Infrared rays detecting apparatus with integral temperature cont

Details Infrared rays detecting apparatus with integral temperature cont Infrared rays detecting apparatus with integral temperature cont

1990-07-24

1992-06-02

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

2503381, 2503384, 250349, 25037013, 25037015, H01L 31024, H01L 310296

Patent

active

051189470

ABSTRACT:
A cooling type infrared rays detecting apparatus is disclosed which prevents a fluctuation of an infrared rays image arising from a variation of the cooling temperature. The infrared rays detecting apparatus includes a dummy element mounted adjacent an infrared rays detecting device on a device mounting portion of an inner tube. The dummy element has a similar structure to that of each of infrared rays detecting elements of the infrared rays detecting device and is formed from the same material as the latter. A temperature variation of the dummy element is detected from a variation in resistance of the dummy element, and an output of the infrared rays detecting device is compensated for in response to the thus detected temperature variation to prevent a possible fluctuation of an infrared rays image arising from a temperature variation. Consequently, an infrared rays image of a high quality can be obtained.

REFERENCES:
patent: 3453432 (1969-07-01), McHenry
patent: 3629585 (1971-12-01), Desvignes et al.
patent: 4321615 (1982-03-01), Blackman et al.
patent: 4565925 (1986-01-01), Anderson et al.
patent: 4792682 (1988-12-01), Endou et al.
patent: 4862002 (1989-08-01), Wang et al.

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