| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lens drive mechanism hardly receiving influence of vibration impact and capable of preventing generation of a bite upon abnormal operation by a simple construction. <P>SOLUTION: The lens drive mechanism 30 includes a driving source 301, a lead screw 302 attached to the driving source 301 and rotated by the drive of the drive source 301, a nut member (not shown) screwed together with the lead screw 302 and variably moved by rotation of the lead screw 302, a lens holding part 304 provided so as to be moved by movement of the nut member and holding a lens, guide members 305a and 305b guiding the lens holding part 304 so as to be moved in the same direction as the moved direction of the nut member and a plate spring member 308 energizing the nut member, when the nut member is positioned in a position in the vicinity of either one screw end part of the lead screw 302, toward the other screw end part. <P>COPYRIGHT: (C)2010,JPO&INPIT |
