... sputtering, and multi arc according to your require Optical lens coating is one of the major application of the vacuum ... machine can produce various products like accuracy optical lens, glasses lens, IR filter, AR coating, wide band filter, cold reflector, ITO conductive film, CPL, ... material like SiO2, MgF, Al2O3, ZrO... For plastic lens coating, suggest use the Polycold system to reduce the vacuum ...