Actuator
This invention is an actuator including a vibration member to which a piezoelectric element is fixed, a plurality of projections arranged at node positions of a tertiary stationary wave on the vibration member, another plurality of projections arranged at node positions of a quintic stationary wave...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | This invention is an actuator including a vibration member to which a piezoelectric element is fixed, a plurality of projections arranged at node positions of a tertiary stationary wave on the vibration member, another plurality of projections arranged at node positions of a quintic stationary wave on a vibration member, a rotating member which is in press contact with these projections, and a fixing member for holding the vibration member and pivotally holding the rotating member. A tertiary or quintic stationary wave is selectively excited in the vibration member to rotate the rotating member in one direction or another direction. |
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