发明名称 |
An electroacoustic transducer |
摘要 |
An electroacoustic transducer comprising a magnetic circuit of a magnetically conductive material with a pair of opposed surfaces defining a gap therebetween, the magnetic circuit comprising a magnet inducing a magnetic field in the gap, the magnet having a surface constituting one of the opposed surfaces. The magnetic circuit further comprises a diaphragm and a coil having electrically conducting paths secured to the diaphragm. The coil has portions of its paths situated in the gap. <IMAGE> |
申请公布号 |
EP1439731(A1) |
申请公布日期 |
2004.07.21 |
申请号 |
EP20040075735 |
申请日期 |
2002.01.25 |
申请人 |
SONIONKIRK A/S |
发明人 |
JOHANNSEN, LEIF;HANSEN, KAJ BORGE |
分类号 |
H01F7/06;H01F27/30;H01F41/06;H01F41/10;H04R7/04;H04R7/12;H04R9/02;H04R9/04;H04R9/06;H04R9/08 |
主分类号 |
H01F7/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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