| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve miniaturization while incorporating a linear motor for a focus drive, an MR sensor, an optical sensor, and an aperture device in a lens barrel. <P>SOLUTION: The lens barrel includes: a fixed barrel 99; a lens frame 103; a movable lens group 101; a first guide shaft 109 and a second guide shaft 111; first and second linear motors; a movable lens unit including a first position detecting device 3, a second position detecting device 125 and a wiring member 120; and an aperture unit adjoined to the movable lens unit and including an aperture motor 171. The first guide shaft 109 and the second guide shaft 111 are provided substantially symmetric about an optical axis. When a central line passing through the respective centers of the first guide shaft 109 and the second guide shaft 111 is defined as a boundary, a clearance in which the first linear motor and the wiring member 120 are stored and a clearance in which the aperture motor 171 is inserted are provided in one side of the boundary, and the second linear motor, the first position detecting device 3 and the second position detecting device 125 are provided in the other side of the boundary, around the movable lens unit 101. <P>COPYRIGHT: (C)2013,JPO&INPIT |
