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic or alkaline) environments. All circular lenses from LBTEK come pre-installed with standard lens tubes or lens mounting adapters. The surfaces of these mechanical components are engraved with product model, type, diameter, and focal length, allowing users to quickly identify lens parameters.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517939335322,"sku":"MCC30607","price":58.2,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-SF11_EF_BC_8C_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A420_20nm-2.3_20_CE_BCm-FnDhTzPoUzMg3ecZrvac6m8Ko2Yf_65a1c95e-3d19-47e7-a26f-88bf6032f1ee.jpg?v=1772672170"},{"product_id":"plano-concave-lens-n-sf11-uncoated-420-nm-2-3-μm-cc30607","title":"Plano-Concave Lens, N-SF11, Uncoated: 420 nm-2.3 μm, Unmounted CC30607","description":"\u003ch2\u003ePlano-Concave Lens, N-SF11, Uncoated: 420 nm-2.3 μm, Unmounted — Model CC30607\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 420 nm-2.3 μm, focal length -30.0 mm, Ø25.4 mm, substrate N-SF11.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 420 nm-2.3 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eLow Abbe Number, High Dispersion\u003c\/li\u003e\n\u003cli\u003eApplications: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or expanding (or reducing) the image. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nBecause N-SF11 has a low Abbe number, LBTEK chooses to use N-SF11 to manufacture lenses with smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic and alkaline) environments. Apart from N-SF11 plano-concave lenses, LBTEK also offers plano-concave lenses made of N-BK7, UV fused silica, and calcium fluoride. N-BK7 is the most commonly used material for high-quality optical components, widely applied in visible and near-infrared applications. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low thermal expansion coefficient, while calcium fluoride has an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo fine processing and strict quality control to ensure that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-SF11, Uncoated: 420 nm-2.3 μm, Unmounted\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 420 nm-2.3 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have a negative focal length and are commonly used in applications such as imaging or beam collimation. Since N-SF11 has a lower Abbe number, LBTEK chooses to use RoHS-certified N-SF11 to manufacture lenses with various smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic or alkaline) environments. All circular lenses from LBTEK can be mounted in LBTEK standard lens tubes, fixed lens holders, and various coaxial mounting plates. Customers can select the optimal mounting method based on different application scenarios.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517939433626,"sku":"CC30607","price":41.09,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/2-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-SF11_EF_BC_8C_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A420_20nm-2.3_20_CE_BCm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FleJOzJWgeePxHBYZEGsExF33.jpg?v=1772672175"},{"product_id":"plano-concave-lens-n-sf11-uncoated-420-nm-2-3-μm-cc30303","title":"Plano-Concave Lens, N-SF11, Uncoated: 420 nm-2.3 μm, Unmounted CC30303","description":"\u003ch2\u003ePlano-Concave Lens, N-SF11, Uncoated: 420 nm-2.3 μm, Unmounted — Model CC30303\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 420 nm-2.3 μm, focal length -15.0 mm, Ø12.7 mm, substrate N-SF11.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 420 nm-2.3 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eLow Abbe Number, High Dispersion\u003c\/li\u003e\n\u003cli\u003eApplications: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or expanding (or reducing) the image. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nBecause N-SF11 has a low Abbe number, LBTEK chooses to use N-SF11 to manufacture lenses with smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic and alkaline) environments. Apart from N-SF11 plano-concave lenses, LBTEK also offers plano-concave lenses made of N-BK7, UV fused silica, and calcium fluoride. N-BK7 is the most commonly used material for high-quality optical components, widely applied in visible and near-infrared applications. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low thermal expansion coefficient, while calcium fluoride has an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo fine processing and strict quality control to ensure that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-SF11, Uncoated: 420 nm-2.3 μm, Unmounted\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 420 nm-2.3 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have a negative focal length and are commonly used in applications such as imaging or beam collimation. Since N-SF11 has a lower Abbe number, LBTEK chooses to use RoHS-certified N-SF11 to manufacture lenses with various smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic or alkaline) environments. All circular lenses from LBTEK can be mounted in LBTEK standard lens tubes, fixed lens holders, and various coaxial mounting plates. Customers can select the optimal mounting method based on different application scenarios.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517939531930,"sku":"CC30303","price":41.84,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/2-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-SF11_EF_BC_8C_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A420_20nm-2.3_20_CE_BCm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FleJOzJWgeePxHBYZEGsExF33_2ac635d6-4772-44ff-ba4c-6dfc18ecf2d4.jpg?v=1772672180"},{"product_id":"plano-concave-lens-n-sf11-uncoated-420-nm-2-3-μm-cc30025","title":"Plano-Concave Lens, N-SF11, Uncoated: 420 nm-2.3 μm, Unmounted CC30025","description":"\u003ch2\u003ePlano-Concave Lens, N-SF11, Uncoated: 420 nm-2.3 μm, Unmounted — Model CC30025\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 420 nm-2.3 μm, focal length -6.0 mm, Ø6.0 mm, substrate N-SF11.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 420 nm-2.3 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eLow Abbe Number, High Dispersion\u003c\/li\u003e\n\u003cli\u003eApplications: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or expanding (or reducing) the image. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nBecause N-SF11 has a low Abbe number, LBTEK chooses to use N-SF11 to manufacture lenses with smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic and alkaline) environments. Apart from N-SF11 plano-concave lenses, LBTEK also offers plano-concave lenses made of N-BK7, UV fused silica, and calcium fluoride. N-BK7 is the most commonly used material for high-quality optical components, widely applied in visible and near-infrared applications. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low thermal expansion coefficient, while calcium fluoride has an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo fine processing and strict quality control to ensure that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-SF11, Uncoated: 420 nm-2.3 μm, Unmounted\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 420 nm-2.3 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have a negative focal length and are commonly used in applications such as imaging or beam collimation. Since N-SF11 has a lower Abbe number, LBTEK chooses to use RoHS-certified N-SF11 to manufacture lenses with various smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic or alkaline) environments. All circular lenses from LBTEK can be mounted in LBTEK standard lens tubes, fixed lens holders, and various coaxial mounting plates. Customers can select the optimal mounting method based on different application scenarios.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517939630234,"sku":"CC30025","price":33.65,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/2-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-SF11_EF_BC_8C_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A420_20nm-2.3_20_CE_BCm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FleJOzJWgeePxHBYZEGsExF33_109202a4-1f8e-412c-a1b9-24578b3fa9f6.jpg?v=1772672185"},{"product_id":"plano-concave-lens-uv-fused-silica-ar-coating-700-nm-1100-nm-mcc20305-b","title":"Plano-Concave lens, UVFS, AR Coating: 700 nm-1100 nm MCC20305-B","description":"\u003ch2\u003ePlano-Concave lens, UVFS, AR Coating: 700 nm-1100 nm — Model MCC20305-B\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 700 nm-1100 nm, focal length -25.0 mm, Ø12.7 mm, substrate UV Fused Silica.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: UV Fused Silica\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coated)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Plano-Concave Lens has one concave surface and one flat surface, featuring a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) focal length, or expanding (or reducing) images. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nLBTEK chooses UV fused silica (UVFS) as the substrate material for lenses because UVFS exhibits high transmittance in the deep ultraviolet spectrum and produces almost no laser-induced fluorescence. Additionally, UV fused silica offers better homogeneity and a lower coefficient of thermal expansion compared to N-BK7. Besides UVFS plano-concave lenses, LBTEK also provides plano-concave lenses made of N-BK7, N-SF11, and calcium fluoride. N-BK7 is the most commonly used material for high-quality optical components, widely applied in visible and near-infrared applications. N-SF11 is characterized by its low Abbe number and high dispersion, while calcium fluoride boasts an extremely high damage threshold and chemical inertness.\nLBTEK offers uncoated UVFS plano-concave lenses as well as lenses with four types of AR coatings: 245-400nm, 400-700nm, 700-1100nm, and 1100-1650nm. All our lenses undergo precision machining and strict quality control to ensure that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave lens, UVFS, AR Coating: 700 nm-1100 nm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: UVFS\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003cli\u003ePre-installed Mechanical Housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have a negative focal length and are commonly used for image reduction or beam divergence. Since UVFS has a low Abbe number, LBTEK selects UV fused silica as the lens substrate material because UVFS exhibits high transmittance in the deep ultraviolet spectrum and generates almost no laser-induced fluorescence. Additionally, UV fused silica offers better homogeneity and a lower coefficient of thermal expansion compared to N-BK7. All circular lenses from LBTEK come pre-installed with standard lens tubes or lens mounting adapters. These mechanical components are engraved with product model, type, diameter, and focal length for easy identification of lens parameters by users.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517939761306,"sku":"MCC20305-B","price":145.41,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CUVFS_EF_BC_8C_E5_A2_9E_E9_80_8F_E8_86_9C_EF_BC_9A700_20nm-1100_20nm-FlOvjHpGBCvlkOnGYFS4IGxOG5gN.jpg?v=1772672190"},{"product_id":"plano-concave-lens-uv-fused-silica-ar-coating-700-nm-1100-nm-cc20305-b","title":"Plano-Concave Lens, UVFS, AR Coating: 700 nm-1100 nm, Unmounted CC20305-B","description":"\u003ch2\u003ePlano-Concave Lens, UVFS, AR Coating: 700 nm-1100 nm, Unmounted — Model CC20305-B\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 700 nm-1100 nm, focal length -25.0 mm, Ø12.7 mm, substrate UV Fused Silica.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: UV Fused Silica\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coated)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Plano-Concave Lens has one concave surface and one flat surface, featuring a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) focal length, or expanding (or reducing) images. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nLBTEK chooses UV fused silica (UVFS) as the substrate material for lenses because UVFS exhibits high transmittance in the deep ultraviolet spectrum and produces almost no laser-induced fluorescence. Additionally, UV fused silica offers better homogeneity and a lower coefficient of thermal expansion compared to N-BK7. Besides UVFS plano-concave lenses, LBTEK also provides plano-concave lenses made of N-BK7, N-SF11, and calcium fluoride. N-BK7 is the most commonly used material for high-quality optical components, widely applied in visible and near-infrared applications. N-SF11 is characterized by its low Abbe number and high dispersion, while calcium fluoride boasts an extremely high damage threshold and chemical inertness.\nLBTEK offers uncoated UVFS plano-concave lenses as well as lenses with four types of AR coatings: 245-400nm, 400-700nm, 700-1100nm, and 1100-1650nm. All our lenses undergo precision machining and strict quality control to ensure that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, UVFS, AR Coating: 700 nm-1100 nm, Unmounted\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: UVFS\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have a negative focal length and are commonly used for image reduction or light divergence. Since UVFS has a lower Abbe number, LBTEK chooses UV fused silica as the lens substrate material because UVFS exhibits high transmittance in the deep ultraviolet spectrum and produces almost no laser-induced fluorescence. Additionally, UV fused silica offers better homogeneity and a lower coefficient of thermal expansion compared to N-BK7. All circular lenses from LBTEK can be mounted in LBTEK standard lens tubes, fixed lens holders, and various coaxial mounting plates. Customers can select the optimal mounting solution for different application scenarios.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517939892378,"sku":"CC20305-B","price":132.02,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/2-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CUVFS_EF_BC_8C_E5_A2_9E_E9_80_8F_E8_86_9C_EF_BC_9A700_20nm-1100_20nm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-Fuk2KfYbcJwH0r33kA38aIXCH02W.jpg?v=1772672196"},{"product_id":"plano-concave-lens-n-bk7-ar-coating-700-nm-1100-nm-mcc10613-b","title":"Plano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm MCC10613-B","description":"\u003ch2\u003ePlano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm — Model MCC10613-B\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 700 nm-1100 nm, focal length -100.0 mm, Ø25.4 mm, substrate N-BK7.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Plano-Concave Lens has one concave surface and one flat surface, featuring a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or enlarging (or reducing) images. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nN-BK7 is the most common lens material, widely used in visible and near-infrared applications. In addition to N-BK7 plano-concave lenses, LBTEK also offers N-SF11, UV fused silica, and calcium fluoride plano-concave lenses. Due to its lower Abbe number, N-SF11 is often used to produce lenses with shorter focal lengths. