| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a mechanism which can improve visual quality of an image in a display unit during focusing operation and can achieve downsizing of a lens barrel. <P>SOLUTION: A lens barrel includes: a lens unit; a cam cylinder 206 in which a cam groove for moving the lens unit in an optical axis direction is formed in an inner peripheral portion; a holding frame 301 which is disposed movable in the optical axis direction with respect to the lens unit and holds an image pickup element for performing photoelectric conversion of a subject image passing through the lens unit; a driving ring 207 which is disposed between the cam cylinder 206 and the holding frame 301 and is provided rotatable in a state of being in contact with the cam cylinder 206 in an axis direction; driving means which drives the driving ring 207; and cam means 207e and 301d that are provided between the driving ring 207 and the holding frame 301 and move the holding frame 301 in the optical axis direction with respect to the driving lens 207 by cam action caused by rotation of the driving ring 207. <P>COPYRIGHT: (C)2013,JPO&INPIT |
