Patent ID: 7459832
Filing Date: 2008-12-02
Classification: H01L,H02N

Abstract:
1. A vibration wave driving apparatus comprising: a vibrator including; wherein the vibrator generates a plurality of bending vibrations in a direction substantially orthogonal to the shaft by the vibration generated by the electro-mechanical energy converter, and the plurality of bending vibrations are combined to induce circular motion on the surface of the elastic body; and a contact body which comes into contact with the vibrator and is driven by the circular motion induced on the surface of the elastic body, wherein the electro-mechanical energy converter includes a plurality of electrode films on the same plane, each electrode film separated from its neighbor by a boundary of non-conductive part, a cross section of the plane is a polygonal area and the electrode film boundary is provided in an area that does not include the vertex of the polygonal area.