Objective lens actuator and optical disk apparatus

Details Objective lens actuator and optical disk apparatus Objective lens actuator and optical disk apparatus

2008-09-02

2008-09-02

Hindi, Nabil Z (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

Reexamination Certificate

active

11175403

ABSTRACT:
An objective lens actuator of the present invention is an actuator capable of driving an objective lens which condenses a laser beam on an information recording surface of an optical disk, in each of a focusing direction, a tracking direction and a radial tilt direction. The actuator comprises a fixed unit including first and second magnets, and a moving unit which is arranged between the first and second magnets and which includes the objective lens, focusing coils, tracking coils, and a radial tilt coil. Each of the magnets is divided into four areas and being magnetized such that adjacent areas have opposite poles N and S, respectively. A direction of the magnetization is orthogonal to the focusing direction and tracking direction.

REFERENCES:
patent: 7266055 (2007-09-01), Cho et al.
patent: 2003-257056 (2003-09-01), None

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3905843