Description of Optical Concave Lens
| Parameters |
Units |
Data |
|
Diameter |
mm |
1.5-300 |
|
Diameter Tolerance |
mm |
+/-0.02 |
|
Thickness Tolerance |
mm |
0+/-0/02 |
|
Centering Error |
Arc minute |
undefined3 |
|
Surface Quality |
|
20-10 |
|
Surface Figure |
|
λ/10@633nm |
|
Clear Aperture |
|
More than 90% |
|
Materials |
|
Optical crystal such as glass, quartz, calcium fluoride, germanium, silicon |





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