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. 22, 2011
Filed:
Aug. 04, 2010
Toru Kawashima, Kawasaki, JP;
Toru Kawashima, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An imaging apparatus includes an image sensor configured to capture an image of an object, a mechanical shutter including a second curtain and a second-curtain holding mechanism configured to electromagnetically hold the second curtain at an initial position prior to a travel, a first temperature sensor disposed within a predetermined range from the second-curtain holding mechanism, a second temperature sensor disposed outside the predetermined range from the second-curtain holding mechanism, a determination unit configured to determine an exposure time for the image sensor according to a brightness of the object, an adjustment unit configured to adjust the exposure time if a temperature difference between temperatures detected by the first and second temperature sensors is greater than a predetermined threshold, and an exposure control unit configured to perform exposure control for the image sensor based on the exposure time adjusted by the adjustment unit if the temperature difference is greater than the predetermined threshold.