Patent ID: 8587675

Claim:
An actuator, comprising: a stationary member defining a first receiving room and a central axis, four receiving holes respectively defined in four sides of the stationary member; a moveable member received in the first receiving room and being apart from the stationary member, the moveable member being coaxial with the stationary member; a driving member comprising a first magnetic assembly fixedly received in the four receiving holes and a second magnetic assembly fixed to the moveable member, the first magnetic assembly aligning with the second magnetic assembly, the driving member configured for driving the moveable member to move along a first axis and a second axis by magnetic interaction between the first magnetic assembly and the second magnetic assembly, the second axis being perpendicular to the first axis, the first axis and the second axis being perpendicular to the central axis; and a resilient spring assembly positioned between the stationary member and the moveable member and connecting the moveable member to the stationary member, the spring assembly being deformable when the moveable member moves.