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

Vibrating apparatus, driving apparatus having the vibrating apparatus, and optical device
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.
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