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low coefficient of thermal expansion, while calcium fluoride boasts an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400 nm-700 nm, 700 nm-1100 nm, and 1100 nm-1650 nm. All our lenses undergo precision machining and strict quality control, ensuring that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003ePre-installed Mechanical Housing\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lens have a negative focal length and are commonly used in applications such as imaging or beam collimation. LBTEK plano-concave lenses are manufactured using N-BK7 glass that complies with RoHS standards. N-BK7 is the most commonly used material for high-quality optical components, primarily applied in visible and near-infrared fields. All circular lenses from LBTEK come pre-installed with standard lens tubes or lens mounting adapters. These mechanical components are engraved with product model, type, diameter, and focal length for easy identification of lens parameters by users.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517939990682,"sku":"MCC10613-B","price":55.78,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-BK7_EF_BC_8C_E5_A2_9E_E9_80_8F_E8_86_9C_EF_BC_9A700_20nm-1100_20nm-Fpfb8achFO39iNVzVURhc4lZd6Cs.jpg?v=1772672201"},{"product_id":"plano-concave-lens-n-bk7-ar-coating-700-nm-1100-nm-mcc10612-b","title":"Plano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm MCC10612-B","description":"\u003ch2\u003ePlano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm — Model MCC10612-B\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 700 nm-1100 nm, focal length -75.0 mm, Ø25.4 mm, substrate N-BK7.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Plano-Concave Lens has one concave surface and one flat surface, featuring a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or enlarging (or reducing) images. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nN-BK7 is the most common lens material, widely used in visible and near-infrared applications. In addition to N-BK7 plano-concave lenses, LBTEK also offers N-SF11, UV fused silica, and calcium fluoride plano-concave lenses. Due to its lower Abbe number, N-SF11 is often used to produce lenses with shorter focal lengths. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low coefficient of thermal expansion, while calcium fluoride boasts an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400 nm-700 nm, 700 nm-1100 nm, and 1100 nm-1650 nm. All our lenses undergo precision machining and strict quality control, ensuring that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003ePre-installed Mechanical Housing\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lens have a negative focal length and are commonly used in applications such as imaging or beam collimation. LBTEK plano-concave lenses are manufactured using N-BK7 glass that complies with RoHS standards. N-BK7 is the most commonly used material for high-quality optical components, primarily applied in visible and near-infrared fields. All circular lenses from LBTEK come pre-installed with standard lens tubes or lens mounting adapters. These mechanical components are engraved with product model, type, diameter, and focal length for easy identification of lens parameters by users.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517940121754,"sku":"MCC10612-B","price":55.78,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-BK7_EF_BC_8C_E5_A2_9E_E9_80_8F_E8_86_9C_EF_BC_9A700_20nm-1100_20nm-Fpfb8achFO39iNVzVURhc4lZd6Cs_db65f1be-724e-41f1-8edf-bd8d57ef093d.jpg?v=1772672206"},{"product_id":"plano-concave-lens-n-bk7-ar-coating-700-nm-1100-nm-mcc10610-b","title":"Plano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm MCC10610-B","description":"\u003ch2\u003ePlano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm — Model MCC10610-B\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 700 nm-1100 nm, focal length -50.0 mm, Ø25.4 mm, substrate N-BK7.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Plano-Concave Lens has one concave surface and one flat surface, featuring a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or enlarging (or reducing) images. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nN-BK7 is the most common lens material, widely used in visible and near-infrared applications. In addition to N-BK7 plano-concave lenses, LBTEK also offers N-SF11, UV fused silica, and calcium fluoride plano-concave lenses. Due to its lower Abbe number, N-SF11 is often used to produce lenses with shorter focal lengths. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low coefficient of thermal expansion, while calcium fluoride boasts an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400 nm-700 nm, 700 nm-1100 nm, and 1100 nm-1650 nm. All our lenses undergo precision machining and strict quality control, ensuring that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003ePre-installed Mechanical Housing\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lens have a negative focal length and are commonly used in applications such as imaging or beam collimation. LBTEK plano-concave lenses are manufactured using N-BK7 glass that complies with RoHS standards. N-BK7 is the most commonly used material for high-quality optical components, primarily applied in visible and near-infrared fields. All circular lenses from LBTEK come pre-installed with standard lens tubes or lens mounting adapters. These mechanical components are engraved with product model, type, diameter, and focal length for easy identification of lens parameters by users.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517940220058,"sku":"MCC10610-B","price":55.78,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-BK7_EF_BC_8C_E5_A2_9E_E9_80_8F_E8_86_9C_EF_BC_9A700_20nm-1100_20nm-Fpfb8achFO39iNVzVURhc4lZd6Cs_14c8c247-8243-4e5f-b8c1-6fcf7a5828f9.jpg?v=1772672211"},{"product_id":"plano-concave-lens-n-bk7-ar-coating-700-nm-1100-nm-mcc10310-b","title":"Plano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm MCC10310-B","description":"\u003ch2\u003ePlano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm — Model MCC10310-B\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 700 nm-1100 nm, focal length -50.0 mm, Ø12.7 mm, substrate N-BK7.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Plano-Concave Lens has one concave surface and one flat surface, featuring a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or enlarging (or reducing) images. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nN-BK7 is the most common lens material, widely used in visible and near-infrared applications. In addition to N-BK7 plano-concave lenses, LBTEK also offers N-SF11, UV fused silica, and calcium fluoride plano-concave lenses. Due to its lower Abbe number, N-SF11 is often used to produce lenses with shorter focal lengths. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low coefficient of thermal expansion, while calcium fluoride boasts an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400 nm-700 nm, 700 nm-1100 nm, and 1100 nm-1650 nm. All our lenses undergo precision machining and strict quality control, ensuring that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003ePre-installed Mechanical Housing\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lens have a negative focal length and are commonly used in applications such as imaging or beam collimation. LBTEK plano-concave lenses are manufactured using N-BK7 glass that complies with RoHS standards. N-BK7 is the most commonly used material for high-quality optical components, primarily applied in visible and near-infrared fields. All circular lenses from LBTEK come pre-installed with standard lens tubes or lens mounting adapters. These mechanical components are engraved with product model, type, diameter, and focal length for easy identification of lens parameters by users.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517940318362,"sku":"MCC10310-B","price":52.44,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-BK7_EF_BC_8C_E5_A2_9E_E9_80_8F_E8_86_9C_EF_BC_9A700_20nm-1100_20nm-Fpfb8achFO39iNVzVURhc4lZd6Cs_4f8c24c9-f80a-49ae-9c76-cbd7af551b35.jpg?v=1772672216"},{"product_id":"plano-concave-lens-n-bk7-ar-coating-700-nm-1100-nm-mcc10307-b","title":"Plano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm MCC10307-B","description":"\u003ch2\u003ePlano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm — Model MCC10307-B\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 700 nm-1100 nm, focal length -30.0 mm, Ø12.7 mm, substrate N-BK7.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Plano-Concave Lens has one concave surface and one flat surface, featuring a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or enlarging (or reducing) images. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nN-BK7 is the most common lens material, widely used in visible and near-infrared applications. In addition to N-BK7 plano-concave lenses, LBTEK also offers N-SF11, UV fused silica, and calcium fluoride plano-concave lenses. Due to its lower Abbe number, N-SF11 is often used to produce lenses with shorter focal lengths. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low coefficient of thermal expansion, while calcium fluoride boasts an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400 nm-700 nm, 700 nm-1100 nm, and 1100 nm-1650 nm. All our lenses undergo precision machining and strict quality control, ensuring that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003ePre-installed Mechanical Housing\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lens have a negative focal length and are commonly used in applications such as imaging or beam collimation. LBTEK plano-concave lenses are manufactured using N-BK7 glass that complies with RoHS standards. N-BK7 is the most commonly used material for high-quality optical components, primarily applied in visible and near-infrared fields. All circular lenses from LBTEK come pre-installed with standard lens tubes or lens mounting adapters. These mechanical components are engraved with product model, type, diameter, and focal length for easy identification of lens parameters by users.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517940383898,"sku":"MCC10307-B","price":51.51,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-BK7_EF_BC_8C_E5_A2_9E_E9_80_8F_E8_86_9C_EF_BC_9A700_20nm-1100_20nm-Fpfb8achFO39iNVzVURhc4lZd6Cs_75846bb2-91a3-4581-8c9a-86c421e61ecc.jpg?v=1772672222"},{"product_id":"plano-concave-lens-n-bk7-ar-coating-700-nm-1100-nm-mcc10305-b","title":"Plano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm MCC10305-B","description":"\u003ch2\u003ePlano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm — Model MCC10305-B\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 700 nm-1100 nm, focal length -25.0 mm, Ø12.7 mm, substrate N-BK7.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Plano-Concave Lens has one concave surface and one flat surface, featuring a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or enlarging (or reducing) images. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nN-BK7 is the most common lens material, widely used in visible and near-infrared applications. In addition to N-BK7 plano-concave lenses, LBTEK also offers N-SF11, UV fused silica, and calcium fluoride plano-concave lenses. Due to its lower Abbe number, N-SF11 is often used to produce lenses with shorter focal lengths. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low coefficient of thermal expansion, while calcium fluoride boasts an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400 nm-700 nm, 700 nm-1100 nm, and 1100 nm-1650 nm. All our lenses undergo precision machining and strict quality control, ensuring that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003ePre-installed Mechanical Housing\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lens have a negative focal length and are commonly used in applications such as imaging or beam collimation. LBTEK plano-concave lenses are manufactured using N-BK7 glass that complies with RoHS standards. N-BK7 is the most commonly used material for high-quality optical components, primarily applied in visible and near-infrared fields. All circular lenses from LBTEK come pre-installed with standard lens tubes or lens mounting adapters. These mechanical components are engraved with product model, type, diameter, and focal length for easy identification of lens parameters by users.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517940514970,"sku":"MCC10305-B","price":51.51,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-BK7_EF_BC_8C_E5_A2_9E_E9_80_8F_E8_86_9C_EF_BC_9A700_20nm-1100_20nm-Fpfb8achFO39iNVzVURhc4lZd6Cs_7aec27d2-e691-49a1-bd43-a1660ece1725.jpg?v=1772672226"},{"product_id":"plano-concave-lens-n-bk7-ar-coating-700-nm-1100-nm-cc10613-b","title":"Plano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm, Unmounted CC10613-B","description":"\u003ch2\u003ePlano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm, Unmounted — Model CC10613-B\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 700 nm-1100 nm, focal length -100.0 mm, Ø25.4 mm, substrate N-BK7.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Plano-Concave Lens has one concave surface and one flat surface, featuring a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or enlarging (or reducing) images. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nN-BK7 is the most common lens material, widely used in visible and near-infrared applications. In addition to N-BK7 plano-concave lenses, LBTEK also offers N-SF11, UV fused silica, and calcium fluoride plano-concave lenses. Due to its lower Abbe number, N-SF11 is often used to produce lenses with shorter focal lengths. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low coefficient of thermal expansion, while calcium fluoride boasts an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400 nm-700 nm, 700 nm-1100 nm, and 1100 nm-1650 nm. All our lenses undergo precision machining and strict quality control, ensuring that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm, Unmounted\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe LBTEK plano-concave lens has a negative focal length and is commonly used in applications such as imaging or beam collimation. LBTEK plano-concave lenses are manufactured using N-BK7 glass that complies with RoHS standards. N-BK7 is the most commonly used material for high-quality optical components, primarily applied in visible and near-infrared fields. All circular lenses from LBTEK can be mounted in LBTEK standard lens tubes, fixed lens holders, and various coaxial mounting plates. Customers can choose the optimal mounting method based on different application scenarios.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517940613274,"sku":"CC10613-B","price":42.76,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/2-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-BK7_EF_BC_8C_E5_A2_9E_E9_80_8F_E8_86_9C_EF_BC_9A700_20nm-1100_20nm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FrXU3e1OqISaV10RvUnirkwW-dQl.jpg?v=1772672232"},{"product_id":"plano-concave-lens-n-bk7-ar-coating-700-nm-1100-nm-cc10612-b","title":"Plano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm, Unmounted CC10612-B","description":"\u003ch2\u003ePlano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm, Unmounted — Model CC10612-B\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 700 nm-1100 nm, focal length -75.0 mm, Ø25.4 mm, substrate N-BK7.