Patent ID: 8792151

Claim:
An optical reflection element comprising: a first frame including two portions facing each other; a first meandrous vibrating part having a first outer end and a first inner end opposite to the first outer end, the first outer end being connected with one of the two portions of the first frame in an inside of the first frame; a second meandrous vibrating part having a second outer end and a second inner end opposite to the second outer end, the second outer end being connected with another of the two portions of the first frame and the inside of the first frame; and a mirror part supported by the first inner end of the first meandrous vibrating part and the second inner end of the second meandrous vibrating part, wherein the first meandrous vibrating part has a meandrous shape that includes a plurality of first curved portions and a plurality of first vibrating beams alternately connected with the plurality of first curved portions between the first outer end and the first inner end, wherein the second meandrous vibrating part has a meandrous shape that includes a plurality of second curved portions and a plurality of second vibrating beams alternately connected with the plurality of second curved portions between the second outer end and the second inner end, wherein a curvature of a respective one of the plurality of first curved portions is smaller than a curvature of at least one of the plurality of first curved portions which is located closer to the first inner end than the respective one of the plurality of first curved portions, and wherein a curvature of a respective one of the plurality of second curved portions is smaller than a curvature of at least one of the plurality of second curved portions which is located closer to the second inner end than the respective one of the plurality of second curved portions.