Material | Optical Glass |
Surface Flatness | < λ/5 @ 633nm |
Scratch/Dig | < 40/20 (both sides) |
Eccentricity | ≤ 1arcmin |
Focal Length Tolerance | < ± 1% |
Diameter Tolerance | < + 0.00/ - 0.02mm |
Thickness Tolerance | < ± 0.05 |
Clear Aperture | ≥ 95% of diameter |
Coating | AR OR BBAR |
Diameter Range | 5~260mm |