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Plano-Concave Lens has one concave surface and one flat surface, featuring a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or enlarging (or reducing) images. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nN-BK7 is the most common lens material, widely used in visible and near-infrared applications. In addition to N-BK7 plano-concave lenses, LBTEK also offers N-SF11, UV fused silica, and calcium fluoride plano-concave lenses. Due to its lower Abbe number, N-SF11 is often used to produce lenses with shorter focal lengths. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low coefficient of thermal expansion, while calcium fluoride boasts an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400 nm-700 nm, 700 nm-1100 nm, and 1100 nm-1650 nm. All our lenses undergo precision machining and strict quality control, ensuring that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm, Unmounted\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe LBTEK plano-concave lens has a negative focal length and is commonly used in applications such as imaging or beam collimation. LBTEK plano-concave lenses are manufactured using N-BK7 glass that complies with RoHS standards. N-BK7 is the most commonly used material for high-quality optical components, primarily applied in visible and near-infrared fields. All circular lenses from LBTEK can be mounted in LBTEK standard lens tubes, fixed lens holders, and various coaxial mounting plates. Customers can choose the optimal mounting method based on different application scenarios.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517940744346,"sku":"CC10612-B","price":42.76,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/2-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-BK7_EF_BC_8C_E5_A2_9E_E9_80_8F_E8_86_9C_EF_BC_9A700_20nm-1100_20nm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FrXU3e1OqISaV10RvUnirkwW-dQl_364e8599-8d1f-4a45-b3c5-543a8cb654bc.jpg?v=1772672237"},{"product_id":"plano-concave-lens-n-bk7-ar-coating-700-nm-1100-nm-cc10610-b","title":"Plano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm, Unmounted CC10610-B","description":"\u003ch2\u003ePlano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm, Unmounted — Model CC10610-B\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 700 nm-1100 nm, focal length -50.0 mm, Ø25.4 mm, substrate N-BK7.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Plano-Concave Lens has one concave surface and one flat surface, featuring a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or enlarging (or reducing) images. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nN-BK7 is the most common lens material, widely used in visible and near-infrared applications. In addition to N-BK7 plano-concave lenses, LBTEK also offers N-SF11, UV fused silica, and calcium fluoride plano-concave lenses. Due to its lower Abbe number, N-SF11 is often used to produce lenses with shorter focal lengths. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low coefficient of thermal expansion, while calcium fluoride boasts an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400 nm-700 nm, 700 nm-1100 nm, and 1100 nm-1650 nm. All our lenses undergo precision machining and strict quality control, ensuring that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm, Unmounted\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe LBTEK plano-concave lens has a negative focal length and is commonly used in applications such as imaging or beam collimation. LBTEK plano-concave lenses are manufactured using N-BK7 glass that complies with RoHS standards. N-BK7 is the most commonly used material for high-quality optical components, primarily applied in visible and near-infrared fields. All circular lenses from LBTEK can be mounted in LBTEK standard lens tubes, fixed lens holders, and various coaxial mounting plates. Customers can choose the optimal mounting method based on different application scenarios.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517940842650,"sku":"CC10610-B","price":42.76,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/2-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-BK7_EF_BC_8C_E5_A2_9E_E9_80_8F_E8_86_9C_EF_BC_9A700_20nm-1100_20nm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FrXU3e1OqISaV10RvUnirkwW-dQl_2ecbb485-db5a-4226-ac2f-c1d3c40db169.jpg?v=1772672242"},{"product_id":"plano-concave-lens-n-bk7-ar-coating-700-nm-1100-nm-cc10310-b","title":"Plano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm, Unmounted CC10310-B","description":"\u003ch2\u003ePlano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm, Unmounted — Model CC10310-B\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 700 nm-1100 nm, focal length -50.0 mm, Ø12.7 mm, substrate N-BK7.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Plano-Concave Lens has one concave surface and one flat surface, featuring a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or enlarging (or reducing) images. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nN-BK7 is the most common lens material, widely used in visible and near-infrared applications. In addition to N-BK7 plano-concave lenses, LBTEK also offers N-SF11, UV fused silica, and calcium fluoride plano-concave lenses. Due to its lower Abbe number, N-SF11 is often used to produce lenses with shorter focal lengths. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low coefficient of thermal expansion, while calcium fluoride boasts an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400 nm-700 nm, 700 nm-1100 nm, and 1100 nm-1650 nm. All our lenses undergo precision machining and strict quality control, ensuring that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm, Unmounted\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe LBTEK plano-concave lens has a negative focal length and is commonly used in applications such as imaging or beam collimation. LBTEK plano-concave lenses are manufactured using N-BK7 glass that complies with RoHS standards. N-BK7 is the most commonly used material for high-quality optical components, primarily applied in visible and near-infrared fields. All circular lenses from LBTEK can be mounted in LBTEK standard lens tubes, fixed lens holders, and various coaxial mounting plates. Customers can choose the optimal mounting method based on different application scenarios.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517941039258,"sku":"CC10310-B","price":39.24,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/2-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-BK7_EF_BC_8C_E5_A2_9E_E9_80_8F_E8_86_9C_EF_BC_9A700_20nm-1100_20nm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FrXU3e1OqISaV10RvUnirkwW-dQl_92fe0f80-3177-41c4-a349-d72063247542.jpg?v=1772672247"},{"product_id":"plano-concave-lens-n-bk7-ar-coating-700-nm-1100-nm-cc10307-b","title":"Plano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm, Unmounted CC10307-B","description":"\u003ch2\u003ePlano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm, Unmounted — Model CC10307-B\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 700 nm-1100 nm, focal length -30.0 mm, Ø12.7 mm, substrate N-BK7.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Plano-Concave Lens has one concave surface and one flat surface, featuring a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or enlarging (or reducing) images. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nN-BK7 is the most common lens material, widely used in visible and near-infrared applications. In addition to N-BK7 plano-concave lenses, LBTEK also offers N-SF11, UV fused silica, and calcium fluoride plano-concave lenses. Due to its lower Abbe number, N-SF11 is often used to produce lenses with shorter focal lengths. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low coefficient of thermal expansion, while calcium fluoride boasts an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400 nm-700 nm, 700 nm-1100 nm, and 1100 nm-1650 nm. All our lenses undergo precision machining and strict quality control, ensuring that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm, Unmounted\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe LBTEK plano-concave lens has a negative focal length and is commonly used in applications such as imaging or beam collimation. LBTEK plano-concave lenses are manufactured using N-BK7 glass that complies with RoHS standards. N-BK7 is the most commonly used material for high-quality optical components, primarily applied in visible and near-infrared fields. All circular lenses from LBTEK can be mounted in LBTEK standard lens tubes, fixed lens holders, and various coaxial mounting plates. Customers can choose the optimal mounting method based on different application scenarios.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517941104794,"sku":"CC10307-B","price":39.24,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/2-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-BK7_EF_BC_8C_E5_A2_9E_E9_80_8F_E8_86_9C_EF_BC_9A700_20nm-1100_20nm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FrXU3e1OqISaV10RvUnirkwW-dQl_e8bde8c1-0168-40bc-b4c3-3cec75a27445.jpg?v=1772672252"},{"product_id":"plano-concave-lens-n-bk7-ar-coating-700-nm-1100-nm-cc10305-b","title":"Plano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm, Unmounted CC10305-B","description":"\u003ch2\u003ePlano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm, Unmounted — Model CC10305-B\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 700 nm-1100 nm, focal length -25.0 mm, Ø12.7 mm, substrate N-BK7.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Plano-Concave Lens has one concave surface and one flat surface, featuring a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or enlarging (or reducing) images. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nN-BK7 is the most common lens material, widely used in visible and near-infrared applications. In addition to N-BK7 plano-concave lenses, LBTEK also offers N-SF11, UV fused silica, and calcium fluoride plano-concave lenses. Due to its lower Abbe number, N-SF11 is often used to produce lenses with shorter focal lengths. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low coefficient of thermal expansion, while calcium fluoride boasts an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400 nm-700 nm, 700 nm-1100 nm, and 1100 nm-1650 nm. All our lenses undergo precision machining and strict quality control, ensuring that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm, Unmounted\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe LBTEK plano-concave lens has a negative focal length and is commonly used in applications such as imaging or beam collimation. LBTEK plano-concave lenses are manufactured using N-BK7 glass that complies with RoHS standards. N-BK7 is the most commonly used material for high-quality optical components, primarily applied in visible and near-infrared fields. All circular lenses from LBTEK can be mounted in LBTEK standard lens tubes, fixed lens holders, and various coaxial mounting plates. Customers can choose the optimal mounting method based on different application scenarios.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517941203098,"sku":"CC10305-B","price":39.24,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/2-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-BK7_EF_BC_8C_E5_A2_9E_E9_80_8F_E8_86_9C_EF_BC_9A700_20nm-1100_20nm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FrXU3e1OqISaV10RvUnirkwW-dQl_d14f21a0-099f-47fe-897f-4a2d433af67d.jpg?v=1772672257"},{"product_id":"plano-concave-lens-n-bk7-ar-coating-700-nm-1100-nm-cc10024-b","title":"Plano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm, Unmounted CC10024-B","description":"\u003ch2\u003ePlano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm, Unmounted — Model CC10024-B\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 700 nm-1100 nm, focal length -24.0 mm, Ø6.0 mm, substrate N-BK7.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Plano-Concave Lens has one concave surface and one flat surface, featuring a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or enlarging (or reducing) images. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nN-BK7 is the most common lens material, widely used in visible and near-infrared applications. In addition to N-BK7 plano-concave lenses, LBTEK also offers N-SF11, UV fused silica, and calcium fluoride plano-concave lenses. Due to its lower Abbe number, N-SF11 is often used to produce lenses with shorter focal lengths. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low coefficient of thermal expansion, while calcium fluoride boasts an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400 nm-700 nm, 700 nm-1100 nm, and 1100 nm-1650 nm. All our lenses undergo precision machining and strict quality control, ensuring that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-BK7, AR Coating: 700 nm-1100 nm, Unmounted\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe LBTEK plano-concave lens has a negative focal length and is commonly used in applications such as imaging or beam collimation. LBTEK plano-concave lenses are manufactured using N-BK7 glass that complies with RoHS standards. N-BK7 is the most commonly used material for high-quality optical components, primarily applied in visible and near-infrared fields. All circular lenses from LBTEK can be mounted in LBTEK standard lens tubes, fixed lens holders, and various coaxial mounting plates. Customers can choose the optimal mounting method based on different application scenarios.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517941301402,"sku":"CC10024-B","price":46.11,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/2-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-BK7_EF_BC_8C_E5_A2_9E_E9_80_8F_E8_86_9C_EF_BC_9A700_20nm-1100_20nm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FrXU3e1OqISaV10RvUnirkwW-dQl_cd54bff3-60de-4e16-af2c-9f0dbe1f73b9.jpg?v=1772672263"},{"product_id":"plano-concave-lens-n-sf11-ar-coating-1100-nm-1650-nm-mcc30607-c","title":"Plano-Concave Lens, N-SF11, AR Coating: 1100 nm-1650 nm MCC30607-C","description":"\u003ch2\u003ePlano-Concave Lens, N-SF11, AR Coating: 1100 nm-1650 nm — Model MCC30607-C\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 1100 nm-1650 nm, focal length -30.0 mm, Ø25.4 mm, substrate N-SF11.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 1100 nm-1650 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eLow Abbe Number, High Dispersion\u003c\/li\u003e\n\u003cli\u003eApplications: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or expanding (or reducing) the image. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nBecause N-SF11 has a low Abbe number, LBTEK chooses to use N-SF11 to manufacture lenses with smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic and alkaline) environments. Apart from N-SF11 plano-concave lenses, LBTEK also offers plano-concave lenses made of N-BK7, UV fused silica, and calcium fluoride. N-BK7 is the most commonly used material for high-quality optical components, widely applied in visible and near-infrared applications. