Patent ID: 8780456

Claim:
A lens barrel provided with a lens, comprising: a first frame that has a cam groove; and a second frame that has a cam follower to be engaged with the cam groove, wherein relative rotation between the first frame and the second frame causes the cam follower to move inside the cam groove, thereby changing the position of the second frame with respect to the first frame in an optical axis direction of the lens, the second frame has a raised portion on a side where the cam follower is formed, the first frame has a protrusion protruding from a side where the cam groove is formed, the cam groove has an inclined portion inclined with respect to a circumferential direction of the first frame, and in a case where the cam follower is located in the inclined portion of the cam groove, the raised portion and the protrusion come into contact with each other when an external force is applied to the optical axis direction of the lens.