Patent ID: 8547653

Claim:
A lens barrel comprising: a lens which is retained by a retaining frame pivotally supported by a shaft portion parallel to an optical axis, and is configured to move between a non-photographing position and a photographing position in a plane perpendicular to the optical axis by rotation of the retaining frame about the shaft portion, a protuberance provided at the retaining frame and formed so as to protrude in a direction perpendicular to the optical axis, a moving member configured to move with respect to the retaining frame, and which includes a retaining face portion which, in a state where the retaining face portion abuts the protuberance, retains the lens in the non-photographing position, and a recessed portion formed at one portion of the retaining face portion, and a main body portion at which the shaft portion is retained and moveable relative to the moving member, wherein: the protuberance moves between a state where the protuberance abuts the retaining face portion, and a state where the protuberance is accommodated in the first recessed portion, in accordance with a movement of the moving member, the lens is maintained in the photographing position in the state where the protuberance is accommodated in the first recessed portion, a second recessed portion is provided in the retaining frame, a protruding portion corresponding to the second recessed portion is provided in the main body portion, and the retaining frame moves in the optical axis direction with respect to the main body portion, coupled with a rotating movement about the shaft portion, due to the change in the state of the engagement between the second recessed portion and the protruding portion.