产 品 说 明                                                                                                                    

Specifications
Material:BK7 Grade A optical glass
Dimension Tolerance:+0.0, -0.2 mm
Clear Aperture:>80%
Deviation:180°±3 arc seconds
Flatness:λ /4 on big surface,
λ /10 on other surfaces
Surface Quality:60-40 scrach and dig
Wavefront Distortion:λ /2 @633nm
Bevel:0.2 mm to 0.5 mm
Coating on input and output sides:Uncoated