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. 02, 2010
Filed:
Jun. 04, 2007
Naoto Nakahara, Saitama, JP;
Naoto Nakahara, Saitama, JP;
Hoya Corporation, Tokyo, JP;
Abstract
A focus detection method includes moving a focusing lens group from the near extremity toward the far extremity in a search operation, and stopping the focusing lens group upon first detecting an in-focus state to determine an in-focus position of the focusing lens group when detecting a focus state in each of a plurality of focus detection areas while performing the search operation, and moving the focusing lens group firstly to one of the near extremity and the far extremity which is closer to a current position of the focusing lens group and subsequently toward the other thereof, and stopping the focusing lens group upon first detecting an in-focus state to determine an in-focus position of the focusing lens group when detecting a focus state in the single focus detection area while performing the search operation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile