Patent ID: 6970299

Claim:
A lens driving mechanism, comprising: a lens holder that holds a lens and has a bearing section for receiving an axis for guiding the lens to move in an optical axis direction; driving means that has an output axis, in which a screw section to which a nut is screwed is formed, and a driving source for rotating the output axis; an arm that is provided by extending the lens holder, in such a way that a tip being located next to the nut of the driving means, and moves the lens holder with movement of the nut; forcing means for forcing the tip of the arm in a direction to the nut; and an idle rotation section that is placed on one side, on which the arm is placed for the nut, at an end of the output axis of the driving means, and has an axis diameter which disables the nut to be screwed, wherein the forcing means contacts an imaging device side of the bearing section.