Optical disk apparatus and optical pickup device equipped...

Details Optical disk apparatus and optical pickup device equipped... Optical disk apparatus and optical pickup device equipped...

2004-12-27

2008-03-04

Hindi, Nabil (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S112100

Reexamination Certificate

active

07339859

ABSTRACT:
The present invention provides an optical disk apparatus and an optical pickup which are of a thin type and capable of correcting spherical aberration, including: a semiconductor laser for emitting light; an objective lens for condensing the light from the semiconductor laser on a recording layer through a light transmission layer; at least two optical elements arranged between the semiconductor laser and the objective lend and having a predetermined refractive power; a spherical aberration correction element driving mechanism for moving at least one of the optical elements along an optical axis so as to cancel spherical aberration of imaging light on the recording layer; and a lens holder for holding at least one of the optical elements, a part of the lens folder being inserted into an opening of a cartridge and which.

REFERENCES:
patent: 6411596 (2002-06-01), Nagatsuka
patent: 6901599 (2005-05-01), Nagatsuka
patent: 6968563 (2005-11-01), Nagai
patent: 2004/0051990 (2004-03-01), Nagatsuka
patent: 2002312971 (2002-10-01), None
patent: 2003091847 (2003-03-01), None

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3979331