Patent ID: 7289696

Claim:
An optical switch device which has a movable member mounted with a light-reflecting member for reflecting light that is incident from a Z-direction, and emitting the light in the Z-direction from a prescribed position offset in an X-direction; a fixed-side member for movably supporting the movable member in the X-direction and a Y-direction; and drive means for driving the movable member in the X-direction and the Y-direction, the X-direction, Y-direction, and Z-direction being perpendicular to each other, comprising: a clamp mechanism provided with a pushing member for switching between a clamped state in which the movable member is pressed along the Y direction and fixed to the fixed-side member, and an unclamped state in which the pressing of the movable member along the Y direction is released; and a clamping magnetic drive circuit for driving the pushing member, said clamping magnetic drive circuit having a clamping coil disposed on a first member selected from one of the pushing member and the fixed-side member, and a clamping magnet disposed on a second member comprising the other of the pushing member and the fixed-side member for generating magnetic flux that interlinks with the clamping coil, wherein the clamping coil is wound so that it is formed with an opening facing the second member and the clamping magnet is provided with a pair of magnets that project from the second member to the first member, and wherein said pair of magnets is disposed with different poles facing each other and are made to hold the clamping coil from the inside and outside of said opening.