Product model table
(Find the product number of the product you want in the form, and select the product number from the above options to purchase.)
Material | BK7 |
Dimension Tolerance | +0/-0.2mm |
Thickness Tolerance | ±0.2mm |
Surface Quality | 60/40 scratch and dig |
Clear Aperture | >90% |
Flatness | N<3(0.5)@632.8nm |
Centration | <3 arc minutes |
Focal Length Tolerance | ±2% |
Chamfer | Protective <0.5mmx45° |