| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens barrel for removing engagement backlash and securing stable movement in the optical axis direction.SOLUTION: The lens barrel 1 includes a first frame member 12 moving in the optical axis O direction, a first cam follower 12a disposed in the first frame member, a second cam follower 14a that is disposed relatively movably in the optical axis direction with respect to the first frame member and moves in the optical axis direction together with the first frame member, an biasing member 15 that is disposed between the first cam follower and the second cam follower and biases the first cam follower and second cam follower in the optical axis direction, and a second frame member 13 having a first cam groove engaging with the first cam follower in order to drive the first frame member in the optical axis direction and a second cam groove 13a engaging with the second cam follower in parallel with the first cam groove 13a. |
