Zinc Selenide focus lens [1"/2"/2.5"/4"] for CO2 Laser Cutting & Engraving Machines
6000
7000
![Zinc Selenide focus lens [1"/2"/2.5"/4"] for CO2 Laser Cutting & Engraving Machines - BesCutter Laser Cutters and Engravers](http://bescutter.com/cdn/shop/products/33_800x.jpg?v=1638459700)
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![Zinc Selenide focus lens [1"/2"/2.5"/4"] for CO2 Laser Cutting & Engraving Machines - BesCutter Laser Cutters and Engravers](http://bescutter.com/cdn/shop/products/4_800x.jpg?v=1638459700)
![Zinc Selenide focus lens [1"/2"/2.5"/4"] for CO2 Laser Cutting & Engraving Machines - BesCutter Laser Cutters and Engravers](http://bescutter.com/cdn/shop/products/2_077e0b41-f2b3-40ec-aa1b-81fbeb523fc0_800x.jpg?v=1638459700)
![Zinc Selenide focus lens [1"/2"/2.5"/4"] for CO2 Laser Cutting & Engraving Machines - BesCutter Laser Cutters and Engravers](http://bescutter.com/cdn/shop/products/3_15d0407f-0753-4ad0-a14d-3176b332cc65_800x.jpg?v=1638459700)
Zinc Selenide focus lens [1"/2"/2.5"/4"] for CO2 Laser Cutting & Engraving Machines
6000
7000
TECH SPECIFICATIONS
| Focal Length: | 1.5", 2", 2.5", 4" |
| Diameter: | 20 / 25 mm |
| Thickness: | 2.5 / 3 mm |
| Material: | Zinc Selenide |
| Light Transmittance: | Up to 99.8% |
| Max Power Capacity: | 300W |
| AR Coating Reflectivity: | <0.3% |
| Wavelength: | 10.6 um |
| Diameter Tolerance: | (+-) 0.1mm |
| Focus Length Tolerance: | (+-) 3% |
HIGHLIGHTS
* Its high transmittance increases the high temperature resistance.
* Meniscus lenses reduce the spherical aberration increasing cutting and engraving precision.
* Reinforced double-sided coating technology for a longer lifespan.
