Patent ID: 8350446

Claim:
A vibratory actuator comprising: an actuator body formed of or formed to include a piezoelectric element, and configured to perform a plurality of vibrations having different vibration directions; and a plurality of driver elements provided on a mounting surface which is one of side surfaces of the actuator body, and configured to perform an orbital motion in accordance with the vibrations of the actuator body to output a driving force in a predetermined driving direction, the plurality of driver elements comprising all driver elements on the mounting surface, wherein: the plurality of driver elements includes driver elements on the mounting surface, at different positions in a direction along the driving direction and different positions in a direction along a perpendicular direction to the driving direction, at least one of the plurality of driver elements is offset relative to the remaining plurality of driver elements in the perpendicular direction, and each of the plurality of driver elements is offset in the perpendicular direction relative to the remaining plurality of driver elements.