サファイア結晶 | Sapphire Crystal

仕様
| Orientation: | or +/- 5 deg |
|---|---|
| Diameter Tolerance : | +0.0 /-0.1 mm |
| Thickness Tolerance: | +/-0.2 mm |
| Surface Quality: | better than 80/50 scratch/ dig |
| Parallelism: | < 30 arcsec |
| Flatness: | < λ per 25 mm @632.8 nm |
| Perpendicularity: | < 5 arcmin |
| Wavefront Distortion: | < λ/2 @632.8 nm |
| Coating: | Coating upon Request |
