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, 1991
Filed:
Dec. 29, 1988
Koji Mitsumori, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
An objective lens driving apparatus has a driving mechanism for moving a bobbin provided with an objective lens in a direction parallel to the optical axis of the objective lens and in a direction perpendicular to the optical axis of the objective lens. Each of first and second supporting members comprises a pair of hinge portions and parallel links coupling the hinge portions for supporting the bobbin so that it is movable in the direction parallel to the optical axis and in the direction perpendicular to the optical axis. The first and second supporting members are attached to a frame, and the bobbin is movable in the direction parallel to the optical axis by the first and second supporting members and in the direction perpendicular to the optical axis by a third parallel link formed of the bobbin, the first and second supporting members and a part of the frame.