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:
Mar. 02, 2004
Filed:
Jul. 12, 2001
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
In an infrared imaging device, shutting means is configured so that it can be opened/closed and so as to shut off an infrared radiation coming into an optical system when it is closed. During an imaging operation, the shutting means is opened, and the optical system causes an infrared radiation from an object to form an image on an infrared detector . The infrared detector outputs a signal according to the amount of infrared light received by each pixel. Correction means corrects sensitivity variations among pixels, the influence of the infrared radiation from the optical system , etc. During a calibration operation, the shutting means is closed, and the correction means determines a correction coefficient for correcting fluctuations in the amount of infrared radiation from the optical system by using the output of the infrared detector imaging the shutting means