Patent ID: 7777935

Claim:
An actuator, comprising: an operating part; a contacting part that is in contact with the operating part, said contacting part being formed by overlapping a first pattern on an end of a second pattern, and said first pattern having a solid structure; a substrate; a plurality of regulation members that are arranged at corners of the substrate, respectively, each of said regulation members having a stopper at a top thereof; a supporting member that has a top part, and is arranged on the surface of the substrate; a plate member that acts as the operating part, and does not have a fixed end, said plate member including a light reflecting area, a conductive layer formed of a member having a conductive portion, said plate member being movably arranged in a space among the substrate, the supporting member, and the stoppers of the regulation members; and a plurality of electrodes that are arranged on the substrate, and nearly opposite to the conductive layer of the plate member, wherein: the contacting part is formed by overlapping two or more layers, the contacting part corresponds to an overlapping portion of an end of a pattern of one of the two or more layers and an end of a pattern of another one of the two or more layers, and the plate member is inclined by an electrostatic attractive force with the supporting member as a center to deflect light incident onto the light reflecting area.