Stellantrieb eines optischen Abstastgeräts

Actuator of optical pick-up device

Actionneur pour tête de lecture optique

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 Citations (6)

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    EP-1369854-A2December 10, 2003Ricoh Company, Ltd.Objective lens drive apparatus, optical pickup device, and optical disk drive
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    Publication numberPublication dateAssigneeTitle