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:
Aug. 25, 2009
Filed:
Nov. 29, 2006
Naoto Nakahara, Saitama, JP;
Naoto Nakahara, Saitama, JP;
Hoya Corporation, Tokyo, JP;
Abstract
A focus adjustment apparatus includes an imaging device for capturing object images via a photographing lens; a lens driving device which moves a focusing lens group; a manual focus adjustment device which actuates the lens driving device to move the focusing lens group in response to a manual operation; a focus detection device for making the imaging device capture an object image to determine a contrast value thereof each time the focusing lens group moves by a predetermined amount of movement due to the manual operation, and for detecting an in-focus position of the focusing lens group in accordance with contrast values detected by the focus detection device at different lens positions; and a controller which moves the focusing lens group to the in-focus position via the lens driving device if a deviation exists between a stopped position and the in-focus position.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile