Optical pickup apparatus

Details Optical pickup apparatus Optical pickup apparatus

2006-07-25

2006-07-25

Korzuch, William (Department: 2653)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S044140, C369S044220, C369S044320, C369S112290

Reexamination Certificate

active

07082084

ABSTRACT:
It is an object of the present invention to provide an optical pickup apparatus appropriate for the notebook PC that can prevent structural resonance of the lens holder by arranging the focus coil and the tracking coil in a way to stabilize the weight balance, enable the tilt servo, and be composed in an extremely reduced thickness. An optical pickup apparatus composed to adjust the irradiation position of light beam to an optical disk by displacing an objective lens through a driving control of a lens holder holding the objective lens with a moving coil method, wherein an objective lens driving section is composed by arranging and fixing focus coils7a, 7bso that a pair of coil main bodies be symmetrical about the objective lens4arranged at the middle of the lens holder4, and arranging a pair of tracking coils8a, 8b, 8c, 8dat both sides of the respective focus coils.

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Japanese Office Action (English translation) dated Aug. 3, 2004, in corresponding Japanese Patent Application No. 2001-303990 filed Sep. 28, 2001.

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