{"product_id":"medium-film-concave-mirror-n-bk7-cm20-f50-c","title":"Medium Film Concave Mirror, N-BK7, Operating Wavelength: 1100-1650 nm CM20-F50-C","description":"\u003ch2\u003eMedium Film Concave Mirror, N-BK7, Operating Wavelength: 1100-1650 nm — Model CM20-F50-C\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eOperating wavelength 1100-1650 nm, focal length -50 mm, Ø50.8 mm, substrate N-BK7.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eLBTEK dielectric-coated concave mirrors are made of N-BK7 or equivalent material, with a broadband dielectric coating on the concave surface, and can be used for beam collimation, focusing, and imaging. Currently, LBTEK offers dielectric-coated concave mirrors in three wavelength ranges: 400-750 nm, 750-1100 nm, and 1100-1650 nm. The average reflectance of these mirrors is greater than 99% within the specified wavelength range. Additionally, the dielectric-coated concave mirrors are available in seven different focal lengths ranging from -25 mm to -500 mm, with sizes of one inch and two inches. In addition to standard products, LBTEK also provides custom solutions for size, focal length, and wavelength range. If needed, please contact LBTEK technical support.\u003c\/p\u003e\n\u003ch3\u003eMedium Film Concave Mirror, N-BK7, Operating Wavelength: 1100-1650 nm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOperating Wavelength: 1100-1650 nm\u003c\/li\u003e\n\u003cli\u003eReflectivity: Ravg \u0026gt; 99%\u003c\/li\u003e\n\u003cli\u003eFocal Length: -25 mm~-500 mm\u003c\/li\u003e\n\u003cli\u003eBackside Frosted\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Dielectric Coating Concave Mirrors use N-BK7 or equivalent material as the substrate, with a broadband dielectric coating on the concave surface (ground back surface), and can be used for beam collimation, focusing, and image. This mirror has high reflectance (Ravg \u0026gt; 99%) in the 1100-1650 nm wavelength range. Currently, LBTEK offers Dielectric Coating Concave Mirrors in two sizes: one inch and two inches, which can be mounted in one-inch or two-inch Mirror Mounts. The Dielectric Coating Concave Mirror offers seven Focal Lengths (f) ranging from -25 mm to -500 mm. In addition to standard products, LBTEK also provides custom solutions for size, focal length, and wavelength range. If needed, please contact LBTEK Technical Support.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":67700124287130,"sku":"CM20-F50-C","price":265.32,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/CM20-F50-C-product.jpg?v=1791452454","url":"https:\/\/waveqvanta.com\/products\/medium-film-concave-mirror-n-bk7-cm20-f50-c","provider":"WaveQuanta","version":"1.0","type":"link"}