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:
Aug. 31, 2004
Filed:
Aug. 02, 2002
Applicant:
Inventors:
Li-Chung Peng, Hsinchu, TW;
Chi-Ling Chang, Hsinchu, TW;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 7/02 ; G11B 7/00 ;
U.S. Cl.
CPC ...
G02B 7/02 ; G11B 7/00 ;
Abstract
An objective lens holding apparatus includes an upper supporting portion and a bottom supporting portion not parallel with each other. The upper supporting portion and the bottom supporting portion have respectively one end connecting to an objective lens holder and another end connecting to a supporting arm anchor dock. The objective lens is mounted to the objective lens holder and is prevented from incurring an inclined angle while the objective lens is yawing. The elastic supporting arm anchor dock can keep the high resonant frequency within a desired range to enhance the stability of the optical pick-up head during reading and writing operations.