Calcium Fluoride Biconcave Spherical Lens
Calcium fluoride biconcave spherical lens Product Introduction: Calcium fluoride (CaF2) crystals have high hardness, strong resistance to mechanical and thermal shock, and good transmittance in the ultraviolet, visible, and infrared fields. They are widely used in technology fields such as lasers, infrared optics, ultraviolet optics, and high-energy detectors, especially their excellent optical performance in the ultraviolet band. They are currently known as optical crystals in the ultraviolet cutoff band. A biconcave lens is similar to a flat concave lens, with a negative focal length, but parallel incident light diverges outward. The curvature radii of the two sides of a biconcave lens are equal, and are generally used for beam expansion and projection. Our company can provide a diameter of 2-300mm and a thickness of 0.12-60mm (with an accuracy of 20-10,1/ 10L@633nm )The calcium fluoride biconcave lens has four major processes: rubber disc polishing, high-speed polishin…
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