| Parameter | Lens Standard Specification |
| Material | Glass, Fused Silica etc. |
| Diameter | 2~180mm |
| Diameter Tolerance | +/-0.01mm |
| Decenter | 3' |
| Flatness(in 25mm area) | N=3, △N=0.1 |
| Surface Quality | 40-20 |
| Chamfer | C0.1mm, 45° |
| Coating | AR film, Reflection film, Splitter film etc. |
* Remark：Customized is available | |
