发明授权
- 专利标题： Vibration wave motor
- 专利标题（中）： 振动马达
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申请号： US16734申请日： 1987-02-20
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公开(公告)号： US4771203A公开(公告)日： 1988-09-13
- 发明人: Hitoshi Mukohjima , Ichiro Okumura , Tohru Kawai , Takayuki Hirano
- 申请人： Hitoshi Mukohjima , Ichiro Okumura , Tohru Kawai , Takayuki Hirano
- 申请人地址： JPX Tokyo
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX61-038911 19860224; JPX61-054409 19860312; JPX61-306002 19861222
- 主分类号： H01L41/09
- IPC分类号： H01L41/09 ; H02N2/16 ; H01L41/08
摘要：
A vibration wave motor for generating a travelling vibration wave in a vibration member by applying a periodic voltage to an electro-mechanical energy transducer. An anti-movement device is provided to contact the vibration member at a pitch not equal to a multiple of n.lambda./2, where n is an integer and .lambda. is the wavelength of a vibration wave so that the vibration member is prevented from rotating without reducing the drive efficiency of the motor.
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