| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a less-wearing vibration actuator that produces low noise. <P>SOLUTION: The vibration actuator 100 includes a vibrator 32 vibrated by excitation of electromechanical transducers 33, 34 and a relative movement member 120 that is touched by the vibrator 32 under a pressure and driven by the vibration and is thereby moved relative to the vibrator 32. The density of the relative movement member 120 is lower than that of the vibrator 32 and the Young's modulus of the relative movement member 120 is higher than that of the vibrator 32. <P>COPYRIGHT: (C)2011,JPO&INPIT |
