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:
Jan. 22, 2002
Filed:
Jul. 28, 1999
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An optical pickup apparatus suited for reducing the size and thickness and capable of performing a tilt control of an objective lens with ease, and an optical disk apparatus. The optical pickup apparatus comprises: an objective lens for focusing a beam emitted from a light source onto an optical disk; a lens holding cylinder for holding the objective lens; wires and elastic tilt members for elastically supporting the lens holding cylinder so that it can be moved; and a yoke base for fixedly supporting the wires and for fixedly supporting magnets, the magnets being adapted to movably drive the lens holding cylinder; wherein the lens holding cylinder has a circular space portion and an almost rectangular opening portion in which the magnets are inserted, the circular space portion being adapted to hold the objective lens and guide the beam emitted from the light source to the objective lens; wherein the wires have one end thereof secured to a suspension holder and the elastic tilt members have one end thereof secured to a nearly central part, with respect to a tangential direction, of the almost rectangular opening portion of the lens holding means; wherein the lens holding cylinder is supported so that it can be pivoted in the tangential direction about the elastic tilt member as a rotating center.