| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce occurrence of collision noise when a movable lens frame that does not have a self-holding force in an optical-axis direction in a nonenergized state contacts a movable lens frame that has a self-holding force and to reduce degradation in movement accuracy of each movable lens frame, resulting from the contact of the movable lens frame. <P>SOLUTION: The lens barrel includes the first movable frame configured to hold a first optical element, be movable in an optical-axis direction, and hold a position of the optical element in the optical-axis direction in a nonenergized state; the second movable frame configured to hold an optical element, be movable in the optical-axis direction, and not hold a position of the optical element in the optical-axis direction in the nonenergized state; and a shock-absorbing part provided at least one of the first and the second movable frames. In the nonenergized state, the first movable frame is positioned within a range in which the second movable frame is movable. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
