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:
Apr. 20, 2010
Filed:
Feb. 08, 2007
Nobuo Takeshita, Tokyo, JP;
Toshiya Matozaki, Tokyo, JP;
Keiji Nakamura, Tokyo, JP;
Mitoru Yabe, Tokyo, JP;
Nobuo Takeshita, Tokyo, JP;
Toshiya Matozaki, Tokyo, JP;
Keiji Nakamura, Tokyo, JP;
Mitoru Yabe, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
An optical element driving apparatus includes a holder that holds a plurality of switchable optical elements for focusing light on a recording medium, a resiliently deformable supporting unit that supports the holder, a focusing driving unit that drives the holder in a direction of optical axes of the optical elements, and a tracking driving unit that drives the holder in a tracking direction perpendicular to the direction of the optical axes. The switching of the optical elements is performed by moving the holder by means of the tracking driving unit, so as to select one of the optical elements that focuses light on the recording medium.