Light deflector, method of manufacturing light deflector, and image display device

A light deflector comprising:

• a movable plate provided with a light reflecting section having light reflectivity;
• a support section;
• a coupling section adapted to couple the movable plate rotatably to the support section;
• and
• a light absorbing section having a light absorbing property,
• wherein the coupling section has a pair of tilted surfaces, which have a distance from each other gradually increasing along a direction from a first surface side of the movable plate toward a second surface side of the movable plate in a cross-sectional view perpendicular to a central axis of rotation of the movable plate, and are tilted with respect to a normal line of a plate surface of the movable plate corresponding to increase in the distance, and
• the light absorbing section is disposed on the tilted surfaces of the coupling section.

A method of manufacturing a light deflector, comprising:

• (a) forming
• a movable plate having an upper surface, a lower surface, and at least one side surfaces,
• an elastic support section having an upper surface, a lower surface, and at least one side surfaces, having a first end coupled to the movable plate, and adapted to support the movable plate rotatably around a predetermined axis, and
• a support member coupled to a second end of the elastic support section;
• (b) forming a light absorbing section on the upper surface and the at least one side surfaces of the elastic support section;
• and
• (c) forming a reflecting section on the upper surface of the movable plate,
• wherein in step (a), each of the side surfaces of the elastic support section is formed of one or more tilted surfaces existing outside either one of the upper surface and the lower surface of the elastic support section.