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low thermal expansion coefficient, while calcium fluoride has an extremely high damage threshold and chemical inertness.        \nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo fine processing and strict quality control to ensure that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-SF11, AR Coating: 1100 nm-1650 nm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 1100 nm-1650 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003cli\u003ePre-installed Mechanical Housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have negative focal lengths and are commonly used in applications such as imaging or beam collimation. Since N-SF11 has a lower Abbe number, LBTEK chooses to use RoHS-certified N-SF11 to manufacture lenses with various smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic or alkaline) environments. All circular lenses from LBTEK come pre-installed with standard lens tubes or lens mounting adapters. The surfaces of these mechanical components are engraved with product model, type, diameter, and focal length, allowing users to quickly identify lens parameters.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517941399706,"sku":"MCC30607-C","price":69.73,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-SF11_EF_BC_8C_E5_A2_9E_E9_80_8F_E8_86_9C_EF_BC_9A1100_20nm-1650_20nm-FhYyMXvd3Vvd4zuC7GjvaS1T9Qh2.jpg?v=1772672268"},{"product_id":"plano-concave-lens-n-sf11-ar-coating-1100-nm-1650-nm-cc30607-c","title":"Plano-Concave Lens, N-SF11, AR Coating: 1100 nm-1650 nm, Unmounted CC30607-C","description":"\u003ch2\u003ePlano-Concave Lens, N-SF11, AR Coating: 1100 nm-1650 nm, Unmounted — Model CC30607-C\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 1100 nm-1650 nm, focal length -30.0 mm, Ø25.4 mm, substrate N-SF11.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 1100 nm-1650 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eLow Abbe Number, High Dispersion\u003c\/li\u003e\n\u003cli\u003eApplications: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or expanding (or reducing) the image. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nBecause N-SF11 has a low Abbe number, LBTEK chooses to use N-SF11 to manufacture lenses with smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic and alkaline) environments. Apart from N-SF11 plano-concave lenses, LBTEK also offers plano-concave lenses made of N-BK7, UV fused silica, and calcium fluoride. N-BK7 is the most commonly used material for high-quality optical components, widely applied in visible and near-infrared applications. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low thermal expansion coefficient, while calcium fluoride has an extremely high damage threshold and chemical inertness.        \nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo fine processing and strict quality control to ensure that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-SF11, AR Coating: 1100 nm-1650 nm, Unmounted\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 1100 nm-1650 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have a negative focal length and are commonly used in applications such as imaging or beam collimation. Since N-SF11 has a lower Abbe number, LBTEK chooses to use RoHS-certified N-SF11 to manufacture lenses with various smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic or alkaline) environments. All circular lenses from LBTEK can be mounted in LBTEK standard lens tubes, fixed lens holders, and various coaxial mounting plates. Customers can select the optimal mounting method based on different application scenarios.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517941530778,"sku":"CC30607-C","price":53.36,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/2-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-SF11_EF_BC_8C_E5_A2_9E_E9_80_8F_E8_86_9C_EF_BC_9A1100_20nm-1650_20nm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-Fppd6v1LaQImlAUtKp9wHh2nvWwI.jpg?v=1772672273"},{"product_id":"plano-concave-lens-n-sf11-ar-coating-1100-nm-1650-nm-cc30025-c","title":"Plano-Concave Lens, N-SF11, AR Coating: 1100 nm-1650 nm, Unmounted CC30025-C","description":"\u003ch2\u003ePlano-Concave Lens, N-SF11, AR Coating: 1100 nm-1650 nm, Unmounted — Model CC30025-C\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 1100 nm-1650 nm, focal length -6.0 mm, Ø6.0 mm, substrate N-SF11.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 1100 nm-1650 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eLow Abbe Number, High Dispersion\u003c\/li\u003e\n\u003cli\u003eApplications: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or expanding (or reducing) the image. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nBecause N-SF11 has a low Abbe number, LBTEK chooses to use N-SF11 to manufacture lenses with smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic and alkaline) environments. Apart from N-SF11 plano-concave lenses, LBTEK also offers plano-concave lenses made of N-BK7, UV fused silica, and calcium fluoride. N-BK7 is the most commonly used material for high-quality optical components, widely applied in visible and near-infrared applications. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low thermal expansion coefficient, while calcium fluoride has an extremely high damage threshold and chemical inertness.        \nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo fine processing and strict quality control to ensure that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-SF11, AR Coating: 1100 nm-1650 nm, Unmounted\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 1100 nm-1650 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have a negative focal length and are commonly used in applications such as imaging or beam collimation. Since N-SF11 has a lower Abbe number, LBTEK chooses to use RoHS-certified N-SF11 to manufacture lenses with various smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic or alkaline) environments. All circular lenses from LBTEK can be mounted in LBTEK standard lens tubes, fixed lens holders, and various coaxial mounting plates. Customers can select the optimal mounting method based on different application scenarios.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517941661850,"sku":"CC30025-C","price":45.18,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/2-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-SF11_EF_BC_8C_E5_A2_9E_E9_80_8F_E8_86_9C_EF_BC_9A1100_20nm-1650_20nm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-Fppd6v1LaQImlAUtKp9wHh2nvWwI_2fde325e-be8d-48ed-8295-47514df61b5c.jpg?v=1772672278"},{"product_id":"plano-concave-lens-n-sf11-ar-coating-400-nm-700-nm-mcc30303-a","title":"Plano-Concave Lens, N-SF11, AR Coating: 400 nm-700 nm MCC30303-A","description":"\u003ch2\u003ePlano-Concave Lens, N-SF11, AR Coating: 400 nm-700 nm — Model MCC30303-A\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 400 nm-700 nm, focal length -15.0 mm, Ø12.7 mm, substrate N-SF11.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 400 nm-700 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eLow Abbe Number, High Dispersion\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or expanding (or reducing) the image. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nBecause N-SF11 has a low Abbe number, LBTEK chooses to use N-SF11 to manufacture lenses with smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic and alkaline) environments. Apart from N-SF11 plano-concave lenses, LBTEK also offers plano-concave lenses made of N-BK7, UV fused silica, and calcium fluoride. N-BK7 is the most commonly used material for high-quality optical components, widely applied in visible and near-infrared applications. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low thermal expansion coefficient, while calcium fluoride has an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo fine processing and strict quality control to ensure that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-SF11, AR Coating: 400 nm-700 nm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 400 nm-700 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003cli\u003ePre-installed Mechanical Housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have negative focal lengths and are commonly used in applications such as imaging or beam collimation. Since N-SF11 has a lower Abbe number, LBTEK chooses to use RoHS-certified N-SF11 to manufacture lenses with various smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic or alkaline) environments. All circular lenses from LBTEK come pre-installed with standard lens sleeves or lens mounting adapters. The surfaces of these mechanical components are engraved with product model, type, diameter, and focal length, allowing users to quickly identify lens parameters.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517941760154,"sku":"MCC30303-A","price":57.64,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-SF11_EF_BC_8C_E5_A2_9E_E9_80_8F_E8_86_9C_EF_BC_9A400_20nm-700_20nm-Fma84OO6aakYiHP2NZCbmemxH_7y.jpg?v=1772672284"},{"product_id":"plano-concave-lens-n-sf11-ar-coating-400-nm-700-nm-mcc30607-a","title":"Plano-Concave Lens, N-SF11, AR Coating: 400 nm-700 nm MCC30607-A","description":"\u003ch2\u003ePlano-Concave Lens, N-SF11, AR Coating: 400 nm-700 nm — Model MCC30607-A\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 400 nm-700 nm, focal length -30.0 mm, Ø25.4 mm, substrate N-SF11.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 400 nm-700 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eLow Abbe Number, High Dispersion\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or expanding (or reducing) the image. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nBecause N-SF11 has a low Abbe number, LBTEK chooses to use N-SF11 to manufacture lenses with smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic and alkaline) environments. Apart from N-SF11 plano-concave lenses, LBTEK also offers plano-concave lenses made of N-BK7, UV fused silica, and calcium fluoride. N-BK7 is the most commonly used material for high-quality optical components, widely applied in visible and near-infrared applications. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low thermal expansion coefficient, while calcium fluoride has an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo fine processing and strict quality control to ensure that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-SF11, AR Coating: 400 nm-700 nm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 400 nm-700 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003cli\u003ePre-installed Mechanical Housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have negative focal lengths and are commonly used in applications such as imaging or beam collimation. Since N-SF11 has a lower Abbe number, LBTEK chooses to use RoHS-certified N-SF11 to manufacture lenses with various smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic or alkaline) environments. All circular lenses from LBTEK come pre-installed with standard lens sleeves or lens mounting adapters. The surfaces of these mechanical components are engraved with product model, type, diameter, and focal length, allowing users to quickly identify lens parameters.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517941825690,"sku":"MCC30607-A","price":66.38,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-SF11_EF_BC_8C_E5_A2_9E_E9_80_8F_E8_86_9C_EF_BC_9A400_20nm-700_20nm-Fma84OO6aakYiHP2NZCbmemxH_7y_9018c9df-1824-4dbb-865a-6a9cdb508dec.jpg?v=1772672289"},{"product_id":"plano-concave-lens-n-sf11-ar-coating-400-nm-700-nm-cc30607-a","title":"Plano-Concave Lens, N-SF11, AR Coating: 400 nm-700 nm, unmounted CC30607-A","description":"\u003ch2\u003ePlano-Concave Lens, N-SF11, AR Coating: 400 nm-700 nm, unmounted — Model CC30607-A\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 400 nm-700 nm, focal length -30.0 mm, Ø25.4 mm, substrate N-SF11.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 400 nm-700 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eLow Abbe Number, High Dispersion\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or expanding (or reducing) the image. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nBecause N-SF11 has a low Abbe number, LBTEK chooses to use N-SF11 to manufacture lenses with smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic and alkaline) environments. Apart from N-SF11 plano-concave lenses, LBTEK also offers plano-concave lenses made of N-BK7, UV fused silica, and calcium fluoride. N-BK7 is the most commonly used material for high-quality optical components, widely applied in visible and near-infrared applications. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low thermal expansion coefficient, while calcium fluoride has an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo fine processing and strict quality control to ensure that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-SF11, AR Coating: 400 nm-700 nm, unmounted\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 400 nm-700 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have a negative focal length and are commonly used in applications such as imaging or beam collimation. Since N-SF11 has a lower Abbe number, LBTEK chooses to use RoHS-certified N-SF11 to manufacture lenses with various smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic or alkaline) environments. All circular lenses from LBTEK can be mounted in LBTEK standard lens tubes, fixed lens holders, and various coaxial mounting plates. Customers can select the optimal mounting method based on different application scenarios.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517941923994,"sku":"CC30607-A","price":49.83,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/2-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-SF11_EF_BC_8C_E5_A2_9E_E9_80_8F_E8_86_9C_EF_BC_9A400_20nm-700_20nm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-Fr5i4E9ZYFqZ0W96QqK5nOPLbu7w.jpg?v=1772672294"},{"product_id":"plano-concave-lens-n-sf11-ar-coating-400-nm-700-nm-cc30303-a","title":"Plano-Concave Lens, N-SF11, AR Coating: 400 nm-700 nm, unmounted CC30303-A","description":"\u003ch2\u003ePlano-Concave Lens, N-SF11, AR Coating: 400 nm-700 nm, unmounted — Model CC30303-A\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 400 nm-700 nm, focal length -15.0 mm, Ø12.7 mm, substrate N-SF11.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 400 nm-700 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eLow Abbe Number, High Dispersion\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or expanding (or reducing) the image. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nBecause N-SF11 has a low Abbe number, LBTEK chooses to use N-SF11 to manufacture lenses with smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic and alkaline) environments. Apart from N-SF11 plano-concave lenses, LBTEK also offers plano-concave lenses made of N-BK7, UV fused silica, and calcium fluoride. N-BK7 is the most commonly used material for high-quality optical components, widely applied in visible and near-infrared applications. