Patent attributes
A lens driving device is disclosed. The lens driving device includes a housing including a base, and a cover body forming a receiving space together with the base; a lens barrel assembled inside the housing and moveable along an optical axis of the lens barrel; an anti-shake carrier assembled inside the housing for suspending the lens barrel along the optical axis; an anti-shake spring having one end thereof fixed to the housing, and another end fixed on the anti-shake carrier; a plurality of bearing steel balls provided between the base and the anti-shake carrier for reducing friction force when the anti-shake carrier moves perpendicular to the optical axis; wherein the anti-shake carrier depends on elastic force of the anti-shake spring when it moves perpendicular to the optical axis, and the anti-shake carrier will return to an initial position.