Accession Number : ADD007555

Title :   Blazed Surface Relief Holographic Optical Elements.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Terrante,Ronald A

Report Date : 27 May 1980

Pagination or Media Count : 15

Abstract : A method of making a blazed surface relief holographic element is disclosed using controlled orientation of exposing wavelengths on a photo resist surface to a substrate. A blazed surface serves a grating which reinforces diffraction by refraction of the blazed surface. This increases theorically obtainable diffraction effeciency to greater than 90%. Alternate methods of surface formation include holographic exposure and computer mask generation. Different blaze angles can be obtained depending on the angle of incidence. (Author)

Descriptors :   *Holography, *Optical materials, *Surfaces, *Recording systems, Brazing, Refractive index, Substrates, Efficiency, Holograms, Silver compounds, Chromates, Gels, Visible spectra, Quartz, Glass, Resistance, Fabrication

Subject Categories : Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE