| 摘要 |
PURPOSE:To improve the performance by packing countless carbon particles each having a hollow and a resin adhesive combining the carbon particles, in a cell of a diaphragm core to increase the bending rigidity and to reproduce a signal up to a high frequency without introducing cell resonance. CONSTITUTION:The infinite carbon particles each having the hollow 11a and the resin adhesive 12 combining the particles 11 are packed in the cell 1a of the diaphragm core 1. The bending rigidity to the same thickness of the diaphragm is increased in the speaker diaphragm constituted in such a way. Then no resonance of the cell 1a takes place, no split vibration occurs, the signal is reproduced up to a high frequency and a stable frequency characteristic is obtained at a wide band. |
