Specifications:
|
Material |
BK7 glass,UV grade fused silica,CaF2 |
|
Diameter Tolerance |
+0.0,-0.1mm |
| Center Thickness |
+/-0.2mm |
 |
|
Bevle |
<0.25mm |
|
Paraxial Focal Length |
+/-1% (EFL<1m)
+/-2%（EFL>1m) |
|
|
Surface Quality |
60-40 scrath and dig |
|
Clear Aperture |
|
|
Coating |
Uncoated, AR, HR, PR Coating, etc. | |
|
