发明名称 |
MAGNET SYSTEM FOR AN ELECTROACOUSTIC TRANSDUCER |
摘要 |
<p>PHN 9628 10 An electroacoustic transducer comprising a diaphragm provided with conductors and magnetic zones at both sides of the diaphragm for producing an energizing field at the location of the conductors. At the boundary areas of the magnetic zones auxiliary fields are produced in order to reduce stray fields at the location of the boundary areas. This results in a better concentration of the energizing magnetic field in the plane of the diaphragm, so that a stronger magnetic field is obtained at the location of the conductors.</p> |
申请公布号 |
CA1180101(A) |
申请公布日期 |
1984.12.25 |
申请号 |
CA19800364554 |
申请日期 |
1980.11.13 |
申请人 |
N.V. PHILIPS'GLOEILAMPENFABRIEKEN |
发明人 |
KOPINGA, WIERT;MIMMEL, HERBERT |
分类号 |
H04R9/00;H04R9/02;H04R9/04;(IPC1-7):H04R1/00 |
主分类号 |
H04R9/00 |
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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