| 摘要 |
An actuator, including: a substrate; a middle plate supported above the substrate to be rotatable, about a rotation axis, with respect to the substrate; a stage connected to and spaced above the middle plate; a pair of first driving electrodes located on the substrate around the rotation axis; and a pair of second driving electrodes located on the substrate surrounding the first driving electrodes. Torsion springs connect opposite sides of the middle plate to support the middle plate above the substrate. A connecting member connects the stage and middle plate.
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