It is very important for good Reflection and Transmission and also protect the surface of the lens. The lens is Coated by Vacuum Evaporation. There are two types of coating in our factory. Single Coating : In single coating only MgF2 is use as a coating material. Now we have 25 (Twenty five) Single Coating machines. Multi Coating : Lot of chemicals are use as a coating materials. Now we making three to five layers Coating which is very useful for high resonation purpose such as Digital

COATING MEASURING INSTRUMENT