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Abstract

An infrared imaging device that groups two or more active radiation detectors with at least one shielded radiation detector for cancelling the self-heating effect from the active radiation detectors is disclosed. A power supply is coupled to the group containing active and at least one shielded radiation detector to provide power to the group synchronously so that the active and shielded radiation detectors will be subjected to the same self-heating effect. A readout module subtracts a reference signal received from the shielded radiation detectors from each of the active signals received from each of the active radiation detectors. The infrared imaging device can have one or more shielded radiation detectors for each row of active radiation detectors in an infrared imaging array.

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First Claim