Novel low-cost uncooled infrared camera

Ming Wu; Julie Cook; Rich DeVito; Jun Li; Eugene Ma; Rob Murano; Nikolay Nemchuk; Marvin Tabasky; Matthias Wagner

doi:10.1117/12.603905

31 May 2005 Novel low-cost uncooled infrared camera (Invited Paper)

Ming Wu, Julie Cook, Rich DeVito, Jun Li, Eugene Ma, Rob Murano, Nikolay Nemchuk, Marvin Tabasky, Matthias Wagner

Proceedings Volume 5783, Infrared Technology and Applications XXXI; (2005) https://doi.org/10.1117/12.603905
Event: Defense and Security, 2005, Orlando, Florida, United States

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.

Citation Download Citation

Ming Wu, Julie Cook, Rich DeVito, Jun Li, Eugene Ma, Rob Murano, Nikolay Nemchuk, Marvin Tabasky, and Matthias Wagner "Novel low-cost uncooled infrared camera (Invited Paper)", Proc. SPIE 5783, Infrared Technology and Applications XXXI, (31 May 2005); https://doi.org/10.1117/12.603905

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