optical prism
Material:optical glass
guarantee the quality
reasonable delivery
small order is acceptable

Material: Bk7 grade a optical glass
Dimension tolerance: +0.0/ -0.1mm
Clear aperture: >85%
Deviation: <5 sec

1) Material: BK7 grade A, or other optical glass
2) Diameter tolerance: +0.0/ ­-0.1mm
3) Angle tolerance: 90°×3=±0.5  Integral tolerance 5''-3'
4) Surface quality: 60 / 40, 40/20
5) Flatness: γ/2 per inch at 633nm
6) Bevel: 0.1 - 0.5mm
7) Clear aperture:>80%