Patent ID: 8089703

Claim:
A lens driving apparatus comprising: a base formed at a center thereof with a first opening; a housing coupled with the base and having a second opening corresponding to the first opening; a yoke installed on the base having a third opening corresponding to the first opening; a bobbin movably disposed between the base and the housing, wherein the bobbin is coupled with a lens module; a coil disposed around the bobbin; a plurality of magnets provided at yoke to face the coil; and at least one spring disposed on at least one of upper and lower portions of the yoke to return the bobbin, which has moved up due to interaction between the plurality of magnets and the coil, to its initial position, wherein the plurality of magnets include at least four magnets, wherein each of the plurality of magnets includes an upper surface, a lower surface, and side surfaces, and wherein the side surfaces facing to an external away from the coil include a plurality of flat planes.