| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens drive device able to enhance magnetic field intensity by a compact configuration and able to supply power to coil from a spring, and to provide a camera, and mobile phone with a camera.SOLUTION: In a lens drive device 1 according to the present invention, a yoke 3 has an outer peripheral side wall 3a with a quadrangular outline as viewed from above. A magnet 13 is provided at each corner 14 of the yoke, and the thickness of the central part of the magnet in the circumferential direction of the yoke 3 is made greater than the thickness of each end part thereof. One spring 11 has one side part 30 and the other side part 32 separated from each other. The one side part 30 and the other side part 32 each have an outer peripheral side part 11b fixed to a base 5, an inner peripheral side part 11a fixed to a lens support 7, and an arm part 11c connecting the outer peripheral side part 11b and the inner peripheral side part 11a. The one side part 30 and the other side part 32 are electrically connected to a coil 15 provided on a lens support 7, and also they support the lens support 7 so that it freely moves in the direction of an optical axis. |
