| Product name | Sapphire Optical Windows |
| Material | Sapphire |
| Shape tolerance | 0.0/-0.2mm |
| Thickness tolerance | ±0.1mm |
| Surface type | λ/10 |
| Parallelism | <3' |
| smoothness | 60-40 |
| Effective aperture | >90% |
| Inverted side | <0.3x45° |
| Plating film | AR, reflective film, etc. |
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