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:
Mar. 25, 2008
Filed:
Oct. 07, 2004
Applicants:
Sam Nyol Hong, Suwon-si, KR;
IN Ho Choi, Seongnam-si, KR;
Kyung Taek Lee, Yongin-si, KR;
Inventors:
Assignee:
LG Electronics, Inc., Seoul, KR;
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/085 (2006.01);
U.S. Cl.
CPC ...
Abstract
An actuator of an optical pick-up device includes two fixing frames, a lens holder disposed between the fixing frames and provided with a focus lens and coils, springs supporting the lens holder, the springs connecting two points of each fixing frame to the lens holder, each spring having one or more bends, a permanent magnet disposed facing the coils to generate magnetic field, and a yoke forming a path of the magnetic field generated by the permanent magnet.