Accession Number : ADD004402

Title :   Passive Optical Transponder.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Salonimer,David J ; Kelley,Buster E

Report Date : 20 Sep 1977

Pagination or Media Count : 4

Abstract : An optical identification and communication system wherein an interrogator sends out a broad illuminator beam outside the visible range. Some of this radiation is collected by the transponder optic and focused on a converting phosphor. The response light is recollimated by the transponder optic and transmitted directly back at the interrogator. The use of co-axial optics along with color filters and an electronic 'shutter' in the interrogator enables the transmitted and received radiation to be separated. (Author)

Descriptors :   *Patents, *Transponders, *Optical equipment, *IFF systems, Passive systems, Interrogators, Ultraviolet radiation, Shutters(Optics), Colors, Optical filters

Subject Categories : Optical Detection and Detectors
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE