Accession Number : ADD008627

Title :   Computer Generated Hologram Mask.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Holoway,Harry W

Report Date : 21 Jan 1981

Pagination or Media Count : 12

Abstract : A method of making hologram masks for arbitrary shapes is disclosed. The masks are generated by calculating point by point the surface contour of the hologram desired for the incoming wavefront and the desired wavefront. Calculation permits a mass image to be generated which can be photo-reduced to a desired size. The mask permits holograms to correct aberrated wavefronts for any arbitrary distorting objects desired. The use of thin holograms permits the hologram to avoid wavelength and angle of incidence limitations. (Author)

Descriptors :   *Patent applications, *Holography, *Masks, *Computer aided design, Contours, Points(Mathematics), Grids(Coordinates), Surfaces, Wavefronts, Thin films, Aerodynamic characteristics, Distortion, Vector analysis

Subject Categories : Holography

Distribution Statement : APPROVED FOR PUBLIC RELEASE