Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1964-09-21
1976-04-13
Tubbesing, T. H.
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
250333, 313388, H01J 3149, G01J 100
Patent
active
039506452
ABSTRACT:
1. An infrared imaging device comprising, cooling means for lowering the temperature of the device, a wafer of preselected infrared sensitive material, a layer of thin infrared transparent electrically conductive material deposited on one side of said wafer, a wire mosaic, said wire mosaic in intimate contact with the remaining side of said wafer, opaque material filling a preselected area between the wires of said wire mosaic, silver paste interposed between said wafer and the tips of the wires of said wire mosaic, a photoemissive surface deposited on one side of said wire mosaic, an evacuated tube having a grid, focusing means, and a phosphor screen at one end, said wire mosaic forming the other end of said tube, lamp means for illuminating said photoemissive surface thereby providing free electrons, voltage accelerating means whereby said free electrons are accelerated toward said phosphor screen and focussed on said screen in a predetermined manner, fixed bias means whereby free electrons are confined between said grid and said photoemissive cathode whereby the resistance of said infrared sensitive wafer cooperating with grid current flow reduces said bias permitting flow of electrons according to infrared radiation impinging on said wafer.
REFERENCES:
patent: 2739244 (1956-03-01), Sheldon
patent: 2816954 (1957-12-01), Huffman
patent: 2824235 (1958-02-01), Hahn et al.
patent: 2951175 (1960-08-01), Null
patent: 3060338 (1962-10-01), Selby et al.
patent: 3067283 (1962-12-01), Petritz et al.
patent: 3258602 (1966-06-01), Promish
patent: 3274380 (1966-09-01), Distel
patent: 3293483 (1966-12-01), Engel
Keyes Robert J.
Rotstein Jacob
Buczinski S. C.
Horn, Jr. Robert J.
Massachusetts Institute of Technology
Santa Martin M.
Smith, Jr. Arthur A.
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