| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens drive device capable of reducing operation sound of a lens moving in an optical axis direction.SOLUTION: A lens drive device A driving a lens L in an optical axis O direction has: a base 1 that has a cylindrical part 1a in which a liner groove 1c extending in the optical axis O direction is formed, and a drive coil part 5 at a flange part 1b of the cylindrical part 1a; a cam ring 3 that is arranged on the outer periphery of the cylindrical part 1a, in which a spiral groove 3a is formed, and that has a magnet 4 opposite to the drive coil part 5; and a lens frame 2 that is arranged on the inner periphery of the cylindrical part 1a, has a follower pin 6 engaged into the linear groove 1c and the spiral groove 3a, and internally fits the lens L.SELECTED DRAWING: Figure 1 |
