| 摘要 |
An actuator for an optical pickup includes a magnetic circuit having a structure in which coils to drive an objective lens in one direction selected from a focusing, tilting, or tracking directions, and magnets to drive the objective lens in the other directions. The coils and magnets are installed on the bobbin. The actuator for an optical pickup reduces the number of wires required for 6-axis direction driving, thereby making assembly easy. The actuator includes magnets, yokes, and coils in the bobbin, thereby reducing the mass of the bobbin, improving sensitivity, and increasing the efficiency of magnetic force.
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