... the quality of film layers.It is suitable for coating antireflection coating, optical filter, multicolor, red, yellow, green and ... vacuum≤5x10-4PaEvaporation source2 groups resistance evaporation, single power source, power: 5WE-beam,high pressure, adjustable, 6KV-10KV,power: 6KWIon sourceKerr source,double ... be designed according to customers request Optical Vacuum Coating Machine for lens