| 摘要 |
In a vibration driven motor or actuator, which has members for generating a first bending vibration and a second bending vibration in a direction different from the first bending vibration therein, and in which a combined vibration of the first bending vibration and the second bending vibration is caused, rigidities in two directions of the vibration member are set to be equal to or substantially equal to each other.
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