CAMERA MODULE AUTOFOCUS ACTUATOR AND CONTROL METHOD THEREOF

摘要

Autofocus actuator for camera modules and control method thereof, the autofocus actuator incorporating a shape memory alloy wire (17) as actuating element, at least 4 spheres (14) as sliding aids, and including a return elastic element (13) mounted between an autofocus housing (12) and a lens carrier and exerting a force only in the optical axis direction.