| Specifications |
| Material: |
BK7 Grade A optical glass |
|
| Dimension Tolerance: |
+0.0, -0.2 mm |
| Clear Aperture: |
>80% |
| Deviation: |
180°±3 arc seconds |
| Flatness: |
λ /4 on big surface,
λ /10 on other surfaces |
| Surface Quality: |
60-40 scrach and dig |
| Wavefront Distortion: |
λ /2 @633nm |
| Bevel: |
0.2 mm to 0.5 mm |
| Coating on input and output sides: |
Uncoated | |
|
