| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical pickup capable of correcting an aberration and having a high driving sensitivity. SOLUTION: The optical pickup 50 includes an objective lens 40, a lens holder 42, a radial coil 20, a focus coil 30, and a magnet 54. The radial coil 20 and a tilt coil 10 are wound around the tangential direction of an optical disk to be formed, and arranged in the lens holder 42 to face the magnet 54 in the tangential direction of the optical disk. The focus coil 30 is wound aroun an optical axis direction to be formed in the outer periphery of the lens holder 42, and arranged in the lens holder 42 so that a surface present in a magnetic field formed by the magnet 54 faces the magnet 54. A surface present in the magnetic field of the radial coil 20 and the focus coil 30 is arranged on the magnet 5 side more than the surface present in the magnetic field of the tilt coil 10. COPYRIGHT: (C)2007,JPO&INPIT
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