Patent ID: 7208734
Filing Date: 2007-04-24
Classification: G01J

Abstract:
1. An infrared detector array comprising: a thin film formed from insulating material; a frame having a concave portion and supporting a periphery portion of said thin film; three or more infrared detecting pixels arranged on said thin film in an array pattern, each pixel being configured such that a plurality of thermocouples having hot junctions formed above said concave portion and cold junctions formed above said frame are connected in series and an infrared absorbing layer is formed so as to cover said hot junctions from above; and compensation means for compensating for a difference between detection sensitivity of the first infrared detecting pixel arranged in a peripheral end portion and detection sensitivity of the second infrared detecting pixel arranged in an intermediate portion based on a correlation between thermoelectromotive force, which is extracted when said infrared detecting pixel is illuminated with infrared radiation, and its position.