
| Materials | BK7 or other optical glass,quartz,sapphire,Ge,Si,ZnSe,CaF2 etc |
| Diameter | 1.5~300mm |
| Radius | R0.8mm-∞ |
| Focal length | -30000mm~+30000mm |
| Center thickness tolerance | +/-0.01mm |
| Diameter tolerance | +/-0.005mm |
| Focal length tolerance | +/-1% |
| Surface accuracy | N=1~3 |
| Irregularity | ΔN=0.1~0.5 |
| Decenter | 3''~1'' |
| Surface quality | 10/5~60/40 |
| Coating | Upon request |
| Application area | Imaging,Lighting,Laser etc |










