Patent ID: 8610983

Claim:
An actuator which tilts and drives an object to be driven around an axis of rotation, comprising: a pair of supporting beams arranged to support the object to be driven from both sides thereof in a direction parallel to the axis of rotation; a pair of movable frames arranged to sandwich the object to be driven and the pair of supporting beams from both sides in a direction perpendicular to the axis of rotation; a drive source arranged to apply bending vibration to the movable frames; and a pair of connection parts arranged to connect the movable frames and end portions of the supporting beams by a beam structure, convert the bending vibration into torsional vibration, and transmit the torsional vibration to the supporting beams, wherein the end portion of each supporting beam extends outward from a width of each movable frame along the axis of rotation, and each connection part has the beam structure that includes a beam transversely extending from the end portion of the supporting beam on both sides of the end portion in a direction intersecting the axis of rotation and connected to the movable frames.