| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a lens barrel strong against impact.SOLUTION: A lens barrel 100 comprises: a cam frame 150 having a first group cam groove 210; a cylindrical member 119 extending in an optical axis direction; a first group frame 110 formed on the cylindrical member 119 having a first group cam follower 111 which engages with the first group cam groove 210; and a master flange 190. The first group cam follower 111 is provided in an end area on the external periphery of the cylindrical member 119 in optical axis direction. The cylindrical member 119 has plural protruding portions 114 protruding in the optical axis direction formed on the end of a portion in the optical axis direction where the first group cam follower 111 is provided. Each of the protruding portions 114 has a contact which is formed to come into contact with the master flange 190 in a collapsed state of the first group frame 110.</p> |
