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. 27, 2018
Filed:
Oct. 27, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Yuichi Kosaka, Utsunomiya, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
The image pickup apparatus includes a focus detector to produce, by using a light from an object passing through an image-taking optical system, focus information indicating a focus state of the image-taking optical system, a light-receiving sensor including visible-light receiving elements each receiving the light from the object and respectively having sensitivity centroids in mutually different wavelength ranges of a visible wavelength range, and a controller. The light-receiving sensor includes, separately from the visible-light receiving elements, infrared receiving elements each having a sensitivity centroid in an infrared wavelength range. An infrared-cutting filter disposed on a light-entering side further than the light-receiving sensor has a half-value wavelength longer than a wavelength of the sensitivity centroid of the infrared receiving elements. The controller performs focus control by using the focus information, output from the visible-light receiving elements and output from the infrared receiving elements.
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