Vibration wave driving device and method of processing vibrating member or moving member for use in vibration wave driving device

A vibration wave driving device, comprising:

• a vibrating member, including an elastic member and an electro-mechanical energy conversion element, which generates vibration when a drive signal is applied to the electro-mechanical energy conversion element;
• and
• a moving member contacting the vibrating member and driven by the vibration,
• wherein contact portions of the vibrating member and the moving member are formed such that at least one contact portion protrudes toward the other contact portion and that the vibrating member or the moving member having the protruding contact portion has in a same plane as an end surface of the protruding contact portion a surface of a part other than the protruding contact portion, and
• wherein the vibrating member has a frictional member on the portion contacting the moving member, and the protruding contact portion is formed on the frictional member.

A method of processing a moving member of a vibration wave driving device, the device including a vibrating member which has an elastic member and an electro-mechanical energy conversion element and which generates vibration when a drive signal is applied to the electro-mechanical energy conversion element, and where an elastic spring member fixed to a main body of the moving member press contacts the moving member against the vibrating member and the moving member thereby is driven by the vibration, the method comprising:

• fixing the spring member to the main body;
• grinding one of an end surface of the main body and an end surface of the spring member until both end surfaces are positioned in a same plane;
• and
• simultaneously polishing the end surface of the main body and the end surface of the spring member.