<ul><li>Features:Cu copper reflector mirror with good optics characteristics is widely used for CO2 laser engrave machine. Dielectric film reflector is a new total reflection mirror with the single crystal Si as substrate and coating dielectric. material on it to reflect CO2 laser beam .It has advantage of a high reflectivity .Light weight ,wipe-resistan and resistant to oxidation and etc.</li><li>Superb Coating Process: Double-sided Solid Coating. Wiping Resistance. Long Working Life.</li><li>High Precision Process: Excellent Substrate. Precision Slicing, Polishing, Grinding Processes. Adapt to higher operating temperatures.</li><li>High Transmittance: High Quality Material and Exquisite Coating. Reduce the Loss of Laser. Higher Work Efficiency.</li></ul> Welcome to my store, we will provide you with high-quality products and high-quality services, if you have any questions about the products, you can contact us, we will reply you within 24 hours! GaAs Co2 laser Focus lens,Dia 20mm,FL 50.8mm Feature: Diameter :20mm Focal length :50.8mm/2" Thickness :2mm Material :GaAS Structure :Meniscus lenses(wavelength 10.6um) Usage: Apply for co2 laser cutting and engraving Notice: Due to different monitors, there may be some color difference, which is normal.

CO2 Laser Cutter Focus Focal Lens 20MM GaAs Laser Focusing Lens, 50.8mm Focusing