Lens barrel

A lens barrel, comprising:

• an actuator configured to drive a lens back and forth along an optical axis direction;
• and
• a lens frame that holds the lens and configured to be driven back and forth along the optical axis direction together with the lens by the actuator;
• the actuator is disposed more to an outer peripheral side than an outer peripheral surface of the lens frame, and has:
• two permanent magnets disposed substantially in parallel and spaced apart, with same poles facing each other;
• a yoke unit that includes a center yoke portion provided between the two permanent magnets facing each other at a position in which a center of the center yoke portion is offset from a center of the two permanent magnets toward an outer peripheral side with respect to a center of an optical axis of the lens, a back yoke portion provided at a position in contact with a surface on an opposite side from facing poles of the permanent magnets, and a yoke that magnetically couples the center yoke portion and the back yoke portion;
• and
• a coil that is wound so as to surround the center yoke portion, and a center of which is provided at a position offset from a center of the two permanent magnets to the outer peripheral side with respect to the optical axis center of the lens.