The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 11, 1997
Filed:
Jul. 13, 1995
Akira Kato, Yokohama, JP;
Kayoko Kondo, Kawasaki, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
According to an infrared sensor calibration apparatus, one end of a cylindrical cover member is connected to the radiation surface of a blackbody such that they are thermally independent of each other, the other end thereof is provided opposite to an incidence entry of the infrared sensor, the blackbody and cylindrical cover member are controlled so as to have their respective predetermined temperatures, the intensity of the infrared rays incident upon the infrared-rays entrance based on the temperatures and the emissivity of the blackbody and cylindrical cover member, and the intensity is compared with an output of the infrared sensor, thereby calibrating the infrared sensor.