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:
Jun. 30, 2015
Filed:
Jan. 28, 2011
Yoshihiro Sato, Yokohama, JP;
Jun Hato, Fujisawa, JP;
Katsuhiko Kimura, Kasumigaura, JP;
Seiichi Kato, Tsuchiura, JP;
Takahiro Yamaguchi, Yokohama, JP;
Yoshihiro Sato, Yokohama, JP;
Jun Hato, Fujisawa, JP;
Katsuhiko Kimura, Kasumigaura, JP;
Seiichi Kato, Tsuchiura, JP;
Takahiro Yamaguchi, Yokohama, JP;
HITACHI CONSUMER ELECTRONICS CO., LTD., Kanagawa, JP;
Abstract
High-performance and reliable objective lens driving apparatus and optical pickup wherein the tilt of an objective lens relative to an optical disc is suppressed are provided. The optical pickup is equipped with a semiconductor laser, an electro-optic component, and the objective lens driving apparatus. In this optical pickup, the objective lens driving apparatus is comprised of: a moving part including an objective lens, a holder that holds the objective lens, a focusing coil, and a tracking coil; a holding member for elastic support members that couples together multiple elastic support members providing elastic support on a fixed part and the moving part and is mounted on the moving part; the elastic support members that elastically support the moving part from the fixed part; and the fixed part. The holding member for elastic support members mounted on the moving part and the holder that holds the objective lens are joined together by fitting together a concavity and a convexity.