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low thermal expansion coefficient, while calcium fluoride has an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo fine processing and strict quality control to ensure that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-SF11, AR Coating: 400 nm-700 nm, unmounted\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 400 nm-700 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have a negative focal length and are commonly used in applications such as imaging or beam collimation. Since N-SF11 has a lower Abbe number, LBTEK chooses to use RoHS-certified N-SF11 to manufacture lenses with various smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic or alkaline) environments. All circular lenses from LBTEK can be mounted in LBTEK standard lens tubes, fixed lens holders, and various coaxial mounting plates. Customers can select the optimal mounting method based on different application scenarios.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517942022298,"sku":"CC30303-A","price":45.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/2-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-SF11_EF_BC_8C_E5_A2_9E_E9_80_8F_E8_86_9C_EF_BC_9A400_20nm-700_20nm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-Fr5i4E9ZYFqZ0W96QqK5nOPLbu7w_83146f21-e940-4f2a-827f-be3ffcdccff5.jpg?v=1772672298"},{"product_id":"plano-concave-lens-n-sf11-ar-coating-400-nm-700-nm-cc30025-a","title":"Plano-Concave Lens, N-SF11, AR Coating: 400 nm-700 nm, unmounted CC30025-A","description":"\u003ch2\u003ePlano-Concave Lens, N-SF11, AR Coating: 400 nm-700 nm, unmounted — Model CC30025-A\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 400 nm-700 nm, focal length -6.0 mm, Ø6.0 mm, substrate N-SF11.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 400 nm-700 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eLow Abbe Number, High Dispersion\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or expanding (or reducing) the image. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nBecause N-SF11 has a low Abbe number, LBTEK chooses to use N-SF11 to manufacture lenses with smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic and alkaline) environments. Apart from N-SF11 plano-concave lenses, LBTEK also offers plano-concave lenses made of N-BK7, UV fused silica, and calcium fluoride. N-BK7 is the most commonly used material for high-quality optical components, widely applied in visible and near-infrared applications. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low thermal expansion coefficient, while calcium fluoride has an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo fine processing and strict quality control to ensure that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-SF11, AR Coating: 400 nm-700 nm, unmounted\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 400 nm-700 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have a negative focal length and are commonly used in applications such as imaging or beam collimation. Since N-SF11 has a lower Abbe number, LBTEK chooses to use RoHS-certified N-SF11 to manufacture lenses with various smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic or alkaline) environments. All circular lenses from LBTEK can be mounted in LBTEK standard lens tubes, fixed lens holders, and various coaxial mounting plates. Customers can select the optimal mounting method based on different application scenarios.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517942120602,"sku":"CC30025-A","price":42.21,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/2-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-SF11_EF_BC_8C_E5_A2_9E_E9_80_8F_E8_86_9C_EF_BC_9A400_20nm-700_20nm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-Fr5i4E9ZYFqZ0W96QqK5nOPLbu7w_42f51397-ad8e-4e45-b977-ff9fa6b1aea8.jpg?v=1772672304"},{"product_id":"plano-concave-lens-n-sf11-ar-coating-700-nm-1100-nm-mcc30303-b","title":"Plano-Concave Lens, N-SF11, AR Coating: 700 nm-1100 nm MCC30303-B","description":"\u003ch2\u003ePlano-Concave Lens, N-SF11, AR Coating: 700 nm-1100 nm — Model MCC30303-B\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 700 nm-1100 nm, focal length -15.0 mm, Ø12.7 mm, substrate N-SF11.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eLow Abbe Number, High Dispersion\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Contraction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or expanding (or reducing) the image. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nBecause N-SF11 has a low Abbe number, LBTEK chooses to use N-SF11 to manufacture lenses with smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic and alkaline) environments. Apart from N-SF11 plano-concave lenses, LBTEK also offers plano-concave lenses made of N-BK7, UV fused silica, and calcium fluoride. N-BK7 is the most commonly used material for high-quality optical components, widely applied in visible and near-infrared applications. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low thermal expansion coefficient, while calcium fluoride has an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo fine processing and strict quality control to ensure that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-SF11, AR Coating: 700 nm-1100 nm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003cli\u003ePre-installed Mechanical Housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have negative focal lengths and are commonly used in applications such as imaging or beam collimation. Since N-SF11 has a lower Abbe number, LBTEK chooses to use RoHS-certified N-SF11 to manufacture lenses with various smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic or alkaline) environments. All circular lenses from LBTEK come pre-installed with standard lens tubes or lens mounting adapters. The surfaces of these mechanical components are engraved with product model, type, diameter, and focal length, allowing users to quickly identify lens parameters.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517942218906,"sku":"MCC30303-B","price":58.93,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-SF11_EF_BC_8C_E5_A2_9E_E9_80_8F_E8_86_9C_EF_BC_9A700_20nm-1100_20nm-FnsCsU6izYqm6e-xB2uR1zOElvJw.jpg?v=1772672309"},{"product_id":"plano-concave-lens-n-sf11-ar-coating-700-nm-1100-nm-mcc30607-b","title":"Plano-Concave Lens, N-SF11, AR Coating: 700 nm-1100 nm MCC30607-B","description":"\u003ch2\u003ePlano-Concave Lens, N-SF11, AR Coating: 700 nm-1100 nm — Model MCC30607-B\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 700 nm-1100 nm, focal length -30.0 mm, Ø25.4 mm, substrate N-SF11.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eLow Abbe Number, High Dispersion\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Contraction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or expanding (or reducing) the image. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nBecause N-SF11 has a low Abbe number, LBTEK chooses to use N-SF11 to manufacture lenses with smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic and alkaline) environments. Apart from N-SF11 plano-concave lenses, LBTEK also offers plano-concave lenses made of N-BK7, UV fused silica, and calcium fluoride. N-BK7 is the most commonly used material for high-quality optical components, widely applied in visible and near-infrared applications. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low thermal expansion coefficient, while calcium fluoride has an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo fine processing and strict quality control to ensure that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-SF11, AR Coating: 700 nm-1100 nm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003cli\u003ePre-installed Mechanical Housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have negative focal lengths and are commonly used in applications such as imaging or beam collimation. Since N-SF11 has a lower Abbe number, LBTEK chooses to use RoHS-certified N-SF11 to manufacture lenses with various smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic or alkaline) environments. All circular lenses from LBTEK come pre-installed with standard lens tubes or lens mounting adapters. The surfaces of these mechanical components are engraved with product model, type, diameter, and focal length, allowing users to quickly identify lens parameters.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517942317210,"sku":"MCC30607-B","price":66.76,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-SF11_EF_BC_8C_E5_A2_9E_E9_80_8F_E8_86_9C_EF_BC_9A700_20nm-1100_20nm-FnsCsU6izYqm6e-xB2uR1zOElvJw_24913a29-4b4c-4196-a862-fffbeb9ad83d.jpg?v=1772672314"},{"product_id":"plano-concave-lens-n-sf11-ar-coating-700-nm-1100-nm-cc30607-b","title":"Plano-Concave Lens, N-SF11, AR Coating: 700 nm-1100 nm, Unmounted CC30607-B","description":"\u003ch2\u003ePlano-Concave Lens, N-SF11, AR Coating: 700 nm-1100 nm, Unmounted — Model CC30607-B\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 700 nm-1100 nm, focal length -30.0 mm, Ø25.4 mm, substrate N-SF11.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eLow Abbe Number, High Dispersion\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Contraction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or expanding (or reducing) the image. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nBecause N-SF11 has a low Abbe number, LBTEK chooses to use N-SF11 to manufacture lenses with smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic and alkaline) environments. Apart from N-SF11 plano-concave lenses, LBTEK also offers plano-concave lenses made of N-BK7, UV fused silica, and calcium fluoride. N-BK7 is the most commonly used material for high-quality optical components, widely applied in visible and near-infrared applications. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low thermal expansion coefficient, while calcium fluoride has an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo fine processing and strict quality control to ensure that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-SF11, AR Coating: 700 nm-1100 nm, Unmounted\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have a negative focal length and are commonly used in applications such as imaging or beam collimation. Since N-SF11 has a lower Abbe number, LBTEK chooses to use RoHS-certified N-SF11 to manufacture lenses with various smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic or alkaline) environments. All circular lenses from LBTEK can be mounted in LBTEK standard lens tubes, fixed lens holders, and various coaxial mounting plates. Customers can select the optimal mounting method based on different application scenarios.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517942415514,"sku":"CC30607-B","price":51.32,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/2-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-SF11_EF_BC_8C_E5_A2_9E_E9_80_8F_E8_86_9C_EF_BC_9A700_20nm-1100_20nm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FnHa8f0GHmukpD0hgF3JeDB19ujK.jpg?v=1772672320"},{"product_id":"plano-concave-lens-n-sf11-ar-coating-700-nm-1100-nm-cc30303-b","title":"Plano-Concave Lens, N-SF11, AR Coating: 700 nm-1100 nm, Unmounted CC30303-B","description":"\u003ch2\u003ePlano-Concave Lens, N-SF11, AR Coating: 700 nm-1100 nm, Unmounted — Model CC30303-B\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 700 nm-1100 nm, focal length -15.0 mm, Ø12.7 mm, substrate N-SF11.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eLow Abbe Number, High Dispersion\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Contraction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) the focal length, or expanding (or reducing) the image. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nBecause N-SF11 has a low Abbe number, LBTEK chooses to use N-SF11 to manufacture lenses with smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic and alkaline) environments. Apart from N-SF11 plano-concave lenses, LBTEK also offers plano-concave lenses made of N-BK7, UV fused silica, and calcium fluoride. N-BK7 is the most commonly used material for high-quality optical components, widely applied in visible and near-infrared applications. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low thermal expansion coefficient, while calcium fluoride has an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo fine processing and strict quality control to ensure that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-SF11, AR Coating: 700 nm-1100 nm, Unmounted\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-SF11\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 700 nm-1100 nm (AR Coating)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have a negative focal length and are commonly used in applications such as imaging or beam collimation. Since N-SF11 has a lower Abbe number, LBTEK chooses to use RoHS-certified N-SF11 to manufacture lenses with various smaller focal lengths. Additionally, N-SF11 lenses are more suitable for particularly harsh (acidic or alkaline) environments. All circular lenses from LBTEK can be mounted in LBTEK standard lens tubes, fixed lens holders, and various coaxial mounting plates. Customers can select the optimal mounting method based on different application scenarios.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517942513818,"sku":"CC30303-B","price":45.73,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/2-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-SF11_EF_BC_8C_E5_A2_9E_E9_80_8F_E8_86_9C_EF_BC_9A700_20nm-1100_20nm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FnHa8f0GHmukpD0hgF3JeDB19ujK_15f0610e-c20c-4d43-b08b-774eda1359dc.jpg?v=1772672325"},{"product_id":"plano-concave-lens-n-bk7-uncoated-350-nm-2-0-μm-mcc10305","title":"Plano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm MCC10305","description":"\u003ch2\u003ePlano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm — Model MCC10305\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 350 nm-2.0 μm, focal length -25.0 mm, Ø12.7 mm, substrate N-BK7.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 350 nm-2 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) focal length, or expanding (or reducing) image size. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nN-BK7 is the most common lens material, widely used in visible and near-infrared applications. In addition to N-BK7 plano-concave lenses, LBTEK also offers N-SF11, UV fused silica, and calcium fluoride plano-concave lenses. Due to its lower Abbe number, N-SF11 is often used to produce lenses with shorter focal lengths. