China Optical Flat Bk7 Glass Window Custom Bk7 B270 Optical Glass Window, Find details about China Bk7 Window, Optical Windows 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 |