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.

Date of Patent:
Nov. 09, 2010

Filed:

Oct. 22, 2007
Applicant:

Muneyuki Horiguchi, Kanagawa, JP;

Inventor:

Muneyuki Horiguchi, Kanagawa, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An objective lens drive includes a lens holder holding first and second objective lenses and moved at least in a focusing direction substantially parallel to optical axes of the objective lenses and in a tracking direction orthogonal to the focusing direction; a support supporting the lens holder movably at least in the focusing and tracking directions; a first adjusting unit provided between the first objective lens and the lens holder and adjusting a tilt of the first objective lens in a direction about an axis in a first direction being any direction in a plane orthogonal to the focusing direction; and a second adjusting unit provided between the second objective lens and the lens holder and adjusting a tilt of the second objective lens in a direction about an axis in a second direction being in a plane orthogonal to the focusing direction and substantially orthogonal to the first direction.


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