| 摘要 |
PROBLEM TO BE SOLVED: To provide an electromagnetic transducer that smoothly performs bending operation, and easily forms a winding shape and a wavy shape in a specified direction. SOLUTION: The electromagnetic transducer comprises: a vibration film 2, where a specified conductive pattern 3 is formed by a conductive material; a plurality of yoke materials 1, or the like; and a plurality of magnets 4, or the like arranged so that N and S poles appear alternately in a specified direction toward the conductive pattern 3 in each yoke material 1. A magnetic field for crossing the conductive pattern 3 is generated by using a magnet 4, or the like, and a drive current is supplied to the conductive pattern 3, thus vibrating the vibration film 2 by electromagnetic force applied to the conductive pattern 3. The vibration film 2 can be bent in a specified direction, and a plurality yoke materials 1, or the like are arranged with an appropriate interval in a specified direction without disturbing the bending of the vibration film 2. COPYRIGHT: (C)2005,JPO&NCIPI
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