发明名称 |
METHOD AND DEVICE FOR CONTROLLING WRINKLES IN A VIBRATILE DIAPHRAGM |
摘要 |
<p>920 A method and device for significantly improving the efficiency and sensitivity of an electroacoustical transducer. A relatively inelastic vibratile diaphragm is preformed to the shape of a mating backplate prior to the time it is actually mated to said backplate. By such preforming, the efficiency and sensitivity reducing effects from a wrinkled transducer diaphragm are minimized in that said wrinkles move to a diaphragm region where they have no effect on transducer sensitivity when the backplate is subsequently mated to said diaphragm.</p> |
申请公布号 |
CA1138090(A) |
申请公布日期 |
1982.12.21 |
申请号 |
CA19790326336 |
申请日期 |
1979.04.25 |
申请人 |
POLAROID CORPORATION |
发明人 |
REYNARD, JOHN M.;CARIGNAN, THOMAS N.;PAGLIA, RICHARD;RICH, JOSEPH F. |
分类号 |
H04R7/24;H04R19/00;H04R31/00;(IPC1-7):H04R1/00 |
主分类号 |
H04R7/24 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|