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

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

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 elect...

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Bibliographische Detailangaben
Hauptverfasser: URAKAMI, TOSHIFUMI, MATSUDA, TAKANORI, SHIMIZU, YASUSHI, OHASHI, KAISHI, KUBOTA, MAKOTO, HAYASHI, JUMPEI, FURUTA, TATSUO, IFUKU, TOSHIHIRO
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CLEANING
CLEANING IN GENERAL
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
GENERATION
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PERFORMING OPERATIONS
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
PREVENTION OF FOULING IN GENERAL
TRANSPORTING
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Beschreibung
Zusammenfassung: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.