INFRARED IMAGING DEVICE

An infrared imaging device comprises an infrared imaging sensor (1) to detect infrared light as heat, a temperature drift compensation amount calculation unit (7) to calculate a temperature drift compensation amount (Dc) in accordance with a temperature change of the substrate, with respect to a pixel output (Sp) outputted from each of the plurality of pixels (1p), a compensation amount calculation function generation unit (5) to generate a function (Af) with the temperature of the substrate as an independent variable; and a timing control unit (6) to cause the infrared imaging sensor (1) and the substrate temperature sensor (4) to synchronously output data to the compensation amount calculation function generation unit (5) for generating the function (Af), wherein the compensation amount calculation function generation unit (5) uses the data for generation output after the generation of the function (Af) as additional data for improving accuracy of the function (Af).