Stellantrieb eines optischen Abstastgeräts

Actuator of optical pick-up device

Actionneur pour tête de lecture optique


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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    Publication numberPublication dateAssigneeTitle