Factory Standard
- Material: BK7 Grade A optical glass, Corning Fused Silica 7980, JGS1, JGS2
- Clear Aperture: >95%
- Dimension Tolerance: +/-0.1mm
- Angle Tolerance: <5 arc minutes
- Flatness: l/4 l @ 632.8 nm
- Surface Quality: 60-40 scratch and dig
- Coating: On request
Contact us for manufacturing limit or custom specifications.