| 摘要 |
<p>A vibration actuator by which stable drive can be obtained, a lens barrel, a camera system and a vibrating element are provided. In first vibration mode and second vibration mode, vibrating elements (11, 11A, 11B) of the vibration actuator can vibrate. Resonance frequency of the second vibration mode, which is different from the first vibration mode used for driving a relatively moving member (15), is prevented from being same as the frequency of the higher harmonic of a driving signal.</p> |
