1、Using domestic zinc selenide, the light transmittance is 99.5%, the coating is firm and durable2、The laser focusing lens is widely used in laser processing and, an indispensable accessory for laser engraving machines, laser marking machines, and laser cutting machines3、The focusing lens is the optical path accessory of laser machine. Finally achieve the purpose of engraving or cutting after the reflecting lens is used to focus the beam4、The substrate of the silicon reflective lens is silicon, which has good optical and thermal properties. After the reflective film is coated on the surface of the silicon, greatly improved reflectivity, about 99%, and the loss of light caused by reflection is almost avoided5、Come with good optical thermal properties, high reflectivity, gold‑plated film with scratch resistance. Adapt to work in harsh environments with long service life Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.