Invention Grant
- Patent Title: Vibrating apparatus, driving apparatus having the vibrating apparatus, and optical device
- Patent Title (中): 振动装置,具有振动装置的驱动装置和光学装置
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Application No.: US13789338Application Date: 2013-03-07
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Publication No.: US09052499B2Publication Date: 2015-06-09
- Inventor: Kaishi Ohashi , Toshifumi Urakami , Toshihiro Ifuku , Yasushi Shimizu , Tatsuo Furuta , Takanori Matsuda , Makoto Kubota , Jumpei Hayashi
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Canon USA, Inc. IP Division
- Priority: JP2012-063898 20120321
- Main IPC: G02B1/00
- IPC: G02B1/00 ; G02B27/00 ; H01L41/43 ; H01L41/04 ; H01L41/09 ; H01L41/187 ; H02N2/00 ; H04N5/217 ; H01L41/18 ; H02P25/02 ; H04N5/225

Abstract:
A vibration apparatus includes a vibrating body that includes a piezoelectric material having a lead content of less than 1000 ppm, and has an electromechanical energy converting element having an electrode; and a control unit that applies at least two driving voltages to the electromechanical energy converting element, and generates a combined vibration by providing a time phase difference to the vibrating body and generating multiple stable waves having mutually different orders; wherein the control unit changes 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.
Public/Granted literature
- US20130250417A1 VIBRATING APPARATUS, DRIVING APPARATUS HAVING THE VIBRATING APPARATUS, AND OPTICAL DEVICE Public/Granted day:2013-09-26
Information query
IPC分类:
G | 物理 |
G02 | 光学 |
G02B | 光学元件、系统或仪器 |
G02B1/00 | 按制造材料区分的光学元件;用于光学元件的光学涂层 |