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 |