| Diameter (mm) | Other on request |
| Dimensional Tolerance (mm) | ± 0.1 |
| clean Clear Aperture(%) | 90% |
| Thickness (mm) | Other on request |
| Thickness Tolerance (mm) | ± 0.20 |
| Surface Accuracy (λ ) | 1/4λ |
| Surface Quality | 60-40 |
| Parallelism (arcminutes) | 1 |
| Substrate | CVD Laser Grade ZnSe |
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