| 摘要 |
A lens mechanism that has a stationary barrel and a movable barrel which is moved inside the stationary barrel. The lens mechanism includes a lead portion provided on an inner periphery of the stationary barrel. A driven portion has a predetermined length along an optical axis direction, and includes a follower portion that engages with the lead portion. The driven portion also includes a first gear portion having a plurality of teeth and a second gear portion having a plurality of teeth, where the first gear portion is spaced from the second gear portion. The first gear portion and the second gear portion are separately provided from the follower portion. A driving gear drives the first gear portion, and a driven gear is driven by the second gear portion.
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