| Meniscus Spherical Lenses | |
| Material | BK7 glass, UV grade fused silica, CaF2 |
| Dimension Tolerance | +0.0/-0.2mm |
| Thickness Tolerance | ±0.2mm |
| Design Wavelength | 546.1nm |
| Surface Quality | 60/40 scratch and dig |
| Clear Aperture | >90% |
| Flatness | N<3(0.5)@632.8nm |
| Centration | <3 arc min |
| Focal Length Tolerance | ±2% |
| Chamfer | Protective <0.5mm×45° |
| Coating | According to your requirement. |
