Patent ID: 6758571
Filing Date: 2004-07-06
Classification: G02B

Abstract:
A movable mirror device, comprising:a sheet having a frame portion, a hinge portion, and a mirror portion formed therein, the hinge portion having a pivot axis, the mirror portion being coupled to the frame portion via the hinge portion so that the mirror portion can pivot about the pivot axis relative to the frame portion, wherein the hinge portion is twisted when the mirror portion pivots about the pivot axis and the twisted hinge portion biases the mirror portion toward a neutral relaxed position where the mirror portion is substantially aligned with a plane of the frame portion, and the mirror portion having a first side and a second side, and the frame portion at least partially bordering the mirror portion; a magnetic flux channeling circuit comprising a first circuit portion, a second circuit portion, a third circuit portion, and a fourth circuit portion, the first circuit portion being attached to the first side of the mirror portion, and the first circuit portion being separated from the remainder of the magnetic circuit portions when the mirror portion is in the neutral position, the second circuit portion extending on the first side of the mirror portion, wherein an end of the second circuit portion is separated from the first circuit portion by a first spaced distance when the mirror portion is in the neutral position, and the third circuit portion extending on the second side of the mirror portion, wherein an end of the third circuit portion is separated from the second side of the mirror portion by a second spaced distance when the mirror portion is in the neutral position; anda wire of electrically conducting material coiled about the fourth circuit portion such that a magnetic field is induced within the fourth circuit portion and through the magnetic flux channeling circuit when electrical current flows through the wire.