Matrix device for the detection of light radiation with individu

Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive

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29572, 156643, 156644, 156652, 156655, 156667, 250353, 2505151, 427164, 427264, 427271, 428138, 428142, 430 5, 430321, G01J 100, B44C 122, C03C 1500, B05D 506

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046755250

ABSTRACT:
The invention relates to a matrix device for the detection of light radiation with individual cold screens integrated into a substrate and to its production process. This device comprises detectors arranged in matrix-like manner and defined in a detection material, a substrate which is transparent to the radiation to be detected and on which is epitaxied the detection material and provided in its upper part with blind holes distributed in matrix-like manner, each hole being positioned facing a detector, a layer of anti-reflecting transparent material covering the bottom of the holes and a layer of a material absorbing the radiation covering the upper face of the substrate and the walls of the holes.
The invention more particularly applies to an infrared imaging system.

REFERENCES:
patent: 3633031 (1972-01-01), Pesce et al.
patent: 3963926 (1976-06-01), Borrello
patent: 4276335 (1981-06-01), Lemmond
patent: 4448865 (1984-05-01), Bohlen et al.
Patents Abstract of Japan, vol. 6, No. 248, 7.12.1982.

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