| 摘要 |
PROBLEM TO BE SOLVED: To provide a multi-functional vibration actuator that improves sound pressure in acoustic reproduction without changing area required for mounting to an attachment substrate and can flatten vibration characteristics when somesthetic vibrations occur and can increase the amount of vibration. SOLUTION: A cutout section is provided at a magnetic circuit attachment section having a yoke, and the diameter of a voice coil is set over an edge portion in a diaphragm, thus increasing the amount of vibration when somesthetic vibrations occur without changing the entire size of a multi-functional vibration actuator, and improving sound pressure in acoustic reproduction. COPYRIGHT: (C)2009,JPO&INPIT |
