China Optical Flat Bk7 Glass Window Custom Bk7 B270 Optical Glass Window, Find details about China Optical Windows, Bk7 Glass Window from Optical Flat Bk7 Glass Window Custom Bk7 B270 Optical Glass Window
Diameter | 0.2-300mm |
Thickness | 0.1-100mm |
Dimension tolerance | +/-0.02mm |
Surface quality (scratch & dig) | 20/10 or better |
Clear aperture | >85%, >90% |
Surface accuracy | λ/10 |
Parallelism | <30 arc sec |
Bevel | 0.1~0.3mm x 45 degree |
Coating | AR, BBAR or Custom |