发明名称 |
Piezoelectric loudspeaker and a method for manufacturing the same |
摘要 |
Disclosed is a piezoelectric loudspeaker. According to the present invention, a piezoelectric loudspeaker comprises: a flat compound piezoelectric sheet in which multiple piezoelectric devices are arranged in an organic material; electrodes which are provided on respective surfaces of the compound piezoelectric sheet; an acoustic impedance matching support layer for maintaining the flat compound piezoelectric sheet in a curved shape and for matching an acoustic impedance; and a support frame for supporting the compound piezoelectric sheet at its circumference. Thus, sound reproduction with a desirable frequency properties that have little distortion can be performed.
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申请公布号 |
US5684884(A) |
申请公布日期 |
1997.11.04 |
申请号 |
US19950456101 |
申请日期 |
1995.05.30 |
申请人 |
HITACHI METALS, LTD.;HITACHI LTD |
发明人 |
NAKAYA, CHITOSE;JOMURA, SHIGERU;ENDO, JURO |
分类号 |
H04R17/00;(IPC1-7):H04R25/00 |
主分类号 |
H04R17/00 |
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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