| 摘要 |
An inertial drive actuator includes a fixed member, a displacement generating mechanism of which, one end is adjacent to the fixed member, and a displacement is generated at the other end thereof, a driving mechanism which applies a voltage for displacing the displacement generating mechanism, a vibration substrate which is connected to the other end of the displacement generating mechanism, and which is displaceable in a direction of displacement, a mobile object which is disposed to be facing a vibration substrate electrode provided to the vibration substrate, and which moves with respect to the vibration substrate by an inertia, and a friction controlling mechanism which changes a frictional force between the mobile object and the vibration substrate. A regulating member which regulates the movement of the mobile object is provided to at least one of the fixed member and the vibration substrate such that the mobile object moves in a direction of displacement of the vibration substrate or in a direction other than the direction of displacement.
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