| 摘要 |
PURPOSE:To flatten the frequency characteristic by providing plural correcting diaphragms in almost parallel at constant intervals apart from the main diaphragm, on the outside circumference or the intermediate circumference of the main diaphragm, connecting said correcting diaphragms by plural supporting levers, and correcting the distortion of the main diaphragm. CONSTITUTION:Plural correcting diaphragms 5, 5a, 5b are provided on the outside circumference or the intermediate circumference of the main diaphragm 2 of a cone type speaker, these correcting diaphragms 5, 5a, 5b are arranged in almost parallel at constant intervals apart from the main disphragm 2. Also, the correcting diaphragms 5, 5a, 5b are supported and connected by plural supporting levers 6 fixed to the outside yoke 4. And when the sound volume has been increased, the distortion of frequency characteristic caused by the main diaphragm 2 is corrected by the correcting diaphragms 5, 5a, 5b, and the frequency characteristic of the speaker is flattened. |
