Patent ID: 6924914

Claim:
A light deflector in which both ends of a movable plate is supported to a support substrate by an elastic support portion, a reflection surface is formed on one surface of the movable plate, and the movable plate is torsion-oscillated about a torsion axis of the elastic support portion as a center to deflect an incident light that enters the reflection surface, wherein a recessed portion is formed on at least one side surface of both sides, which is a surface on which the reflection surface is not formed, and between which the torsion axis of the elastic support portion is interposed; wherein there is provided a driving means for relatively driving the movable plate with respect to the support substrate; and wherein the driving means is an electromagnetic actuator including a fixed core, a coil that is wound around the fixed core and a movable core fixed on one of surfaces between which the torsion axis center of the elastic support portion of the movable plate is interposed.