| 摘要 |
PROBLEM TO BE SOLVED: To improve responsiveness by arrangement of a magnetization pattern of a magnet, a focus coil, a tracking coil, and a tilt coil, reducing the number of parts, and miniaturizing it, in an optical pickup in which tilt control can be performed. SOLUTION: In a pair of magnets 29a, 29b, same polarities of magnetization for focus drive and magnetization for tracking drive are continued by having polarization magnetization of a focus direction and polarization magnetization of a tracking direction adjacently, there are two sets of focus coils and tilt coils, the focus coils 23a, 23b and the tilt coils 25a, 25b of each set are arranged corresponding to the paired magnets 29a, 29b, while arranged at a lens holder 21 over a polarization boundary of magnetization for focus drive being overlapped each other, the tilt coils 25a, 25b are connected so as to generate thrust being inverse direction each other to adjust tilt of the lens holder. COPYRIGHT: (C)2006,JPO&NCIPI
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