Zinc Selenide Lens
Due to its low absorbance at infrared wavelengths and visible light transmission, zinc selenide (ZnSe) is a material for lenses, windows, output couplers, and beam expanders. For high-power applications, the key is to carefully control the material's volume absorption and internal defect structure, employ minimally damaging polishing techniques, and use higher quality optical thin film coatings
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Overview
Specifications
| Parameter | Value |
|---|---|
| Lens Aperture Range | 3mm-70mm |
| Edge Thickness Range | ≥0.7mm |
| Center Thickness Range | ≥1mm |
| Sag Processing Range | ≤21mm |
| Aperture to Center Thickness Ratio | 17 |
| Surface Flatness Pv | 0.1μm |
| Roughness Ra | 4nm-10nm |
Datasheet
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