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China
Contact Person alex
Fuzhou, Fujian
| Attribute | Commercial | High Precision |
| Material | N-BK7, Fused silica, CaF2 | N-BK7, Fused silica, CaF2 |
| Design Wavelength | **6.1nm | **6.1nm |
| Diameter Tolerance | *0.*0/*0.*0mm | *0.*0/*0.*5mm |
| Thickness Tolerance | +/*0.1mm | +/*0.*5mm |
| Paraxial Focus Length | ±2% | ±0.5% |
| Centration | <3\' | <1\' |
| Clear Aperture | *0% | *0% |
| Surface Quality | ****0 scratch and dig | ***5 scratch and dig |
| Surface Irregularity | < λ/4 | < λ/*0 |
| Bevel | 0.1~0.5mm x *5° | 0.*5~0.2mm x *5° |
