18 mm Meniscus Focus Lens, CVD ZnSe CO2 Laser Engraver Focal Lens for 60W 80W Laser Engraver Cutter

FEATURES: High-Efficiency Meniscus Lens: This 18 mm meniscus focus lens from OMTech ensures improved beam concentration, boosting engraving efficiency by around 11% compared to plano-convex lenses. High-Quality CVD ZnSe: This CO2 laser meniscus focusing lens is made of premium CVD ZnSe material to ensure minimal distortion, providing a clear and sharp focal point for your precise laser engraving. Over 99.5% Transmittance Rate: Both sides of the CO2 laser lens are coated with strongly antireflective coatings to achieve a better than 99.5% transmittance rate for infrared light at a wavelength of 10.6 microns. Wide Compatibility: This 18 mm laser engraver lens can be used in OMTech's 60W and 80W CO2 laser engraving and cutting machines for more accurate and efficient production. Easy to Install: The meniscus shape of this laser engraver focal lens allows you to install it easily and correctly onto your machine in the proper orientation. SPECIFICATIONS: Material: Zinc Selenium Diam