Actuator of optical pick-up device

Details Actuator of optical pick-up device Actuator of optical pick-up device

2005-01-11

2008-08-19

Edun, Muhammad (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S044140

Reexamination Certificate

active

07414927

ABSTRACT:
An actuator of an optical pick-up device includes two fixing frames, a lens holder disposed between the fixing frames and provided with a focusing lens, coils, and a reflection mirror having a central portion thinner than other portions where the coils are located, springs supporting the lens holder, the springs connecting two points of each fixing frame to the lens holder, each spring having one or more bends, a permanent magnet disposed facing the coils to generate magnetic field, and a yoke forming a path of the magnetic field generated by the permanent magnet.

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patent: 01-236434 (1989-09-01), None
patent: 07-121893 (1995-05-01), None
patent: 2000-306250 (2000-11-01), None

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