Optical pickup actuator for driving an objective lens

Details Optical pickup actuator for driving an objective lens Optical pickup actuator for driving an objective lens

2007-01-25

2010-02-16

Huber, Paul (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S044220

Reexamination Certificate

active

07663984

ABSTRACT:
An optical pickup actuator which includes a base, a blade having an objective lens mounted thereon, a plurality of suspensions supporting the blade to be movable with respect to the base and forming an electroconductive path, and a magnetic circuit driving the blade according to a driving signal applied through the respective suspensions. The magnetic circuit includes a magnet fixed to the base, and a fine pattern coil installed on the blade at a position facing the magnet and having a track pattern coil, a focus pattern coil, and a tilt pattern coil independently driven by current applied through the suspensions and providing driving forces in a track direction, a focus direction, and a tilt direction of the blade.

REFERENCES:
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patent: 10-2005-0077378 (2005-08-01), None
Korean Office Action issued Jan. 17, 2007 corresponding to Korean application No. 10-2006-0018519.

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