Device for detecting infrared radiation

Details Device for detecting infrared radiation Device for detecting infrared radiation

1981-07-21

1983-12-13

Howell, Janice A.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250353, G01J 100

Patent

active

044206887

ABSTRACT:
A detector device for limiting background noise detected by a cooled infrared detector. In order to delimit the angle of view of the detector, the device comprises a reflecting deposit formed externally of the cooling device on one face of a transparent element interposed on the receiving path. The deposit can be located on the outer face of the window of the cooling device within which the detector is mounted on a cold table forming a spherical mirror. The complete assembly is optically combined so as to ensure that the radiation issuing from the detector outside the angle of view is returned to the detector.

REFERENCES:
patent: 3770958 (1973-11-01), Krakow
patent: 3875408 (1975-04-01), Pusch
patent: 4011452 (1977-03-01), Meyers
patent: 4041314 (1977-08-01), Oppelt

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