Zinc Selenide Lens
Zinc selenide has high resistance to thermal shock, making it an optical material for high-power CO2 laser systems. Its hardness is only two-thirds that of multispectral ZnS, so it is soft and easily scratched. Its high refractive index also requires a hard antireflection coating for protection and high transmittance.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Standard-Surface Power N | 5 |
| Standard-Irregularity △N | 1 |
| Standard-Surface Finish | 80/50 |
| Standard-Center Thickness Difference | 0.05 |
| Standard-Centration Error | 5′ |
| Standard-Coating | According to Customer Requirements |
| Standard-Size Range | D3-D260mm |
| Precision-Surface Power N | 2 |
| Precision-Irregularity △N | 1/2 |
| Precision-Surface Finish | 60/40 |
| Precision-Center Thickness Difference | 0.02 |
| Precision-Centration Error | 2′ |
| Precision-Coating | According to Customer Requirements |
| Precision-Size Range | D3-D260mm |
| Ultra-Precision-Surface Power N | 1/2 |
| Ultra-Precision-Irregularity △N | 1/4 |
| Ultra-Precision-Surface Finish | 40/20 |
| Ultra-Precision-Center Thickness Difference | 0.01 |
| Ultra-Precision-Centration Error | 30″ |
| Ultra-Precision-Coating | According to Customer Requirements |
| Ultra-Precision-Size Range | D3-D260mm |
Applications
Datasheet
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Supplier Information
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