A lens barrel (3) holding an imaging lens (2) is inserted into a carrier (5) accommodated in an actuator (4), and the carrier (5) is held at a position in an optical axis direction of the imaging lens (2) by the actuator (4). The position of the imaging lens (2) in the optical axis direction and the eccentricity of the imaging lens (2) are adjusted on the basis of imaging information of an image sensor (6), and the lens barrel (3) is fixed to the carrier (5).