Ultra Precision Nanoscale
Optical Elements Customized Expert
| CaF2 (Monocrystal) Processing Capability | ||
| Diameter Range | φ8--φ100㎜ Tolerance: better than ±0.01 | |
| Radius | R8--∞㎜ | |
| D/R | ＜1.3 | |
| Center Thickness/Diameter | ＞1/10 | |
| Edge Thickness | ＞1.5㎜ | |
| CT Tolerance | ±0.02㎜ | |
| Surface Quality | better than 40/20 | |
| Surface Figure | N | ≤2 |
| PV | better than 1/20λ | |
| RMS | better than 1/200λ | |
| Eccentricity | better than 15″ | |
