Calcium Fluoride CaF2 Optical Window & Plate

Calcium fluoride CaF2 has a high transmittance between ultraviolet to mid-infrared (250nm~7um), so it is widely used in the manufacture of prisms, windows and lenses, etc., in some applications with a wide spectral range, it can be used directly without coating, especially it has small absorption and high laser threshold, which is very suitable for use in excimer laser optical systems. The calcium fluoride (CaF2) lens or window produced by our company has a diameter range of 5~150mm, a surface accuracy of usually up to 40/20, and a surface flatness of: λ/10@633nm (the ratio of thickness to diameter of the lens needs to meet the processing ratio).