| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens driving apparatus having an impact-resistant structure while accomplishing the miniaturization. SOLUTION: The lens driving apparatus is provided with a fixed frame 10 having a cylindrical part 12, a lens frame 20 supported so that it may freely move in the optical axis direction L in the cylindrical part 12, and also, for holding lenses G1 to G3, and a cam ring 30 freely rotatably supported in the cylindrical part 12, also, having a cam part 32 for imparting a cam operation in the optical axis direction L while engaging with a cam follower part 21, the cam part 32 is formed so that it can be elastically deformed with the impulsive force applied on the lens frame 20. By having such the constitution, the cam part 32 has a cam function and also an impact absorbing function, then, the impact-resistant structure is obtained while accomplishing the miniaturization. COPYRIGHT: (C)2006,JPO&NCIPI
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