Patents Assigned to Spectral Data Corporation
  • Spectral-zonal color reconnaissance system
    Patent number: RE29085
    Abstract: Multiple images of a common scene are formed by exposure of photographic film primarily to separated zones of the actinic electromagnetic spectrum. The several film images are illuminated individually with lights of selected chromaticities. The chromaticity of the light illuminating at least one of the images is widely separated from the chromaticity associated with the corresponding exposing spectral zone for that image. The illuminated images are displayed in registration for evaluation.
    Type: Grant
    Filed: October 29, 1974
    Date of Patent: December 21, 1976
    Assignee: Spectral Data Corporation
    Inventor: Edward F. Yost, Jr.