| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To enhance a degree of freedom for an installation position and an installation direction of a light-emitting part for a power-feeding part in a decorative illumination device for supplying power by the electromagnetic induction to the light-emitting part from the power-feeding part. <P>SOLUTION: A feed side coil unit 7 is one in which three power-feeding coils 2(A-C) are wound so as to generate magnetic fields in different direction around a magnetic body 13, respectively. Each power-receiving part 6 is the one in which a power-receiving coil 5 wound around a magnetic body 14 is connected to a light-emitting element 4 to cover the whole thereof with a covering body 15. Each of the power-receiving part 6 can be arranged in any positional relationship on the surface of the power-feeding part 3. The selective driving of the power-feeding coils 2(A-C) causes induction of induction currents through the selected each power-feeding coil 2(A-C) and makes light-emitting elements 4(A-C) selectively emit light. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