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low coefficient of thermal expansion, while calcium fluoride has an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo precision machining and strict quality control to ensure that LBTEK delivers high-quality lens products at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 350 nm-2 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have a negative focal length and are commonly used in applications such as imaging or beam collimation. LBTEK plano-concave lenses are manufactured using N-BK7 glass that complies with RoHS standards. N-BK7 is the most commonly used material for high-quality optical components, primarily applied in visible and near-infrared fields. All circular lenses from LBTEK come pre-installed with standard lens tubes or lens mounting adapters. These mechanical components are engraved with product model, type, diameter, and focal length for easy identification of lens parameters by users.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517942612122,"sku":"MCC10305","price":37.38,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-BK7_EF_BC_8C_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A350_20nm-2.0_20_CE_BCm-FirU3KkmiAixoPh-Gh20mT-5T8zY.jpg?v=1772672330"},{"product_id":"plano-concave-lens-n-bk7-uncoated-350-nm-2-0-μm-mcc10307","title":"Plano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm MCC10307","description":"\u003ch2\u003ePlano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm — Model MCC10307\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 350 nm-2.0 μm, focal length -30.0 mm, Ø12.7 mm, substrate N-BK7.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 350 nm-2 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) focal length, or expanding (or reducing) image size. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nN-BK7 is the most common lens material, widely used in visible and near-infrared applications. In addition to N-BK7 plano-concave lenses, LBTEK also offers N-SF11, UV fused silica, and calcium fluoride plano-concave lenses. Due to its lower Abbe number, N-SF11 is often used to produce lenses with shorter focal lengths. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low coefficient of thermal expansion, while calcium fluoride has an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo precision machining and strict quality control to ensure that LBTEK delivers high-quality lens products at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 350 nm-2 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have a negative focal length and are commonly used in applications such as imaging or beam collimation. LBTEK plano-concave lenses are manufactured using N-BK7 glass that complies with RoHS standards. N-BK7 is the most commonly used material for high-quality optical components, primarily applied in visible and near-infrared fields. All circular lenses from LBTEK come pre-installed with standard lens tubes or lens mounting adapters. These mechanical components are engraved with product model, type, diameter, and focal length for easy identification of lens parameters by users.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517942677658,"sku":"MCC10307","price":37.38,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-BK7_EF_BC_8C_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A350_20nm-2.0_20_CE_BCm-FirU3KkmiAixoPh-Gh20mT-5T8zY_fea48a8d-6872-481a-8962-7f05fa6b4236.jpg?v=1772672335"},{"product_id":"plano-concave-lens-n-bk7-uncoated-350-nm-2-0-μm-mcc10310","title":"Plano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm MCC10310","description":"\u003ch2\u003ePlano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm — Model MCC10310\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 350 nm-2.0 μm, focal length -50.0 mm, Ø12.7 mm, substrate N-BK7.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 350 nm-2 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) focal length, or expanding (or reducing) image size. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nN-BK7 is the most common lens material, widely used in visible and near-infrared applications. In addition to N-BK7 plano-concave lenses, LBTEK also offers N-SF11, UV fused silica, and calcium fluoride plano-concave lenses. Due to its lower Abbe number, N-SF11 is often used to produce lenses with shorter focal lengths. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low coefficient of thermal expansion, while calcium fluoride has an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo precision machining and strict quality control to ensure that LBTEK delivers high-quality lens products at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 350 nm-2 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have a negative focal length and are commonly used in applications such as imaging or beam collimation. LBTEK plano-concave lenses are manufactured using N-BK7 glass that complies with RoHS standards. N-BK7 is the most commonly used material for high-quality optical components, primarily applied in visible and near-infrared fields. All circular lenses from LBTEK come pre-installed with standard lens tubes or lens mounting adapters. These mechanical components are engraved with product model, type, diameter, and focal length for easy identification of lens parameters by users.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517942743194,"sku":"MCC10310","price":37.38,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-BK7_EF_BC_8C_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A350_20nm-2.0_20_CE_BCm-FirU3KkmiAixoPh-Gh20mT-5T8zY_5ca61b36-6dc9-48e8-85fe-d6db43cc8605.jpg?v=1772672340"},{"product_id":"plano-concave-lens-n-bk7-uncoated-350-nm-2-0-μm-mcc10610","title":"Plano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm MCC10610","description":"\u003ch2\u003ePlano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm — Model MCC10610\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 350 nm-2.0 μm, focal length -50.0 mm, Ø25.4 mm, substrate N-BK7.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 350 nm-2 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) focal length, or expanding (or reducing) image size. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nN-BK7 is the most common lens material, widely used in visible and near-infrared applications. In addition to N-BK7 plano-concave lenses, LBTEK also offers N-SF11, UV fused silica, and calcium fluoride plano-concave lenses. Due to its lower Abbe number, N-SF11 is often used to produce lenses with shorter focal lengths. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low coefficient of thermal expansion, while calcium fluoride has an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo precision machining and strict quality control to ensure that LBTEK delivers high-quality lens products at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 350 nm-2 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have a negative focal length and are commonly used in applications such as imaging or beam collimation. LBTEK plano-concave lenses are manufactured using N-BK7 glass that complies with RoHS standards. N-BK7 is the most commonly used material for high-quality optical components, primarily applied in visible and near-infrared fields. All circular lenses from LBTEK come pre-installed with standard lens tubes or lens mounting adapters. These mechanical components are engraved with product model, type, diameter, and focal length for easy identification of lens parameters by users.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517942841498,"sku":"MCC10610","price":41.47,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-BK7_EF_BC_8C_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A350_20nm-2.0_20_CE_BCm-FirU3KkmiAixoPh-Gh20mT-5T8zY_e35b8771-e3b9-420a-81f9-05e59dcd10ea.jpg?v=1772672346"},{"product_id":"plano-concave-lens-n-bk7-uncoated-350-nm-2-0-μm-mcc10612","title":"Plano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm MCC10612","description":"\u003ch2\u003ePlano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm — Model MCC10612\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 350 nm-2.0 μm, focal length -75.0 mm, Ø25.4 mm, substrate N-BK7.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 350 nm-2 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) focal length, or expanding (or reducing) image size. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nN-BK7 is the most common lens material, widely used in visible and near-infrared applications. In addition to N-BK7 plano-concave lenses, LBTEK also offers N-SF11, UV fused silica, and calcium fluoride plano-concave lenses. Due to its lower Abbe number, N-SF11 is often used to produce lenses with shorter focal lengths. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low coefficient of thermal expansion, while calcium fluoride has an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo precision machining and strict quality control to ensure that LBTEK delivers high-quality lens products at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 350 nm-2 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have a negative focal length and are commonly used in applications such as imaging or beam collimation. LBTEK plano-concave lenses are manufactured using N-BK7 glass that complies with RoHS standards. N-BK7 is the most commonly used material for high-quality optical components, primarily applied in visible and near-infrared fields. All circular lenses from LBTEK come pre-installed with standard lens tubes or lens mounting adapters. These mechanical components are engraved with product model, type, diameter, and focal length for easy identification of lens parameters by users.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517942939802,"sku":"MCC10612","price":41.47,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-BK7_EF_BC_8C_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A350_20nm-2.0_20_CE_BCm-FirU3KkmiAixoPh-Gh20mT-5T8zY_e4ca7faa-67cf-4a83-95a5-dccf7f3899b0.jpg?v=1772672351"},{"product_id":"plano-concave-lens-n-bk7-uncoated-350-nm-2-0-μm-mcc10613","title":"Plano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm MCC10613","description":"\u003ch2\u003ePlano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm — Model MCC10613\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 350 nm-2.0 μm, focal length -100.0 mm, Ø25.4 mm, substrate N-BK7.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 350 nm-2 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) focal length, or expanding (or reducing) image size. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nN-BK7 is the most common lens material, widely used in visible and near-infrared applications. In addition to N-BK7 plano-concave lenses, LBTEK also offers N-SF11, UV fused silica, and calcium fluoride plano-concave lenses. Due to its lower Abbe number, N-SF11 is often used to produce lenses with shorter focal lengths. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low coefficient of thermal expansion, while calcium fluoride has an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo precision machining and strict quality control to ensure that LBTEK delivers high-quality lens products at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 350 nm-2 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have a negative focal length and are commonly used in applications such as imaging or beam collimation. LBTEK plano-concave lenses are manufactured using N-BK7 glass that complies with RoHS standards. N-BK7 is the most commonly used material for high-quality optical components, primarily applied in visible and near-infrared fields. All circular lenses from LBTEK come pre-installed with standard lens tubes or lens mounting adapters. These mechanical components are engraved with product model, type, diameter, and focal length for easy identification of lens parameters by users.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517943038106,"sku":"MCC10613","price":41.65,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-BK7_EF_BC_8C_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A350_20nm-2.0_20_CE_BCm-FirU3KkmiAixoPh-Gh20mT-5T8zY_18ae9b18-0cd7-4c54-91e5-dc9b16e0b142.jpg?v=1772672356"},{"product_id":"plano-concave-lens-n-bk7-uncoated-350-nm-2-0-μm-cc10024","title":"Plano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm, Unmounted CC10024","description":"\u003ch2\u003ePlano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm, Unmounted — Model CC10024\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 350 nm-2.0 μm, focal length -24.0 mm, Ø6.0 mm, substrate N-BK7.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 350 nm-2 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) focal length, or expanding (or reducing) image size. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nN-BK7 is the most common lens material, widely used in visible and near-infrared applications. In addition to N-BK7 plano-concave lenses, LBTEK also offers N-SF11, UV fused silica, and calcium fluoride plano-concave lenses. Due to its lower Abbe number, N-SF11 is often used to produce lenses with shorter focal lengths. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low coefficient of thermal expansion, while calcium fluoride has an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo precision machining and strict quality control to ensure that LBTEK delivers high-quality lens products at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm, Unmounted\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 350 nm-2 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003cli\u003ePre-installed mechanical housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe LBTEK plano-concave lens has a negative focal length and is commonly used in applications such as imaging or beam collimation. LBTEK plano-concave lenses are manufactured using N-BK7 glass that complies with RoHS standards. N-BK7 is the most commonly used material for high-quality optical components, primarily applied in visible and near-infrared fields. All circular lenses from LBTEK can be mounted in LBTEK standard lens tubes, fixed lens holders, and various coaxial mounting plates. Customers can choose the optimal mounting method based on different application scenarios.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517943136410,"sku":"CC10024","price":32.91,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/2-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-BK7_EF_BC_8C_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A350_20nm-2.0_20_CE_BCm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FtKUl4eHeNRxi1CXn-KCdG_FX1.jpg?v=1772672361"},{"product_id":"plano-concave-lens-n-bk7-uncoated-350-nm-2-0-μm-cc10305","title":"Plano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm, Unmounted CC10305","description":"\u003ch2\u003ePlano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm, Unmounted — Model CC10305\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 350 nm-2.0 μm, focal length -25.0 mm, Ø12.7 mm, substrate N-BK7.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 350 nm-2 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) focal length, or expanding (or reducing) image size. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nN-BK7 is the most common lens material, widely used in visible and near-infrared applications. In addition to N-BK7 plano-concave lenses, LBTEK also offers N-SF11, UV fused silica, and calcium fluoride plano-concave lenses. Due to its lower Abbe number, N-SF11 is often used to produce lenses with shorter focal lengths. