Patent ID: 8143574
Filing Date: 2012-03-27
Classification: G01J,H04N

Abstract:
1. A method of compensating an infrared sensor for a temperature, wherein an output voltage of each of a plurality of bolometers comprising a bolometer array comprising the infrared sensor is compensated, said method comprising: correcting a variation in the output voltage due to a temperature characteristic of said each bolometer of said plurality of bolometers included in the bolometer array comprising the infrared sensor; correcting a variation in said output voltage due to an intensity distribution of an incident infrared radiation to be measured on the infrared sensor and the temperature characteristic of each bolometer; correcting a variation in said output voltage due to an intensity distribution of background infrared radiation, referred to as “background infrared radiation absorption intensity distribution” hereinafter, which comprises light other than the incident infrared radiation on the infrared sensor, and the temperature characteristic of each bolometer, said correcting the variation in said output voltage due to said intensity distribution of background infrared radiation comprising: correcting a uniform voltage variation corresponding to said intensity of the background infrared radiation, which comprises light other than the incident infrared radiation on the infrared sensor, said correcting the uniform voltage variation corresponding to said intensity of the background infrared radiation comprising: wherein said first table is formulated by: under a vacuum sealed condition of the back round infrared sensor, measuring temperatures of the infrared sensor and a source of generation of the background infrared radiation and said output voltage by varying a temperature of surroundings of the infrared sensor from a first temperature to a second temperature;