Optical pickup actuator having flux shielding magnet,...

Details Optical pickup actuator having flux shielding magnet,... Optical pickup actuator having flux shielding magnet,...

2003-09-02

2008-03-04

Watko, Julie Anne (Department: 2627)

Dynamic optical information storage or retrieval

Dynamic mechanism optical subsystem

Transducer carriage or actuator

Reexamination Certificate

active

07340756

ABSTRACT:
An optical pickup actuator having a flux shielding magnet, an optical pickup employing the optical pickup actuator, and an optical disc drive apparatus employing the optical pickup. The optical pickup actuator includes: a blade holding the objective lens; coils installed to the blade; and a base having a plurality of driving magnets interacting with a current flowing through the coils and generating a force that drives the blade in a predetermined direction, a shielding magnet arranged opposite to, and having a same polarity facing at least one of the driving magnets, the shielding magnet blocking leakage of magnetic flux from the driving magnets, and a holder having a surface to which the shielding magnet is attached and to which the blade is movably attached.

REFERENCES:
patent: 2002/0150002 (2002-10-01), Pae et al.
patent: 2004/0177365 (2004-09-01), Takeshita et al.
patent: 09330532 (1997-12-01), None
patent: 10-116428 (1998-05-01), None
patent: 10241198 (1998-09-01), None
patent: 2000-076673 (2000-03-01), None
patent: 2000251295 (2000-09-01), None
patent: 2000293874 (2000-10-01), None
patent: 2002-208146 (2002-07-01), None
Office Action dated Oct. 11, 2005 from the Japanese Patent Office.

Affiliated with

Also associated with

Rating

Optical pickup actuator having flux shielding magnet,... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical pickup actuator having flux shielding magnet,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical pickup actuator having flux shielding magnet,... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3960524