| SPECIFICATION | |
| Material | Magnesium Fluoride single crystal |
| Diameter Tolerance | +0.00/-0.10 mm |
| Thickness Tolerance | ±0.2 mm |
| Clear Aperture | >85% |
| Parallelism | <1 arc minute |
| Surface Quality | 60-40 scratch and dig |
| Wavefront Distortion | λ/4 per 25 mm@632.8 nm |
| Protective Bevel | 0.25 mm x45° |
| MaF2 Window | ||
| Part No. | φ (mm) | T (mm) |
| SMW101 | 12.7 | 2.0 |
| SMW102 | 25.4 | 3.0 |
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