Meniscus lens for smaller spot size
High IR transmission Zinc Selenide (ZnSe) substrates
Approved and used by leading OEMs
| Common Specification | |
| Material | ZnSe |
| Dimension tolerance | ± 0.10 mm |
| Diameter tolerance | +0/-0.1mm |
| Thickness tolerance | ± 0.20 mm |
| Clear Aperture | >90% |
| Surface quality | S/D 60-40 |
| Surface Flatness | lambda/2 per 1inch |
| Parallelism | <1 arc minute |
| Coating | AR Coated |
| AR Coated | |
