Why is the PV320 known as an "uncooled" imager even though it has a cooler on its thermal sensor?

In infrared imaging technology, the term "uncooled" refers to detector arrays that operate at or near room temperature. The term "uncooled" is used to distinguish this technology from the historical norm, which is to use detectors that only operate at cryogenic temperatures, e.g. , the temperature of liquid nitrogen (77K) or lower. The PV320 utilizes a focal plane array detector that operates near room-temperature (295K).

A single-stage thermoelectric cooler (TEC) in the detector package maintains the room-temperature operation of the detector over varying ambient temperatures.

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