Patent ID: 7650065

Claim:
An image stabilizer for a lens system having an optical axis, comprising: a driver having a magnet producing a magnetic force to move a correcting lens in a first direction perpendicular to the optical axis of the lens system and in a second direction perpendicular to the first direction and to the optical axis of the lens system; a first Hall element detecting, based on the magnetic force, a position of the correcting lens along the first direction; a second Hall element detecting, based on the magnetic force, a position of the correcting lens along the second direction; a yoke supporting the magnet and having a first portion which projects beyond an edge of the magnet in the first direction and a second portion which projects beyond an edge of the magnet in the second direction; and a controller controlling the driver such that an optical axis of the correcting lens coincides with the optical axis of the lens system, the first Hall element and the second Hall element being positioned such that the magnetic force is a position reference value when the optical axis of the correcting lens coincides with the optical axis of the lens system.