Patent ID: 8274748
Filing Date: 2012-09-25
Classification: G02B,H02K

Abstract:
1. A lens actuator comprising: a loading plate; a housing covering on the loading plate to form a first accommodating room therebetween, the housing comprising a top panel having at least two first fixing portions; a movable unit movably received in the first accommodating room; at least two magnetic elements received in the first accommodating room, spatially corresponding to the at least two first fixing portions and fixed on inner sidewalls of the housing; and a first resilient plate positioned between the top panel and the movable unit, the first resilient plate comprising a first outer closed-loop frame, a first inner closed-loop frame and a plurality of spring parts interconnected between the first outer closed-loop frame and the first inner closed-loop frame, wherein the movable unit is fixed on the first inner closed-loop frame, the first outer closed-loop frame comprises at least two second fixing portions spatially corresponding to the at least two first fixing portions, the at least two first fixing portions are configured for pressing the at least two second fixing portions on the at least two magnetic elements and are located off the movement path of the movable unit along an axial direction of the first accommodating room.