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Proceedings Paper

Performance of new handheld IR camera using uncooled bolometer FPA
Author(s): Takanori Sone; Norio Ohkawa; Yasuo Kawashima; Yasuji Matsui; Yosuke Sugiura; Tomiharu Araki; Makoto Kamozawa; Masashi Ueno; Osamu Kaneda; Tomohiro Ishikawa; Hisatoshi Hata; Kazuo Hashima; Yoshiyuki Nakagi; Akira Yamada; Masafumi Kimata
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Paper Abstract

A camera using an uncooled infrared image sensor has been developed. This image sensor is a bolometer focal plane array (FPA), of which the readout circuit is designed to minimize the temperature drift or the pattern noise caused by the changes of the ambient temperature. The circuit has a bolometer for the load resistor, which has the same temperature coefficient of resistance as that of the pixel bolometer. Therefore the signal change induced by the temperature change of the FPA substrate is reduced because the resistance change of the load bolometer compensates for that of the pixel bolometer. The effectiveness of the drift- compensating circuit has been confirmed with a prototype handheld camera.

Paper Details

Date Published: 27 June 1996
PDF: 9 pages
Proc. SPIE 2744, Infrared Technology and Applications XXII, (27 June 1996); doi: 10.1117/12.243510
Show Author Affiliations
Takanori Sone, Mitsubishi Electric Corp. (Japan)
Norio Ohkawa, Mitsubishi Electric Corp. (Japan)
Yasuo Kawashima, Mitsubishi Electric Corp. (Japan)
Yasuji Matsui, Mitsubishi Electric Corp. (Japan)
Yosuke Sugiura, Mitsubishi Electric Corp. (Japan)
Tomiharu Araki, Mitsubishi Electric Corp. (Japan)
Makoto Kamozawa, Mitsubishi Electric Corp. (Japan)
Masashi Ueno, Mitsubishi Electric Corp. (Japan)
Osamu Kaneda, Mitsubishi Electric Corp. (Japan)
Tomohiro Ishikawa, Mitsubishi Electric Corp. (Japan)
Hisatoshi Hata, Mitsubishi Electric Corp. (Japan)
Kazuo Hashima, Mitsubishi Electric Corp. (Japan)
Yoshiyuki Nakagi, Mitsubishi Electric Corp. (Japan)
Akira Yamada, Mitsubishi Electric Corp. (Japan)
Masafumi Kimata, Mitsubishi Electric Corp. (Japan)

Published in SPIE Proceedings Vol. 2744:
Infrared Technology and Applications XXII
Bjorn F. Andresen; Marija S. Scholl, Editor(s)

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