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. 20, 2012
Filed:
Nov. 10, 2008
Ken Utagawa, Yokohama, JP;
Ken Utagawa, Yokohama, JP;
Nikon Corporation, Tokyo, JP;
Abstract
A focus detection device includes an imaging element, a storage controller, and a focus detector. The imaging element is provided on a light path of a light flux incident via an optical system and has a plurality of pixels of charge storage type two-dimensionally arranged. The storage controller controls to sequentially store charges in pixels arranged in a first direction among the plurality of pixels and controls to sequentially store charges in pixels arranged in a second direction opposite to the first direction. The focus detector detects a focus adjustment state of the optical system based on a first output obtained when the storage controller sequentially performs storage control in the first direction and a second output obtained when the storage controller sequentially performs storage control in the second direction.