Patent Number: 6,674,217

Title: VIBRATION MEMBER USING ELECTRO-MECHANICAL ENERGY CONVERSION ELEMENT ASDRIVING SOURCE, VIBRATION WAVE DRIVING APPARATUS USING VIBRATION MEMBER ASDRIVING SOURCE AND APPARATUS PROVIDED WITH VIBRATION WAVE DRIVINGAPPARATUS

Abstract: There is disclosed a vibration member comprising: a driving portion; anelastic member including the driving portion; and an electro-mechanicalenergy conversion element as a driving source in contact with the elasticmember. The electro-mechanical energy conversion element is provided withan alternating signal to generate a plurality of vibrations, and theplurality of vibrations are combined to generate a driving vibration inthe driving portion. An ununiformity of rigidity of the vibration membercaused by a polarization treatment performed on the electro-mechanicalenergy conversion element is offset by partially changing the rigidity ofthe vibration member, so that a stable driving vibration of the vibrationmember can be outputted.

Inventors: Fujimoto; Kosuke (Kawasaki, JP)

Assignee:

International Classification: H01L 41/09 (20060101); H01L 041/08 ()

Expiration Date: 01/02016