ACTUATOR

摘要

An actuator (1) is provided with a movable part (120), a support part (110, 210) that supports said movable part, and a plurality of torsion bars (230) that: (i) each connect the movable part and the support part to each other in a long direction such that the movable part can swing about an axis of rotation in said long direction; and (ii) are arranged in a short direction. The farther each torsion bar is from the axis of rotation, the lower the spring constant of that torsion bar is.