{"title":"Plano-Concave Lens, UV Fused Silica, Uncoated: 200 nm-2.1 μm","description":"\u003cp\u003eBrowse 15+ plano-concave 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-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"},{"product_id":"plano-concave-lens-uv-fused-silica-uncoated-200-nm-2-1-μm-mcc20304","title":"Plano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm MCC20304","description":"\u003ch2\u003ePlano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm — Model MCC20304\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 200 nm-2.1 μm, focal length -20.0 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":47517944283290,"sku":"MCC20304","price":127.19,"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_2a70ab34-f0c1-4326-9508-860d728621ee.jpg?v=1772672423"},{"product_id":"plano-concave-lens-uv-fused-silica-uncoated-200-nm-2-1-μm-mcc20305","title":"Plano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm MCC20305","description":"\u003ch2\u003ePlano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm — Model MCC20305\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 200 nm-2.1 μm, 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\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":47517944381594,"sku":"MCC20305","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_f2acaf8f-58ea-4090-9770-34c642e31801.jpg?v=1772672429"},{"product_id":"plano-concave-lens-uv-fused-silica-uncoated-200-nm-2-1-μm-cc20613","title":"Plano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm, Unmounted CC20613","description":"\u003ch2\u003ePlano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm, Unmounted — Model CC20613\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 200 nm-2.1 μm, focal length -100.0 mm, Ø25.4 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, Unmounted\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\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 Ultraviolet-Grade 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":47517944479898,"sku":"CC20613","price":123.65,"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_8CUVFS_EF_BC_8C_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A200_20nm-2.1_20_CE_BCm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FnAdbG3OIDgqcEB0-UTva3Qj0lf.jpg?v=1772672434"},{"product_id":"plano-concave-lens-uv-fused-silica-uncoated-200-nm-2-1-μm-cc20317","title":"Plano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm, Unmounted CC20317","description":"\u003ch2\u003ePlano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm, Unmounted — Model CC20317\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, Unmounted\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\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 Ultraviolet-Grade 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":47517944512666,"sku":"CC20317","price":110.45,"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_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A200_20nm-2.1_20_CE_BCm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FnAdbG3OIDgqcEB0-UTva3Qj0lf_a6502440-8b9f-49e5-b34c-36e021eea763.jpg?v=1772672439"},{"product_id":"plano-concave-lens-uv-fused-silica-uncoated-200-nm-2-1-μm-cc20313","title":"Plano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm, Unmounted CC20313","description":"\u003ch2\u003ePlano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm, Unmounted — Model CC20313\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, Unmounted\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\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 Ultraviolet-Grade 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":47517944578202,"sku":"CC20313","price":110.45,"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_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A200_20nm-2.1_20_CE_BCm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FnAdbG3OIDgqcEB0-UTva3Qj0lf_c864a465-2ffd-40f0-bdea-ede3be34b753.jpg?v=1772672445"},{"product_id":"plano-concave-lens-uv-fused-silica-uncoated-200-nm-2-1-μm-cc20312","title":"Plano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm, Unmounted CC20312","description":"\u003ch2\u003ePlano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm, Unmounted — Model CC20312\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, Unmounted\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\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 Ultraviolet-Grade 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":47517944643738,"sku":"CC20312","price":110.45,"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_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A200_20nm-2.1_20_CE_BCm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FnAdbG3OIDgqcEB0-UTva3Qj0lf_6f0ae51a-b341-4308-ac70-843340562cf0.jpg?v=1772672450"},{"product_id":"plano-concave-lens-uv-fused-silica-uncoated-200-nm-2-1-μm-cc20310","title":"Plano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm, Unmounted CC20310","description":"\u003ch2\u003ePlano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm, Unmounted — Model CC20310\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, Unmounted\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\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 Ultraviolet-Grade 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":47517944774810,"sku":"CC20310","price":110.45,"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_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A200_20nm-2.1_20_CE_BCm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FnAdbG3OIDgqcEB0-UTva3Qj0lf_4899cea8-c2ba-43b9-b347-44bcc0ac98cd.jpg?v=1772672455"},{"product_id":"plano-concave-lens-uv-fused-silica-uncoated-200-nm-2-1-μm-cc20307","title":"Plano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm, Unmounted CC20307","description":"\u003ch2\u003ePlano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm, Unmounted — Model CC20307\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, Unmounted\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\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 Ultraviolet-Grade 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":47517944840346,"sku":"CC20307","price":110.45,"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_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A200_20nm-2.1_20_CE_BCm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FnAdbG3OIDgqcEB0-UTva3Qj0lf_1c2a1909-b4fa-49d5-bac6-21815af11260.jpg?v=1772672461"},{"product_id":"plano-concave-lens-uv-fused-silica-uncoated-200-nm-2-1-μm-cc20304","title":"Plano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm, Unmounted CC20304","description":"\u003ch2\u003ePlano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm, Unmounted — Model CC20304\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 200 nm-2.1 μm, focal length -20.0 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, Unmounted\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\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 Ultraviolet-Grade 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":47517944938650,"sku":"CC20304","price":115.1,"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_8CUVFS_EF_BC_8C_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A200_20nm-2.1_20_CE_BCm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FnAdbG3OIDgqcEB0-UTva3Qj0lf_811c396d-2d40-432f-9721-f2b12e51ea8c.jpg?v=1772672467"},{"product_id":"plano-concave-lens-uv-fused-silica-uncoated-200-nm-2-1-μm-cc20305","title":"Plano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm, Unmounted CC20305","description":"\u003ch2\u003ePlano-Concave Lens, UVFS, Uncoated: 200 nm-2.1 μm, Unmounted — Model CC20305\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 200 nm-2.1 μm, 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\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, Unmounted\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\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 Ultraviolet-Grade 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":47517945004186,"sku":"CC20305","price":110.45,"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_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A200_20nm-2.1_20_CE_BCm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FnAdbG3OIDgqcEB0-UTva3Qj0lf_cd7eebf2-058e-462c-8389-b86f01337f1e.jpg?v=1772672472"}],"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_8CUVFS_EF_BC_8C_E6_9C_AA_E9_95_80_E8_86_9C_EF_BC_9A200_20nm-2.1_20_CE_BCm_EF_BC_8C_E6_9C_AA_E5_AE_89_E8_A3_85-FnAdbG3OIDgqcEB0-UTva3Qj0lf.jpg?v=1777788533","url":"https:\/\/waveqvanta.com\/collections\/lbtek-optics-l4-plano-concave-lens-uv-fused-silica-uncoated-200-nm-21-m.oembed","provider":"WaveQuanta","version":"1.0","type":"link"}