| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a lens driving device where magnetic field formed by a magnet and a yoke is effectively made to act on a coil and which achieves miniaturization in a moving direction (front-and-rear direction) of a lens supporting body, and also to provide a camera and a mobile phone with the camera. <P>SOLUTION: In a lens driving device 1, a magnet 13 is arranged to be spaced in a circumferential direction on an inner peripheral surface of an outer circumferential wall 3a of the yoke 3, and a lens supporting body 7 is moved back and forth along an optical axis direction of a lens by electromagnetic force generated by electrically energizing a coil 15. The coil 15 is fixed on an outer circumference of the lens supporting body 7, and a cut-off part 12 is provided on an inner peripheral wall 3b of the yoke 3 corresponding to a position between the adjacent magnets 13 and 13. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
