Patent ID: 7843656

Claim:
A lens actuator, comprising: a lens barrel having a first end surface and an opposite second end surface; a plurality of convex stages and a plurality of stop blocks protruding out from the first end surface of the lens barrel, the height of each convex stage being greater than that of each stop block; a coil wrapped around the lens barrel; a plurality of magnets; a bracket for mounting magnets thereon and accommodating the lens barrel therein, the bracket having a first side and an opposite second side; and a resilient plate comprising an outer frame, an inner frame substantially coaxial with the outer frame, and a plurality of spring portions interconnected between the outer frame and the inner frame, the outer frame having a first surface and an opposite second surface; wherein the first surface of the outer frame of the resilient plate is fixed on the first side of the bracket, the inner frame of the resilient plate is fixed on the plurality of convex stages, the plurality of stop blocks faces the first surface of the outer frame and is configured for limiting a maximum travel of the lens barrel, and the difference in height between each convex stage and each stop block is equal to a maximum upward travel of the lens barrel.