Calcium Fluoride Window
Features:
High Precision Dimension
Minimal Transmitted Beam Deviation
Excellent Environmental Durability
Applications:
Projection Optics System
Imaging Optics System
Optical Measurement Systems
Specifications:
Material:Calcium Fluoride
Diameter Tolerance: +0.0, -0.1 
Thickness Tolerance:+/-0.2 
Parallelism <1 arc minutes   
Surface Quality:80-50
Bevel   0.25mm×45 ° 
Clear Aperture    >85% 
Coating   Specified by customer