| 摘要 |
A lens position control unit of an optical pickup device, which is able to reduce the overall size of the device, to reduce the weight of the device, and to simplify the fabrication process by patterning coils for focusing, tracking, and radial tilt driving of a lens on a printed circuit board (PCB), comprises: a lens holder, on which a lens is fixed, disposed on upper part of a suspended yoke plate; suspension wires for supporting the suspension of the lens holder and applying electric power; coil PCBs, on which coils for focusing, tracking, and radial tilt driving of the lens holder are patterned, attached on front and rear parts of the lens holder; and magnets positioned at predetermined intervals from the coil PCBs to drive the lens by interaction with the coil PCBs.
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