| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens driving device driving a lens by an electro-magnetic force, in which wiring processing does not become complicated, and a reduction in driving power is possible.SOLUTION: A lens driving device 30 includes: a base 10; a lens holder 31 movably supported on the base 10, for holding a lens 15; and a driving part 33 for driving the lens holder 31 by using an electro-magnetic force. The driving part 33 has a coil 331 fixedly arranged on the base 10, a magnet 332 mounted on the lens holder 31, and a yoke 333 mounted on the lens holder 31 and forming a magnetic circuit together with the coil 331 and the magnet 332. The cross-sectional area of the yoke 333 is varied on the basis of the difference in density of magnetic fluxes passing therethrough. |
