| 摘要 |
<p>Provided is a lens barrel (100) of which the size can be reduced. The lens barrel (100) is provided with a moving frame (101), a driving frame (103), and a straight guiding frame (102). The driving frame (103) has a cam mechanism part. The driving frame (103) guides the moving frame (101) in the optical axis direction by using the cam mechanism part (117). The straight guiding frame (102) supports the moving frame (101) in a manner such that the moving frame (101) does not rotate and can move in the optical axis direction. The driving frame (103) has a rotation guiding part (121). The rotation guiding part (121) supports the straight guiding frame (102) in a manner such that the straight guiding frame (102) can rotate relative to the cam mechanism part (117) and does not move in the optical axis direction. The rotation guiding part (121) is disposed on the outer circumferential side of the cam mechanism part (117) and the outer circumferential side of the moving frame (101). A housing space (S) into which a portion of the moving frame (101) can enter is formed between the cam mechanism part (117) and the rotation guiding part (121).</p> |
