| Parameters | Specification |
| Material | Optical Glass |
| Dimension | 1mm-300mm |
| Dimension tolerance | +0.0/-0.05mm or customized |
| Focus length tolerance | ±1% |
| Eccentricity | <3 arc or customized |
| Surface quality | 60-40 ~10-5 |
| Accurancy | <λ/2-λ/4, <λ/8-λ/10 |
| Coating | AR, BBAR, High Reflect etc |
| Clear aperture | >95% |
| Chamfer | 0.2mm*45° |