Zinc Selenide Focus Lens for Engraving and Cutting Machines - 10.6 um Wave Length (D18/F76.2mm)

Made with premium PVD zinc selenide materials, this lens ensures a smaller focused point and can withstand greater power, improving the engraving and cutting efficiency of your machine. With an anti-glare film, this lens features over 99% transmittance at a device wavelength of 10.6um, ensuring optimal performance for your machine applications. Double-sided anti-glare coating and cylindrical polishing significantly increase the transmittance of machine components while effectively reducing stray light for accurate results. Designed with strict tolerances: ±1% focal length tolerance, ±0.1mm thickness tolerance, and profile tolerance of +0.0/-0.1mm, ensuring superior accuracy in your projects. Easy installation with clear guidelines to ensure the convex side is mounted upwards; includes maintenance tips to prevent overheating and ensure longevity of the lens.