... competive price,best service and fast delivery. optical lens Calcium Fluoride WindowHigh Precision Dimension Minimal Transmitted Beam Deviation Excellent ... ApplicationsProjection Optics System Imaging Optics System Optical Measurement Systems SpecificationsMaterial Calcium Fluoride Diameter Tolerance: +0.0, -0.1 Thickness ... Coating Specified by customer CaF2 Window, CaF2 Lens, Calcium Fluoride window,