Optical pickup apparatus

Details Optical pickup apparatus Optical pickup apparatus

2004-02-17

2008-10-21

Young, Wayne (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S112010

Reexamination Certificate

active

07440361

ABSTRACT:
An optical pickup apparatus including a swing arm pivotably installed in a tracking direction with respect to a disc, and an optical pickup unit supported by the swing arm and driven in a focusing direction, wherein the optical pickup unit includes a laser diode, an objective lens to focus light emitted from the laser diode on a recording surface of the disc, and a heat sink plate to dissipate heat generated from the laser diode, wherein the heat sink plate is provided close to the disc so as to be directly exposed to wind generated during rotation of the disc.

REFERENCES:
patent: 3893769 (1975-07-01), Woolley
patent: 4403316 (1983-09-01), van de Veerdonk
patent: 5600619 (1997-02-01), Takekoshi et al.
patent: 5687155 (1997-11-01), Fukakusa et al.
patent: 5761178 (1998-06-01), Fukakusa et al.
patent: 6901598 (2005-05-01), Freeman et al.
patent: 2001/0004370 (2001-06-01), Miyajima et al.
patent: 2002/0075784 (2002-06-01), Kim
patent: 2002/0101796 (2002-08-01), Freeman et al.
patent: 2003/0179667 (2003-09-01), Yoshinaka et al.
patent: 2004/0246999 (2004-12-01), Yamazaki et al.
patent: 6-243499 (1994-09-01), None
patent: 06-243499 (1994-09-01), None
patent: 8-235556 (1996-09-01), None
patent: 08-235556 (1996-09-01), None
patent: 8-287499 (1996-11-01), None
patent: 2002-123958 (2002-04-01), None
patent: 2002-203328 (2002-07-01), None
patent: 2002-279782 (2002-09-01), None
patent: 2002-365406 (2002-12-01), None
patent: 2004-259247 (2004-09-01), None
Machine Translation of JP 08-287499 A.
Chinese Office Action dated Sep. 30, 2005 issued in co-pending Chinese Patent Application No. 200410006772.2.
European Search Report issued Apr. 4, 2007 by the European Patent Office re: European Patent Application No. 04261033.9-1232 (3 pp).
European Search Report issued Apr. 4, 2007 by the European Patent Office re: European Patent Application No. 04261033.9-1232 (3 pp).
Japanese Office Action dated Apr. 11, 2006 issued in corresponding Japanese Application No. 2004-44161.

Affiliated with

Also associated with

Rating

Optical pickup apparatus 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 apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical pickup apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3988727