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Proceedings Paper

Novel low-cost uncooled infrared camera
Author(s): Ming Wu; Julie Cook; Rich DeVito; Jun Li; Eugene Ma; Rob Murano; Nikolay Nemchuk; Marvin Tabasky; Matthias Wagner
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Paper Abstract

A novel uncooled long-wave infrared imaging technology with optical readout is proposed and developed targeted for low cost thermal imaging applications. This technology uses the thermo-optic effect in a semiconductor to detect infrared signals rather than the thermal-resistance effect used in traditional microbolometers. The key component of the imager, the focal plane array, is made up of thermally tunable thin film filter membrane pixels. Each thermal pixel acts as a wavelength translator, converting far infrared radiation signals into near infrared signals which are then detectable by off-the-shelf CCD or CMOS cameras. This approach utilizes optical filter and MEMS technologies, to build a low-cost passive long wavelength infrared focal plane array without electrical leads or active cooling. Within one year since the commencement, NETD values of 0.28K in a 160x120 array operating at 22Hz video frame rate have been achieved without temperature control.

Paper Details

Date Published: 31 May 2005
PDF: 10 pages
Proc. SPIE 5783, Infrared Technology and Applications XXXI, (31 May 2005); doi: 10.1117/12.603905
Show Author Affiliations
Ming Wu, Aegis Semiconductor Inc. (United States)
Julie Cook, Aegis Semiconductor Inc. (United States)
Rich DeVito, Aegis Semiconductor Inc. (United States)
Jun Li, Aegis Semiconductor Inc. (United States)
Eugene Ma, Aegis Semiconductor Inc. (United States)
Rob Murano, Aegis Semiconductor Inc. (United States)
Nikolay Nemchuk, Aegis Semiconductor Inc. (United States)
Marvin Tabasky, Aegis Semiconductor Inc. (United States)
Matthias Wagner, Aegis Semiconductor Inc. (United States)

Published in SPIE Proceedings Vol. 5783:
Infrared Technology and Applications XXXI
Bjorn F. Andresen; Gabor F. Fulop, Editor(s)

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