Infrared detector

Details Infrared detector Infrared detector

1990-03-13

1991-05-14

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250332, G01J 506

Patent

active

050158570

ABSTRACT:
In a multi-element infrared detector a light guide is arranged in front of each detector element, the dimensions of this light guide causing attenuation of radar radiation. Each light guide is formed by a light guiding passage having reflecting and electrically conductive inner walls. The light guiding passages are formed in a passage plate. The surface of the passages are electrically conductive and connected to signal ground. A light stop plate is arranged in front of the passage plate. This light stop plate has light stop apertures in alignment with the light guiding passages. The apertures have non-reflecting inner surfaces. The light stop plate reduces stray radiation.

REFERENCES:
patent: 4041314 (1977-08-01), Oppelt
patent: 4591717 (1986-05-01), Scherber
patent: 4609820 (1986-09-01), Miyamoto
patent: 4812653 (1989-03-01), Comey
patent: 4814620 (1989-03-01), Comey et al.
patent: 4918929 (1990-04-01), Chudy et al.
Article Titled: Effects of Perturbing Magnetic Fields on the Performance of Photoelectronic Sensors, Rev. Sci. Instrum. 53 (6), 1982, 735-748.

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