ACTUATOR, DRIVE DEVICE, LENS UNIT, IMAGE-CAPTURING DEVICE

摘要

It is an objective of the present invention to provide an actuator that can efficiently enlarge a displacement amount of a moving element. Provided is an actuator that moves a moving element, comprising a drive element that contacts the moving element; a drive unit that moves the moving element in a movement direction by moving a contact portion of the drive element contacting the moving element in the movement direction and in an opposite direction that is opposite the movement direction, such that movement speed in the opposite direction is greater than movement speed in the movement direction; and a displacement enlarging section that joins the drive unit and the drive element to each other, and transmits enlarged displacement of the drive unit to the drive element.