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:
Dec. 17, 2013
Filed:
Sep. 16, 2010
Kenichi Honjo, Osaka, JP;
Mitsuyoshi Okamoto, Osaka, JP;
Koji Shibuno, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A focus adjusting apparatus includes an optical system including a focus lens, a driver configured to move the focus lens along an optical axis of the optical system, an obtaining unit configured to periodically obtain an evaluation value of a subject image formed via the focus lens, a determining unit configured to determine a target position to which the focus lens is moved based on the evaluation value, and a controller configured to control an operation of the driver based on the determined target position. The controller controls the driver to move the focus lens at a first speed for a first period including a backlash period which is defined from start of the operation of the driver to start of an actual movement of the focus lens, and controls the driver to move the focus lens at a second speed faster than the first speed for a second period after the end of the first period.