Patent ID: 7697181

Claim:
An actuator, comprising: a first vibrating system having a frame-like driving member and a pair of first axis members holding the driving member from both sides so that the driving member is rotatable about an X axis; a second vibrating system having a movable plate provided inside the driving member and a pair of second axis members holding the movable plate on the driving members from both sides so that the movable plate is rotatable about a Y axis orthogonal to the X axis; a driving unit including a permanent magnet provided on the driving member, a coil provided to oppose the permanent magnet and a voltage applying unit applying voltage to the coil; and a spacer sandwiched between the driving member and the permanent magnet so as to form space preventing intervention by the movable plate, the permanent magnet being provided such that a line segment connecting both poles of the permanent magnet inclines, in a plan view of the movable plate, with respect to the X axis and the Y axis, and the voltage applying unit including a voltage generating portion generating a first alternating voltage and a second alternating voltage having different frequencies and a voltage superimposing portion superimposing the first voltage and the second voltage, the voltage superimposed at the voltage superimposing portion being applied to the coil so that the movable plate rotates about the X axis with a frequency of the first voltage and about the Y axis with a frequency of the second voltage.