Description
| Material | BK7 Grade A optical glass, UV grade fused silica |
| Dimension Tolerance | +0.0/-0.2mm |
| Thickness Tolerance | ±0.2mm |
| Surface Quality | Standard: 60/40 High Precision: 20/10 |
| Clear Aperture | >90% |
| Wavefront Distortion | Standard: <λ@633nm per 25mm High Precision: <λ/10@633nm per 25mm |
| Parallelism | Standard:<1 arc minute High Precision:<10 arc seconds |
| Chamfer | Protected<0.5mmx45° |
| Coating | Uncoated, available |
