Affordable cryocoolers for commercial IR imaging

A. Veprik; S. Zechtser; R. Refaeli; A. Wise

doi:10.1117/12.2588772

12 April 2021 Affordable cryocoolers for commercial IR imaging

A. Veprik, S. Zechtser, R. Refaeli, A. Wise

Proceedings Volume 11741, Infrared Technology and Applications XLVII; 117410G (2021) https://doi.org/10.1117/12.2588772
Event: SPIE Defense + Commercial Sensing, 2021, Online Only

Abstract

Operating infrared detectors at cryogenic temperatures is vital for attenuating intrinsic thermally-induced noise, thus enabling long working ranges, short integration times, high spatial and temperature resolutions along with other advantages. Unfortunately, the high costs of integrated dewar/detector/cooler assemblies prevent the broad deployment of cooled infrared technology in the price-sensitive and highly competitive commercial market. Uncooled infrared technology, although inferior in performance, is more affordable and, therefore, more ubiquitous. Extending working ranges of uncooled infrared detectors, however, may lead to using expensive and bulky “fast” optics. In a combination with added cost, weight and mechanical complexity of host structures, this may wipe out inherent cost/bulk advantages of uncooled imagers. In some cases, therefore, the cooled infrared imager may be superior in terms of attainable performance, bulk, and system cost.

Conference Presentation

Citation Download Citation

A. Veprik, S. Zechtser, R. Refaeli, and A. Wise "Affordable cryocoolers for commercial IR imaging", Proc. SPIE 11741, Infrared Technology and Applications XLVII, 117410G (12 April 2021); https://doi.org/10.1117/12.2588772

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