Lens barrel

A lens barrel, comprising:

• a first frame body including a groove formed along a direction substantially parallel to an optical axis on an inner circumferential surface;
• a second frame body configured to be engaged by the first frame body;
• a support frame configured to be supported by the second frame body and move with respect to the second frame body within a first plane for image blur correction in an imaging enabled state, the first plane being perpendicular to an optical axis, the support frame having a protrusion protruding outwardly in a radial direction;
• and
• a retracting lens frame configured to be supported by the support frame and move around a retraction shaft during a transition period between an imaging enabled state and a housed state, the retraction shaft being substantially parallel to the optical axis,
• the second frame body, the support frame, and the retracting lens frame are configured to move in the optical axis direction with respect to the first frame body during the transition period between the imaging enabled state and the housed state, and
• the protrusion comes into contact with the groove and restricts a movable range of the support frame in the first plane so that the movable range of the support frame in the transition period is narrower than the movable range in the imaging enabled state, and the protrusion engages the groove to restrict a movement of the support frame within a second plane that is parallel to the first plane, during the transition period between the imaging enabled state and the housed state.