Sapphire Windows

Material:Anistropic saynthetic sapphire crystal
Orientation:Random
Diameter Tolernce:+0.0,-0.1mm
Thickness Tolernce:± 0.2mm
Clear Aperture:＞80%
Parallelism:3 arc minutes
Surface Quality:80-50 scrtch and dIg
Flatness:λ Per 25mm at 633 nm
Bevel:＜0.25mm × 45°