Summary
Sensors: night vision
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Extract
Uncooled IR is the new cool.
In the world of night vision, infrared (IR) detectors are the core of the thermal imaging (TI) systems and come in two basic types: cooled (based on photon detection) or uncooled (thermal detection). While the former (either a photoconductor or phatovoltaic device) is considered the best technology far true IR heat detection, they are expensive to own and operate. In recent years, however, the development of uncooled IR detectors has moved forward.
Without a cooling circuit in the system, uncooled IR thermal detectors can be less bulky, lightweight and use less power than their cooled brethren. Additionally, they can offer a wide spectral response and longer periods of operation than the cooled photon detector. Therefore, uncooled technology provides military users with high sensitivity sensors in a lower cost, more reliabl...See the full content of this document
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