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low coefficient of thermal expansion, while calcium fluoride has an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo precision machining and strict quality control to ensure that LBTEK delivers high-quality lens products at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm, Unmounted\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 350 nm-2 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003cli\u003ePre-installed mechanical housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe LBTEK plano-concave lens has a negative focal length and is commonly used in applications such as imaging or beam collimation. LBTEK plano-concave lenses are manufactured using N-BK7 glass that complies with RoHS standards. N-BK7 is the most commonly used material for high-quality optical components, primarily applied in visible and near-infrared fields. All circular lenses from LBTEK can be mounted in LBTEK standard lens tubes, fixed lens holders, and various coaxial mounting plates. Customers can choose the optimal mounting method based on different application scenarios.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517943234714,"sku":"CC10305","price":24.73,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/2-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-BK7_EF_BC_8C_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A350_20nm-2.0_20_CE_BCm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FtKUl4eHeNRxi1CXn-KCdG_FX1_69162533-e34f-4a7f-88bb-463b177347d9.jpg?v=1772672366"},{"product_id":"plano-concave-lens-n-bk7-uncoated-350-nm-2-0-μm-cc10307","title":"Plano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm, Unmounted CC10307","description":"\u003ch2\u003ePlano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm, Unmounted — Model CC10307\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 350 nm-2.0 μm, focal length -30.0 mm, Ø12.7 mm, substrate N-BK7.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 350 nm-2 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) focal length, or expanding (or reducing) image size. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nN-BK7 is the most common lens material, widely used in visible and near-infrared applications. In addition to N-BK7 plano-concave lenses, LBTEK also offers N-SF11, UV fused silica, and calcium fluoride plano-concave lenses. Due to its lower Abbe number, N-SF11 is often used to produce lenses with shorter focal lengths. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low coefficient of thermal expansion, while calcium fluoride has an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo precision machining and strict quality control to ensure that LBTEK delivers high-quality lens products at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm, Unmounted\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 350 nm-2 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003cli\u003ePre-installed mechanical housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe LBTEK plano-concave lens has a negative focal length and is commonly used in applications such as imaging or beam collimation. LBTEK plano-concave lenses are manufactured using N-BK7 glass that complies with RoHS standards. N-BK7 is the most commonly used material for high-quality optical components, primarily applied in visible and near-infrared fields. All circular lenses from LBTEK can be mounted in LBTEK standard lens tubes, fixed lens holders, and various coaxial mounting plates. Customers can choose the optimal mounting method based on different application scenarios.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517943300250,"sku":"CC10307","price":24.73,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/2-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-BK7_EF_BC_8C_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A350_20nm-2.0_20_CE_BCm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FtKUl4eHeNRxi1CXn-KCdG_FX1_6f4eafd2-b493-4c19-af44-c6d0be353918.jpg?v=1772672372"},{"product_id":"plano-concave-lens-n-bk7-uncoated-350-nm-2-0-μm-cc10610","title":"Plano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm, Unmounted CC10610","description":"\u003ch2\u003ePlano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm, Unmounted — Model CC10610\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 350 nm-2.0 μm, focal length -50.0 mm, Ø25.4 mm, substrate N-BK7.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 350 nm-2 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) focal length, or expanding (or reducing) image size. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nN-BK7 is the most common lens material, widely used in visible and near-infrared applications. In addition to N-BK7 plano-concave lenses, LBTEK also offers N-SF11, UV fused silica, and calcium fluoride plano-concave lenses. Due to its lower Abbe number, N-SF11 is often used to produce lenses with shorter focal lengths. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low coefficient of thermal expansion, while calcium fluoride has an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo precision machining and strict quality control to ensure that LBTEK delivers high-quality lens products at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm, Unmounted\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 350 nm-2 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003cli\u003ePre-installed mechanical housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe LBTEK plano-concave lens has a negative focal length and is commonly used in applications such as imaging or beam collimation. LBTEK plano-concave lenses are manufactured using N-BK7 glass that complies with RoHS standards. N-BK7 is the most commonly used material for high-quality optical components, primarily applied in visible and near-infrared fields. All circular lenses from LBTEK can be mounted in LBTEK standard lens tubes, fixed lens holders, and various coaxial mounting plates. Customers can choose the optimal mounting method based on different application scenarios.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517943398554,"sku":"CC10610","price":28.81,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/2-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-BK7_EF_BC_8C_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A350_20nm-2.0_20_CE_BCm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FtKUl4eHeNRxi1CXn-KCdG_FX1_9cc2fdb1-edfd-4816-9551-ecc5ea1a9cbe.jpg?v=1772672376"},{"product_id":"plano-concave-lens-n-bk7-uncoated-350-nm-2-0-μm-cc10310","title":"Plano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm, Unmounted CC10310","description":"\u003ch2\u003ePlano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm, Unmounted — Model CC10310\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 350 nm-2.0 μm, focal length -50.0 mm, Ø12.7 mm, substrate N-BK7.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 350 nm-2 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) focal length, or expanding (or reducing) image size. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nN-BK7 is the most common lens material, widely used in visible and near-infrared applications. In addition to N-BK7 plano-concave lenses, LBTEK also offers N-SF11, UV fused silica, and calcium fluoride plano-concave lenses. Due to its lower Abbe number, N-SF11 is often used to produce lenses with shorter focal lengths. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low coefficient of thermal expansion, while calcium fluoride has an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo precision machining and strict quality control to ensure that LBTEK delivers high-quality lens products at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm, Unmounted\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 350 nm-2 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003cli\u003ePre-installed mechanical housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe LBTEK plano-concave lens has a negative focal length and is commonly used in applications such as imaging or beam collimation. LBTEK plano-concave lenses are manufactured using N-BK7 glass that complies with RoHS standards. N-BK7 is the most commonly used material for high-quality optical components, primarily applied in visible and near-infrared fields. All circular lenses from LBTEK can be mounted in LBTEK standard lens tubes, fixed lens holders, and various coaxial mounting plates. Customers can choose the optimal mounting method based on different application scenarios.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517943595162,"sku":"CC10310","price":25.1,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/2-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-BK7_EF_BC_8C_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A350_20nm-2.0_20_CE_BCm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FtKUl4eHeNRxi1CXn-KCdG_FX1_26dde6b2-3d10-461b-838b-8ae0fc03322b.jpg?v=1772672381"},{"product_id":"plano-concave-lens-n-bk7-uncoated-350-nm-2-0-μm-cc10612","title":"Plano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm, Unmounted CC10612","description":"\u003ch2\u003ePlano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm, Unmounted — Model CC10612\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 350 nm-2.0 μm, focal length -75.0 mm, Ø25.4 mm, substrate N-BK7.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 350 nm-2 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) focal length, or expanding (or reducing) image size. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nN-BK7 is the most common lens material, widely used in visible and near-infrared applications. In addition to N-BK7 plano-concave lenses, LBTEK also offers N-SF11, UV fused silica, and calcium fluoride plano-concave lenses. Due to its lower Abbe number, N-SF11 is often used to produce lenses with shorter focal lengths. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low coefficient of thermal expansion, while calcium fluoride has an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo precision machining and strict quality control to ensure that LBTEK delivers high-quality lens products at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm, Unmounted\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 350 nm-2 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003cli\u003ePre-installed mechanical housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe LBTEK plano-concave lens has a negative focal length and is commonly used in applications such as imaging or beam collimation. LBTEK plano-concave lenses are manufactured using N-BK7 glass that complies with RoHS standards. N-BK7 is the most commonly used material for high-quality optical components, primarily applied in visible and near-infrared fields. All circular lenses from LBTEK can be mounted in LBTEK standard lens tubes, fixed lens holders, and various coaxial mounting plates. Customers can choose the optimal mounting method based on different application scenarios.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517943693466,"sku":"CC10612","price":28.81,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/2-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-BK7_EF_BC_8C_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A350_20nm-2.0_20_CE_BCm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FtKUl4eHeNRxi1CXn-KCdG_FX1_a39113d3-4596-4c3c-a068-de817aa0e7e3.jpg?v=1772672386"},{"product_id":"plano-concave-lens-n-bk7-uncoated-350-nm-2-0-μm-cc10613","title":"Plano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm, Unmounted CC10613","description":"\u003ch2\u003ePlano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm, Unmounted — Model CC10613\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 350 nm-2.0 μm, focal length -100.0 mm, Ø25.4 mm, substrate N-BK7.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 350 nm-2 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA plano-concave lens has one concave surface and one flat surface, with a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) focal length, or expanding (or reducing) image size. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\nN-BK7 is the most common lens material, widely used in visible and near-infrared applications. In addition to N-BK7 plano-concave lenses, LBTEK also offers N-SF11, UV fused silica, and calcium fluoride plano-concave lenses. Due to its lower Abbe number, N-SF11 is often used to produce lenses with shorter focal lengths. UV fused silica exhibits excellent transmittance in the ultraviolet range and a low coefficient of thermal expansion, while calcium fluoride has an extremely high damage threshold and chemical inertness.\nLBTEK provides uncoated plano-concave lenses as well as lenses with three types of anti-reflection coatings: 400-700 nm, 700-1100 nm, and 1100-1650 nm. All our lenses undergo precision machining and strict quality control to ensure that LBTEK delivers high-quality lens products at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm, Unmounted\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: N-BK7\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 350 nm-2 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003cli\u003ePre-installed mechanical housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe LBTEK plano-concave lens has a negative focal length and is commonly used in applications such as imaging or beam collimation. LBTEK plano-concave lenses are manufactured using N-BK7 glass that complies with RoHS standards. N-BK7 is the most commonly used material for high-quality optical components, primarily applied in visible and near-infrared fields. All circular lenses from LBTEK can be mounted in LBTEK standard lens tubes, fixed lens holders, and various coaxial mounting plates. Customers can choose the optimal mounting method based on different application scenarios.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517943791770,"sku":"CC10613","price":28.81,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/2-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CN-BK7_EF_BC_8C_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A350_20nm-2.0_20_CE_BCm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FtKUl4eHeNRxi1CXn-KCdG_FX1_653ce251-add5-45ef-9ad9-b7cb9df8b302.jpg?v=1772672392"},{"product_id":"plano-concave-lens-uv-fused-silica-uncoated-200-nm-2-1-μm-mcc20317","title":"Plano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm MCC20317","description":"\u003ch2\u003ePlano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm — Model MCC20317\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 200 nm-2.1 μm, focal length -200.0 mm, Ø12.7 mm, substrate UV Fused Silica.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: UV Fused Silica\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 200 nm-2.1 μm (Uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe plano-concave lens has one concave surface and one flat surface, featuring a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) focal length, or expanding (or reducing) images. