ZnSe Lens Dia 20mm FL 50.8mm for CO2 Laser Engraving Cutting Machine

• Mateial: CVD Znse
• Diameter: 20mm (0.79")
• Focal Length: 50.8mm (2")
• Thickness: 2mm (0.08")
• Coat: AR Coated at 10.6um
• Usage: Replace DIY Part for CO2 Laser Engraving Cutting Machine
• Origin: China

Function:
1. Use high-quality imported zinc selenide to withstand high-power lasers.
2. The double-surface film is firm, wipe-resistant, not easy to fall off, reduces stray light on the optical surface, and enhances the service life.
3. The preferred substrate is finely processed through cutting, polishing, coating and other processes, with high-temperature resistance and strong laser resistance.
4. Double-sided transparent coating, and cylindrical polishing increase the amount of light transmission of the components, reducing or eliminating the stray light of the system.
5. The high-quality substrate and superb coating reduce the loss of light and the light transmittance can reach 99.8% and the work efficiency is higher.
6. It helps to improve the cutting and engraving speed and the ability to withstand back reflections.