Patent ID: 8823815
Filing Date: 2014-09-02
Classification: G02B,G03B,H04N

Abstract:
1. A camera module which has an image stabilizing function comprising: an image pickup element that converts an optical signal into an electric signal; and a lens drive device for driving an image pickup lens through which light enters the image pickup element, the image pickup lens being driven in a direction of an optical axis and two axial directions perpendicular to the optical axis, the lens drive device including: a movable section including the image pickup lens; a fixed section surrounding the movable section; driving means for driving the movable section in a direction perpendicular to the optical axis of the image pickup lens; a suspension wire that extends parallel or obliquely to the optical axis and supports the movable section so that the movable section is driven in the direction perpendicular to the optical axis; an elastic body which is connected to at least one end of the suspension wire and prevents buckling of the suspension wire; and a locking member that defines a moving range of the movable section in the direction of the optical axis, the suspension wire and the elastic body each having a spring constant that is set so that a maximum value of stress does not exceed buckling stress and yield stress of the suspension wire, the maximum value of stress being defined by a deformation amount in a longitudinal direction of the suspension wire at the time when the movable section moves in the moving range.