发明公开
EP2642545A3 Vibrating apparatus, driving apparatus having the vibrating apparatus, and optical device
审中-公开
与所述振动装置和光学装置的振动元件驱动装置
- 专利标题: Vibrating apparatus, driving apparatus having the vibrating apparatus, and optical device
- 专利标题(中): 与所述振动装置和光学装置的振动元件驱动装置
-
申请号: EP13157183.8申请日: 2013-02-28
-
公开(公告)号: EP2642545A3公开(公告)日: 2014-12-31
- 发明人: Ohashi, Kaishi , Urakami, Toshifumi , Ifuku, Toshihiro , Shimizu, Yasushi , Furuta, Tatsuo , Matsuda, Takanori , Kubota, Makoto , Hayashi, Jumpei
- 申请人: Canon Kabushiki Kaisha
- 申请人地址: 30-2 Shimomaruko 3-chome Ohta-ku Tokyo 146-8501 JP
- 专利权人: Canon Kabushiki Kaisha
- 当前专利权人: Canon Kabushiki Kaisha
- 当前专利权人地址: 30-2 Shimomaruko 3-chome Ohta-ku Tokyo 146-8501 JP
- 代理机构: TBK
- 优先权: JP2012063898 20120321
- 主分类号: H01L41/43
- IPC分类号: H01L41/43 ; H01L41/04 ; H01L41/09 ; H01L41/187 ; H02N2/00 ; H04N5/225 ; G02B27/00 ; H04N5/217
摘要:
A vibration apparatus includes a vibrating body (3) that includes a piezoelectric material having a lead content of less than 1000 ppm, and has electromechanical energy converting means (2, 2a, 2b) having an electrode (9); and control means (100) that apply at least two driving voltages to the electromechanical energy converting means (2, 2a, 2b), and generates a combined vibration by providing a time phase difference to the vibrating body (3) and generating multiple stable waves having mutually different orders; wherein the control means (100) change at least one of the voltage amplitude ratio and time phase difference of at least two driving voltages, so as to change the amplitude distribution of the combined vibration.
公开/授权文献
信息查询
IPC分类: