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:
Apr. 30, 2019
Filed:
Jun. 06, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
Hiroshi Abe, Ichikawa, JP;
Takuya Izumi, Yokohama, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An image capturing apparatus includes: an image sensor configured to capture an object image; a first focus detection unit configured to perform focus detection based on a pair of image signals generated by the image sensor; a second focus detection unit configured to image the object image on a focus detection element as a pair of images, and perform focus detection based on a pair of image signals; a setting unit configured to set an AF correction value used in correction of a focus detection result by the second focus detection unit; and a determining unit configured to determine accuracy of the AF correction value, based on a difference between a focus detection result by the first focus detection unit and a focus detection result by the second focus detection unit.