Patent ID: 7446911
Filing Date: 2008-11-04
Classification: G02B

Abstract:
1. An optical scanning apparatus for optical scan that oscillates at least partially an oscillating body having a reflective mirror portion, to thereby modulate a direction in which the reflective mirror portion causes incident light thereon to be reflected off, the oscillating body comprising: a first spring portion, coupled to the reflective mirror portion, and excited to generate a torsional oscillation of the first spring portion; and a plurality of second spring portions, coupled to the first spring portion, and coupled to a fixed frame portion of the oscillating body in a bifurcation manner with a bifurcation spacing of the plurality of second spring portions being larger than a width of the first spring portion, the plurality of second spring portions being excited to generate flexural and torsional oscillations thereof, the optical scanning apparatus further comprising an actuator oscillating the plurality of second spring portions.