Accession Number : ADD006852

Title :   Quadrant Detection System.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

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

Report Date : 29 Jan 1980

Pagination or Media Count : 3

Abstract : This patent discloses a quadrant detection system having an objective lens and a holographic lens positioned at the back focal plane of the objective lens. Four photoelectric detectors are positioned on the side of the holographic lens remote from the objective lens. The holographic lens has lens elements in four quadrants with each quadrant having a focal point corresponding to the position of the photoelectric detectors. (Author)

Descriptors :   *Patents, *Optical detectors, *Holography, Optical lenses, Photoelectric effect, Sensitivity

Subject Categories : Holography
      Infrared Detection and Detectors
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE