Vibration actuator having a supporting member to support a vibration member

摘要

A vibration actuator having improved drive efficiency by preventing the generation of noise and unnecessary vibrations. The vibration actuator includes a vibration member to generate vibration in contact with a relative movement member and a supporting member to support the vibration member. The supporting member includes a plurality of position determining members in contact with vibration member at different locations. At least one of the plurality of position determining members provides the vibration member with an energy imparting force.