Patent ID: 8305669
Filing Date: 2012-11-06
Classification: G02B

Abstract:
1. An optical scanning device, comprising: a substrate; a supporting component fixing the substrate, the supporting component being fixed to a fixed end portion, the fixed end portion being provided at one end side of the substrate; a drive source provided on the substrate, the drive source causing the substrate to oscillate and generating a substrate vibration; a pair of cantilever beams which protrude from connecting positions of both-side portions of one side of the substrate; a torsion bar provided so as to bridge the connecting positions provided at the cantilever beams; a mirror portion whose both-sides are supported by the torsion bar between the cantilever beams, the mirror portion being provided at the other end side of the substrate; and a light source projecting light onto the mirror portion, wherein the connecting positions between the substrate and the cantilever beams are located in the vicinity of the maximum amplitude of the drive source, and the connecting positions between the cantilever beams and the torsion bar are located in the vicinity of the minimum amplitude of the drive source.