Accession Number : ADD006833

Title :   Holographic Field Lens Detector.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Williamson,Tommy L ; Rose,Harold W

Report Date : 01 Jan 1980

Pagination or Media Count : 6

Abstract : This patent discloses a holographic field lens detector system having an objective lens for focusing incoming light from a distant illuminating source upon a holographic lens positioned at the back focal plane of the objective lens. The aperture of the objective lens is simultaneously imaged on four detectors positioned in back of the holographic lens and on the four sides of holographic lens. The output of opposite pairs of detectors are fed to sum and difference circuits with the output of the sum and difference circuits being supplied to divide circuits to provide X and Y position information for the illumination on the holographic lens. (Author)

Descriptors :   *Patents, *Holography, *Optical lenses, Optical detectors, Apertures

Subject Categories : Holography
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE