| 摘要 |
Disclosed is a lens barrel for conducting zooming by moving at least first and second lenses in the direction of an optical axis. The lens barrel includes a plate cam arranged to be pivoted by the movement of the first lens in the direction of the optical axis, the plate cam having at least a first cam portion for the second lens, and a moving mechanism having a first cam follower which is in contact with the first cam portion of the plate cam, the moving mechanism moving the second lens in the direction of the optical axis when the plate cam is pivoted.
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