| 摘要 |
PROBLEM TO BE SOLVED: To provide an object lens driving device capable of controlling the generation of a tilt by symmetrizing the distributional shape of magnetic flux density to the peak of magnetic flux density. SOLUTION: For example, round parts 150 are provided in driving magnets 120 and 121, and the distributional shape of magnetic flux density in a plane in which driving coils are arranged is nearly symmetrized to the peak of magnetic flux density. Thus, unbalance is not generated in force generating in respective parts of the driving coils even in focusing and tracking movement, and any moment is not generated at the supporting center in a movable part.
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