{"product_id":"double-concave-lens-n-bk7-uncoated-350-nm-2-0-μm-mbcc10610","title":"Double-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm MBCC10610","description":"\u003ch2\u003eDouble-Concave Lens, N-BK7, Uncoated: 350 nm-2.0 μm — Model MBCC10610\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-2.0 μm (uncoated)\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, beam expansion or reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDouble-concave lenses feature two concave surfaces with equal radii of curvature and provide a negative focal length. They are typically used for beam collimation, focal length adjustment, or image reduction\/expansion.\n\nN-BK7 is one of the most commonly used optical materials, well-suited for applications in the visible and near-infrared spectral ranges. LBTEK manufactures a wide range of double-concave lenses from N-BK7 for general-purpose use. In addition, LBTEK also offers double-concave lenses made from N-SF11. With its lower Abbe number, N-SF11 is often used to produce lenses with shorter focal lengths.\n\nLBTEK provides uncoated double-concave lenses as well as AR-coated versions optimized for three wavelength ranges: 400–700 nm, 700–1100 nm, and 1100–1650 nm. All lenses are precisely manufactured under strict quality control, ensuring that LBTEK delivers high-quality products at competitive prices.\u003c\/p\u003e\n\u003ch3\u003eDouble-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-2000 nm\u003c\/li\u003e\n\u003cli\u003eApplication: Imaging, Beam Expansion\u003c\/li\u003e\n\u003cli\u003ePre-installed Mechanical Housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe LBTEK double-concave lens has a negative focal length and is commonly used in applications such as imaging or beam collimation. LBTEK double-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 the visible and near-infrared spectral ranges. All LBTEK circular lenses come pre-installed with standard lens sleeves or lens mounting adapters. These mechanical components are engraved with product model numbers, types, diameters, and focal lengths for easy identification of lens parameters by users.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47517912727706,"sku":"MBCC10610","price":51.7,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-1_E5_8F_8C_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-FjmFRdKWLXsNspomHBuvM3K_kuPo.jpg?v=1772671136","url":"https:\/\/waveqvanta.com\/products\/double-concave-lens-n-bk7-uncoated-350-nm-2-0-%ce%bcm-mbcc10610","provider":"WaveQuanta","version":"1.0","type":"link"}