| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a zoom lens barrel and a digital camera capable of achieving a reduction in the size and simplification of the structure. <P>SOLUTION: A zoom lens barrel 1 includes a two-group lens holding frame 8, a first cam cylinder 6, a second cam cylinder 7, and cam cylinder moving means (cam grooves 16 and cam followers 25) for moving the second cam cylinder 7 relative to the first cam cylinder 6 in an optical axis X direction. The first cam cylinder 6, the second cam cylinder 7, the cam followers 25 and the cam grooves 16 are configured such that when the first cam cylinder 6 and the second cam cylinder 7 are arranged at predetermined positions, respectively, in the optical axis X direction, cam grooves formed on the second cam cylinder 7 are continuous with cam grooves 33 formed on the first cam cylinder 6, and cam followers 38 provided on the two-group lens holding frame 8 are allowed to move between the cam grooves on the second cam cylinder 7 and the cam grooves 33 on the first cam cylinder 6. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
