| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens driving device quickly and precisely driving a lens with the reduced number of components. SOLUTION: A spring member 16 is hooked on a hook part 4d of a lens holding member 4 and a hook part 5c of a base member 5 to energize a focus lens 3 and a nut member 6 toward a screw part 7a of a screw member 7. Then, the screw member 7 is rotated to move the focus lens, and a piezoelectric element 13 is disposed on a bearing part of the screw member 7, and the screw member 7 is driven in a direction of an optical axis to move the focus lens. COPYRIGHT: (C)2009,JPO&INPIT
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