Patent ID: 7860384

Claim:
An image stabilizer for stabilizing images by moving a moving frame of a lens system relative to a fixed base board in a first direction perpendicular to both an optical axis of the lens system and in a second direction perpendicular to the optical axis of the lens system and to the first direction, the image stabilizer comprising: a driver positioned at one side of the moving frame which moves the moving frame in the first direction and in the second direction, the driver comprising: a first flat coil comprising first adjacent linear thrust-generating coil portions of different lengths that generate thrust for moving the moving frame in the first direction; a second flat coil comprising second adjacent linear thrust-generating coil portions that generate thrust for moving the moving frame in the second direction; magnets applying magnetic force to the first coil and to the second coil; and a yoke supporting the magnets and having a protrusion positioned on a side of the shorter of the first thrust-generating portions and in a region where the longer of the first thrust-generating portions extends beyond the shorter of the first thrust-generating portions, wherein the first coil and the second coil are positioned such that the first thrust-generating portions overlap the second thrust-generating portions at substantially a right angle, an electric current flows in the same direction in the first thrust-generating portions and in the second thrust-generating portions, and the magnetic force is applied in common to the overlap.