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\n\nLBTEK chooses Ultraviolet-Grade Fused Silica (UVFS) as the substrate material for lenses because UVFS exhibits high transmittance in the deep ultraviolet spectrum and produces almost no laser-induced fluorescence. Additionally, UV fused silica offers better homogeneity and a lower coefficient of thermal expansion compared to N-BK7. Besides UVFS plano-concave lenses, LBTEK also provides plano-concave lenses made of N-BK7, N-SF11, and calcium fluoride. N-BK7 is the most commonly used material for high-quality optical components, widely applied in visible and near-infrared applications. N-SF11 is characterized by its low Abbe number and high dispersion, while calcium fluoride boasts an extremely high damage threshold and chemical inertness.\n\nLBTEK offers Uncoated UVFS Plano-Concave Lenses as well as lenses with four types of anti-reflection coatings: 245-400nm, 400-700nm, 700-1100nm, and 1100-1650nm. All our lenses undergo precision machining and strict quality control to ensure that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: UVFS\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 200 nm-2.1 μm\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003cli\u003ePre-installed Mechanical Housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have a negative focal length and are commonly used for image reduction or beam divergence. Since UVFS has a low Abbe number, LBTEK selects Ultraviolet-Grade Fused Silica as the lens substrate material because UVFS exhibits high transmittance in the deep ultraviolet spectrum and generates almost no laser-induced fluorescence. Additionally, UV fused silica offers better homogeneity and a lower coefficient of thermal expansion compared to N-BK7. All circular lenses from LBTEK come pre-installed with standard lens sleeves or lens mounting adapters. These mechanical components are engraved with product model, type, diameter, and focal length for easy identification of lens parameters by users.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517943857306,"sku":"MCC20317","price":117.71,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CUVFS_EF_BC_8C_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A200_20nm-2.1_20_CE_BCm-FgtyKt1C_l2qXWMaqCyLBbANK_RW.jpg?v=1772672397"},{"product_id":"plano-concave-lens-uv-fused-silica-uncoated-200-nm-2-1-μm-mcc20313","title":"Plano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm MCC20313","description":"\u003ch2\u003ePlano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm — Model MCC20313\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 200 nm-2.1 μm, focal length -100.0 mm, Ø12.7 mm, substrate UV Fused Silica.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: UV Fused Silica\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 200 nm-2.1 μm (Uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe plano-concave lens has one concave surface and one flat surface, featuring a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) focal length, or expanding (or reducing) images. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\n\nLBTEK chooses Ultraviolet-Grade Fused Silica (UVFS) as the substrate material for lenses because UVFS exhibits high transmittance in the deep ultraviolet spectrum and produces almost no laser-induced fluorescence. Additionally, UV fused silica offers better homogeneity and a lower coefficient of thermal expansion compared to N-BK7. Besides UVFS plano-concave lenses, LBTEK also provides plano-concave lenses made of N-BK7, N-SF11, and calcium fluoride. N-BK7 is the most commonly used material for high-quality optical components, widely applied in visible and near-infrared applications. N-SF11 is characterized by its low Abbe number and high dispersion, while calcium fluoride boasts an extremely high damage threshold and chemical inertness.\n\nLBTEK offers Uncoated UVFS Plano-Concave Lenses as well as lenses with four types of anti-reflection coatings: 245-400nm, 400-700nm, 700-1100nm, and 1100-1650nm. All our lenses undergo precision machining and strict quality control to ensure that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: UVFS\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 200 nm-2.1 μm\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003cli\u003ePre-installed Mechanical Housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have a negative focal length and are commonly used for image reduction or beam divergence. Since UVFS has a low Abbe number, LBTEK selects Ultraviolet-Grade Fused Silica as the lens substrate material because UVFS exhibits high transmittance in the deep ultraviolet spectrum and generates almost no laser-induced fluorescence. Additionally, UV fused silica offers better homogeneity and a lower coefficient of thermal expansion compared to N-BK7. All circular lenses from LBTEK come pre-installed with standard lens sleeves or lens mounting adapters. These mechanical components are engraved with product model, type, diameter, and focal length for easy identification of lens parameters by users.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517943955610,"sku":"MCC20313","price":123.65,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CUVFS_EF_BC_8C_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A200_20nm-2.1_20_CE_BCm-FgtyKt1C_l2qXWMaqCyLBbANK_RW_15b2eec4-3cfc-4f32-ad5b-9e9c15e8affa.jpg?v=1772672404"},{"product_id":"plano-concave-lens-uv-fused-silica-uncoated-200-nm-2-1-μm-mcc20312","title":"Plano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm MCC20312","description":"\u003ch2\u003ePlano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm — Model MCC20312\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 200 nm-2.1 μm, focal length -75.0 mm, Ø12.7 mm, substrate UV Fused Silica.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: UV Fused Silica\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 200 nm-2.1 μm (Uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe plano-concave lens has one concave surface and one flat surface, featuring a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) focal length, or expanding (or reducing) images. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\n\nLBTEK chooses Ultraviolet-Grade Fused Silica (UVFS) as the substrate material for lenses because UVFS exhibits high transmittance in the deep ultraviolet spectrum and produces almost no laser-induced fluorescence. Additionally, UV fused silica offers better homogeneity and a lower coefficient of thermal expansion compared to N-BK7. Besides UVFS plano-concave lenses, LBTEK also provides plano-concave lenses made of N-BK7, N-SF11, and calcium fluoride. N-BK7 is the most commonly used material for high-quality optical components, widely applied in visible and near-infrared applications. N-SF11 is characterized by its low Abbe number and high dispersion, while calcium fluoride boasts an extremely high damage threshold and chemical inertness.\n\nLBTEK offers Uncoated UVFS Plano-Concave Lenses as well as lenses with four types of anti-reflection coatings: 245-400nm, 400-700nm, 700-1100nm, and 1100-1650nm. All our lenses undergo precision machining and strict quality control to ensure that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: UVFS\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 200 nm-2.1 μm\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003cli\u003ePre-installed Mechanical Housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have a negative focal length and are commonly used for image reduction or beam divergence. Since UVFS has a low Abbe number, LBTEK selects Ultraviolet-Grade Fused Silica as the lens substrate material because UVFS exhibits high transmittance in the deep ultraviolet spectrum and generates almost no laser-induced fluorescence. Additionally, UV fused silica offers better homogeneity and a lower coefficient of thermal expansion compared to N-BK7. All circular lenses from LBTEK come pre-installed with standard lens sleeves or lens mounting adapters. These mechanical components are engraved with product model, type, diameter, and focal length for easy identification of lens parameters by users.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517944053914,"sku":"MCC20312","price":123.65,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CUVFS_EF_BC_8C_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A200_20nm-2.1_20_CE_BCm-FgtyKt1C_l2qXWMaqCyLBbANK_RW_e1ff0b41-0d22-4d81-9323-58b7e38f0622.jpg?v=1772672408"},{"product_id":"plano-concave-lens-uv-fused-silica-uncoated-200-nm-2-1-μm-mcc20310","title":"Plano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm MCC20310","description":"\u003ch2\u003ePlano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm — Model MCC20310\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 200 nm-2.1 μm, focal length -50.0 mm, Ø12.7 mm, substrate UV Fused Silica.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: UV Fused Silica\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 200 nm-2.1 μm (Uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe plano-concave lens has one concave surface and one flat surface, featuring a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) focal length, or expanding (or reducing) images. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\n\nLBTEK chooses Ultraviolet-Grade Fused Silica (UVFS) as the substrate material for lenses because UVFS exhibits high transmittance in the deep ultraviolet spectrum and produces almost no laser-induced fluorescence. Additionally, UV fused silica offers better homogeneity and a lower coefficient of thermal expansion compared to N-BK7. Besides UVFS plano-concave lenses, LBTEK also provides plano-concave lenses made of N-BK7, N-SF11, and calcium fluoride. N-BK7 is the most commonly used material for high-quality optical components, widely applied in visible and near-infrared applications. N-SF11 is characterized by its low Abbe number and high dispersion, while calcium fluoride boasts an extremely high damage threshold and chemical inertness.\n\nLBTEK offers Uncoated UVFS Plano-Concave Lenses as well as lenses with four types of anti-reflection coatings: 245-400nm, 400-700nm, 700-1100nm, and 1100-1650nm. All our lenses undergo precision machining and strict quality control to ensure that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: UVFS\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 200 nm-2.1 μm\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003cli\u003ePre-installed Mechanical Housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have a negative focal length and are commonly used for image reduction or beam divergence. Since UVFS has a low Abbe number, LBTEK selects Ultraviolet-Grade Fused Silica as the lens substrate material because UVFS exhibits high transmittance in the deep ultraviolet spectrum and generates almost no laser-induced fluorescence. Additionally, UV fused silica offers better homogeneity and a lower coefficient of thermal expansion compared to N-BK7. All circular lenses from LBTEK come pre-installed with standard lens sleeves or lens mounting adapters. These mechanical components are engraved with product model, type, diameter, and focal length for easy identification of lens parameters by users.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517944152218,"sku":"MCC20310","price":123.65,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CUVFS_EF_BC_8C_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A200_20nm-2.1_20_CE_BCm-FgtyKt1C_l2qXWMaqCyLBbANK_RW_cb878821-7754-4b10-922b-13a75a5c4846.jpg?v=1772672412"},{"product_id":"plano-concave-lens-uv-fused-silica-uncoated-200-nm-2-1-μm-mcc20307","title":"Plano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm MCC20307","description":"\u003ch2\u003ePlano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm — Model MCC20307\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 200 nm-2.1 μm, focal length -30.0 mm, Ø12.7 mm, substrate UV Fused Silica.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Material: UV Fused Silica\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 200 nm-2.1 μm (Uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe plano-concave lens has one concave surface and one flat surface, featuring a negative focal length. It is commonly used for beam collimation, increasing (or decreasing) focal length, or expanding (or reducing) images. To minimize spherical aberration, when the incident beam is collimated, it should be directed onto the concave surface of the plano-concave lens.\n\nLBTEK chooses Ultraviolet-Grade Fused Silica (UVFS) as the substrate material for lenses because UVFS exhibits high transmittance in the deep ultraviolet spectrum and produces almost no laser-induced fluorescence. Additionally, UV fused silica offers better homogeneity and a lower coefficient of thermal expansion compared to N-BK7. Besides UVFS plano-concave lenses, LBTEK also provides plano-concave lenses made of N-BK7, N-SF11, and calcium fluoride. N-BK7 is the most commonly used material for high-quality optical components, widely applied in visible and near-infrared applications. N-SF11 is characterized by its low Abbe number and high dispersion, while calcium fluoride boasts an extremely high damage threshold and chemical inertness.\n\nLBTEK offers Uncoated UVFS Plano-Concave Lenses as well as lenses with four types of anti-reflection coatings: 245-400nm, 400-700nm, 700-1100nm, and 1100-1650nm. All our lenses undergo precision machining and strict quality control to ensure that LBTEK delivers high-quality lens products to customers at reasonable prices.\u003c\/p\u003e\n\u003ch3\u003ePlano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate Material: UVFS\u003c\/li\u003e\n\u003cli\u003eOperating Wavelength: 200 nm-2.1 μm\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion or Reduction\u003c\/li\u003e\n\u003cli\u003ePre-installed Mechanical Housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Plano-Concave Lenses have a negative focal length and are commonly used for image reduction or beam divergence. Since UVFS has a low Abbe number, LBTEK selects Ultraviolet-Grade Fused Silica as the lens substrate material because UVFS exhibits high transmittance in the deep ultraviolet spectrum and generates almost no laser-induced fluorescence. Additionally, UV fused silica offers better homogeneity and a lower coefficient of thermal expansion compared to N-BK7. All circular lenses from LBTEK come pre-installed with standard lens sleeves or lens mounting adapters. These mechanical components are engraved with product model, type, diameter, and focal length for easy identification of lens parameters by users.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517944217754,"sku":"MCC20307","price":123.65,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CUVFS_EF_BC_8C_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A200_20nm-2.1_20_CE_BCm-FgtyKt1C_l2qXWMaqCyLBbANK_RW_b84616a6-661a-4282-86fd-451a70103bc6.jpg?v=1772672418"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/collections\/2-1_E5_B9_B3_E5_87_B9_E9_80_8F_E9_95_9C_EF_BC_8CCaF2_EF_BC_8C_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A200_20nm-8.0_20_CE_BCm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FlYKcvwWeFd27BCvp6iPvzCtc37.jpg?v=1777788447","url":"https:\/\/waveqvanta.com\/collections\/lbtek-optics-plano-concave-lenses.oembed","provider":"WaveQuanta","version":"1.0","type":"link"}