A thin layer of material that, when applied to a lens, increases its transmittance and reduces its reflectance.

A thin coating of a material, which reduces the light reflection and increases light transmission, applied to a photovoltaic cell surface.

Dielectric thin film coating applied to an optical material to increase the transmittance by reducing the surface reflectance.

a thin film coating placed on a lens to minimize reflection from the surface of the lens

A thin coating of a material applied to a photovoltaic cell surface that reduces the light reflection and increases light transmission.

A thin film of magnesium flouride deposited upon a glass surface by vaporization of the metal in vacuum.