| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a small, high-output, and high-efficiency vibration wave driving device. <P>SOLUTION: The vibration wave driving device includes a vibrator 17 having a piezoelectric element 9 and each elastic body 7 respectively provided on axial both sides of the piezoelectric element 9. One elastic body 7b is in contact with a rotor 16 while the other elastic body 7a is in a non-contact state with other members. <P>COPYRIGHT: (C)2011,JPO&INPIT |
