Patent ID: 8602665

Claim:
A lens module comprising: a lens forming an image of an object; a lens holder to hold an outer peripheral side of the lens to allow reciprocal movement in an optical axis direction of the lens; a housing at least one end side of which is opened, which includes a cylindrical receiving part having an inner surface, one surface of which, at a lateral side, contacts one surface of the lens holder at the lateral side perpendicular to the optical axis direction, and which receives the lens holder in the receiving part to allow reciprocal movement in the optical axis direction of the lens and in a sliding state, without any spring between the lens holder and the housing, and the one surface of the lens holder is free of protrusions to smoothly engage the one surface of the cylindrical receiving part; and an actuator part including a movable part which is displaced by a displacement amount corresponding to a level of an applied drive voltage and reciprocates the lens holder received in the housing between a first position and a second position in the optical axis direction, the movable part is configured to bend when the movable part is applied with the applied drive voltage, and one end of the movable part is fixed outside of the housing.