| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens module which is small-sized and has the small number of components and has a simple structure so as to be easily manufactured and can be stably driven. SOLUTION: The lens module includes: a driving member comprising a piezoelectric ceramic element 1 having one end side fixed to a stationary member and a magnet 2 fixed to the other end; a lens holder 4 having a cylindrical part; and an optical lens 8 supported by the lens holder 4. A moving member 3 made of a material capable of being attracted to the magnet 2 is formed in a part of the cylindrical part of the lens holder 4, and the magnet 2 is vibrated by vibrations generated by the piezoelectric ceramic element 1. The lens module has a function of moving the lens holder 4 along a direction of an optical axis of the optical lens 8 by using vibrations of the magnet 2 as a driving force to slide and drive the moving member 3 and is provided with a lens holder supporting member which supports the lens holder 4 directly or indirectly from the outside of the cylindrical part of the lens holder 4. COPYRIGHT: (C)2009,JPO&INPIT
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