Patent ID: 7876002

Claim:
An actuator comprising: a control object provided at a movable section side; a supporting shaft supporting the control object; a supporting mechanism provided at a fixed section side, the supporting mechanism swingably supporting the supporting shaft; and a driving mechanism swinging the supporting shaft from a neutral position to a position where the supporting shaft is titled, wherein the supporting mechanism includes an outer base, an inner ring member, and a plurality of small balls, the outer base having an opening and provided at the fixed section side, the inner ring member provided in the opening of the outer base, the plurality of small balls disposed between an inner side of the opening and an outer side of the inner ring member, the supporting shaft being held by the inner ring member, and wherein the driving mechanism includes a magnet, a pair of yokes, and a plurality of driving coils, the magnet provided at either one of the fixed section and the movable section, the yokes disposed at respective poles of the magnet so that the yokes oppose each other, the plurality of driving coils disposed at the other of the fixed section and the movable section, a plurality of arms extending sideways from one of the yokes and movably disposed in the driving coils.