Zinc Selenide Focusing Lens for Engraving and Cutting Machines - 10.6 µm Wavelength (D20/F25.4mm)

This lens is made of high quality PVD zinc selenide materials and ensures a smaller focus point as well as higher performance, increasing the efficiency of your machine engraving and cutting performance. This lens features an anti-reflective coating and provides over 99% light transmission at a device wavelength of 10.6µm, ensuring optimal performance for your machine applications. The double-sided anti-reflective coating and cylindrical polish significantly increase the light transmission of the machine components while effectively reducing stray light to achieve precise results. Engineered with strict tolerances: focal length tolerance of ±1%, thickness tolerance of ±0.1mm and profile tolerance of +0.0/-0.1mm to ensure the highest accuracy in your projects. Easy to install thanks to clear guidelines that ensure that the convex side is mounted upwards; includes maintenance tips to prevent overheating and ensure long lens life.