| Material |
Crystal Quartz  |
| Flatness |
Lambda/2 at 633 per inch |
| Scratch-Dig |
60 - 40 |
| Size tolerance |
± 0.1 |
| Parallelism |
less than 3 arc minutes |
| Clear aperture |
90 % |
| Bevels |
(0.2-0.5)mm x 45° | |
|
|
|
|
 |
Diameter, mm |
Thickness, mm |
Part Number |
| 12.7 |
2 |
W8Q-2 |
| 25.4 |
3 |
W8Q-10 |
| 38.1 |
4 |
W8Q-15 |
| 50.8 |
6 |
W8Q-20 |
| Sizes up to 50 mm diameter x 10 mm thickness are available by special order. | | |
|
