Patents Represented by Attorney Sameul Cohen

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  • Double modulation holographic recording technique
    Patent number: 4116526
    Abstract: By simultaneously illuminating an area of a hologram recording medium through an object transparency situated in substantially direct contact with the recording plane of the hologram recording plane with each of two angularly-displaced beams of coherent light, double modulation is achieved. The disclosed technique is particularly applicable to the serial recording on a single hologram of each of a stereo pair of object transparencies, which, on playback, provides a stereoscopic reconstructed image which is directly viewable by an observer.
    Type: Grant
    Filed: August 16, 1976
    Date of Patent: September 26, 1978
    Assignee: RCA Corporation
    Inventors: Burton Ross Clay, Gardner Thomas Burton