Patent ID: 8730598

Claim:
A lens driving device comprising: a lens holder; a casing disposed outside of the lens holder and connected with the lens holder by a spring member; a driving coil mounted on an outer circumference of the lens holder; and a permanent magnet mounted on the casing and arranged opposite to the driving coil with spacing; the lens driving device is characterized in that: when a direction toward an imaged object is designated as a forward direction of a Z axis, the configuration of the driving coil including a first through third coils wound around the Z axis is such that the second coil is arranged in the forward direction of the Z axis with respect to the first coil and the third coil is arranged in a backward direction of the Z axis with respect to the first coil, and that the permanent magnets include a first through fourth magnets whose polarity at respective sides facing the driving coil is the same and the first through fourth magnets are arranged around the Z axis in numeral sequence when viewed in the Z axis direction, wherein the first magnet and the second magnet are arranged respectively at positions facing only the first coil, the third magnet is arranged at a position facing only the first coil and the second coil, the fourth magnet is arranged at a position facing only the first coil and the third coil.