Patent ID: 7586702

Claim:
A camera module comprising: a lens unit comprising a lens barrel and a lens securely received in the lens barrel; a magnet fixedly mounted around the lens barrel; a stator receiving the lens unit and the magnet therein, the stator comprising a coil seat and a coil wound therearound, the coil establishing a magnetic field when an electric current is applied thereto, the magnetic field of the coil interacting with a magnetic field of the magnet to generate a magnetic force driving the lens unit into telescopic movement; and an elastic element comprising at least one rib, the at least one rib comprising a fixed end connected with the stator and an opposite movable end, the moveable end of the elastic element moving together with the lens unit with respect to the fixed end of the elastic element to cause the at least one rib to deform and generate an elastic force during the telescopic movement of the lens unit, the lens unit stopping at a focal position when the magnetic force and the elastic force come to a balance.