| 摘要 |
In one aspect of the present invention, a vibration member generates a first bending vibration on a first plane and a second bending vibration on a second plane transverse to the first plane, and a moving member is driven with a combined vibration of the first and second bending vibrations generated on the first and second planes. Herein, the vibration member is machined or made of different materials so that the directions of natural vibration modes will be determined forcibly. <IMAGE> |
