Patent ID: 7476950

Claim:
A micro-oscillating element comprising: a frame; a movable functional portion; a torsional joint for jointing the frame and the movable functional portion with each other and for providing the movable functional portion with an axis for oscillating motion; and a first comb-tooth electrode and a second comb-tooth electrode for generation of a driving force for the oscillating motion; wherein the first comb-tooth electrode includes a plurality of first electrode teeth each having a laminate structure of a first conductor, an insulator and a second conductor laminated in a direction of the oscillating motion, the first conductor and the second conductor being electrically connected with each other, wherein the second comb-tooth electrode includes a plurality of second electrode teeth that are caused not to face the second conductor but to face the first conductor of the first electrode teeth during non-operation, wherein the second electrode teeth are longer than the first conductor in the direction of the oscillating motion.