Accession Number : ADD012610

Title :   Modified Liquid Crystal Television as a Spatial Light Modulator.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Gregory,Don A ; Guenther,Bob D

Report Date : 10 Nov 1986

Pagination or Media Count : 14

Abstract : The spatial light modulator utilizes a modified liquid crystal television for modulating a laser beam so as to produce a transformed hologram image on a film plate which is identical with the video information being fed into the liquid crystal TV. Once a image film has been produced the film is developed and placed back in the system so that the system will act as a comparator and tracking device. With the reference beam blocked and a new video input fed into the liquid crystal TV the system now will have an output only when the scene on the TV is identical to the scene recorded on the film. Indicator means give a signal output from this comparison that is identical. (Patent Applications)

Descriptors :   *PATENT APPLICATIONS, *LIGHT MODULATORS, *LIQUID CRYSTALS, SPATIAL FILTERING, TELEVISION SYSTEMS, OPTICAL CORRELATORS, COMPARATORS, IMAGE PROCESSING, OPTICAL TRACKING, PHOTOGRAPHIC ANALYSIS

Subject Categories : Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE