Accession Number : ADD014621

Title :   Device and Method for Monitoring the Presence of an Object in Space.

Descriptive Note : Patent Application, Filed 3 May 90,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Miller, Walter E , Jr ; Mitchell, Robert R ; Lovelace, Donale E

Report Date : 03 May 1990

Pagination or Media Count : 18

Abstract : An optically transparent cylinder having a hemispherical cavity at one end thereof and containing at least one light source and one light detector inside the hemispherical cavity utilizes the prismatic effect of the cylinder to locate an object in space. The light source and detector are located on a disk whose insertion depth into the cavity and tilt angle inside the cavity can be varied to control the sharpness, width and direction of the conical beam output from the cylinder, the beam searching the space for the location of the desired object. Patent applications. (rrh)

Descriptors :   *DETECTORS, *LIGHT SOURCES, *PATENT APPLICATIONS, *SEARCHING, ANGLES, BEAMS(ELECTROMAGNETIC), CAVITIES, CONICAL BODIES, CYLINDRICAL BODIES, HEMISPHERES, LIGHT, OPTICAL MATERIALS, OUTPUT, PRISMATIC BODIES, TILT, TRANSPARENCIES

Subject Categories : Air Navigation and Guidance
      Guided Missiles

Distribution Statement : APPROVED FOR PUBLIC RELEASE