发明名称 |
COAXIAL TYPE FLAT SPEAKER |
摘要 |
PURPOSE:To make the frequency characteristic flat by forming an edge of an up-roll adhered to a diaphragm of each range that a volume raised over the face of the diaphragm is equal or nearly equal to a volume of a part lowered from the face of the diaphragm. CONSTITUTION:The edges 6a, 6b are formed as the up-roll and the volume A for the part raised over the face of the diaphragm of the edges 6a, 6b and volume B at a part lowered from the face of the diaphragm are made equal or nearly equal so as to minimize the interference effect of sound due to a groove on a concentric circle of a tweeter and the resonance of the edges 6a, 6b is minimized. Thus, the frequency characteristic of the tweeter is made flat as shown in Fig. |
申请公布号 |
JPS6019399(A) |
申请公布日期 |
1985.01.31 |
申请号 |
JP19830128309 |
申请日期 |
1983.07.13 |
申请人 |
MATSUSHITA DENKI SANGYO KK |
发明人 |
YOSHIKAWA AKIRA;TANAKA SHIYOUJI |
分类号 |
H04R7/20;H04R1/24;H04R7/04;H04R7/12;H04R9/06;(IPC1-7):H04R7/20 |
主分类号 |
H04R7/20 |
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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