Cooled photodetector

Details Cooled photodetector Cooled photodetector

2007-08-07

2007-08-07

Epps, Georgia (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Temperature control of photocell

C250S339030, C062S259200, C257S468000

Reexamination Certificate

active

10499960

ABSTRACT:
Cooled photosensitive cell (80) comprising a table (50), sensors (66) which are fitted on the table, a screen (80) to prevent parasitic radiation on the sensors, and at least one Joule-Thomson cooler (41, 42) to cool the table and the screen.The table (50) and the screen (80) are cooled by convection, the table (50) being provided with apertures (55) for passage of the cooling flow, which communicate with an annular cavity (63) for cooling of the screen (80).

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patent: 5382797 (1995-01-01), Kunimoto et al.
patent: 5598711 (1997-02-01), Stubbs
patent: 6430941 (2002-08-01), Mordechai et al.
patent: 0 213 421 (1987-03-01), None
patent: 0 493 208 (1992-07-01), None
Patent Abstracts of Japan, “Cooling Type Infrared Ray Detector”, Publication No. 63070127, Publication Date Mar. 30, 1988, Applicant NEC Corp.
International Search Report dated May 9, 2003.

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