How Are Zoran Coatings Applied

The Electron Beam Physical Vapor Deposition (EBPVD) technique is our standard coating technique:


Technical Description

  • A heated filament emits the coating electrons, which accelerate in the magnetic field and towards the anode. This high energy bombardment releases the target coating molecules.
  • Traveling outward, they form a thin uniform layer on the lens surface.
  • The pressure of the chamber is of the order 30 ATM.
  • The target lenses are kept on top of the mount.
  • The mount rotates to ensure uniform deposition. Only one side of the lens surface is coated at a time.
  • Coating materials are required “stacked” in a specific order to ensure adherence and durability.