| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens driving device capable of easily performing an assembly work even when it is possible to adjust a magnetic suction force between a magnetic member at a mobile body side and a driving magnet at a solid body side.SOLUTION: The lens driving device includes: a driving coil fixed to a mobile body; a driving magnet 21 fixed to a solid body; and an annular magnetic member 13 fixed to the mobile body on a side closer to a subject than the driving magnet 21. The mobile body includes: a planar magnetic member loading surface 8c on which a magnetic member 13 is loaded; and a plurality of protrusions 8d formed at predetermined intervals in the circumferential direction of the lens so as to protrude from the magnetic member loading surface 8c toward the subject side. The magnetic member loading surface 8c is formed at the outer peripheral side of the protrusions 8d and between the plurality of protrusions 8d, and the magnetic member 13 includes: a plurality of outer peripheral side arrangement parts 13a arranged at the outer peripheral side of the protrusions 8d and a plurality of inter-protrusion arrangement parts 13b arranged between the plurality of protrusions 8d with inner diameters smaller than those of the outer peripheral side arrangement parts 13a. |
