ZnSe is a kind of popular infrared material. Its optical bandwidth can be 0.6-20 μ m. Its absorption in infrared light is low, and can also pass visible light. ZnSe is mainly used in infrared detector and laser systems.
Opticreate produces high-precision ZnSe window and lens, could do AR coating,HR coating and Beamsplitter coating according to customers' requirements.
| Material | PVD ZnSe, CVD ZnSe |
| Diameter tolerance | +0.0/-0.05mm |
| Diameter | D2-D300mm |
| Focal length tolerance | ±2%（for lens） |
| Centration | ≤0.01mm(high precision 0.005mm) |
| Power | 1λ |
| Irregularity | λ/4 |
| Surface Quality | 40-20 |
| Bevel | 0.25 mm × 45° |
| Coating | AR Coating，HR coating and Beamspiltter coating |
