Patent ID: 6795225
Filing Date: 2004-09-21
Classification: G02B,Y10S

Abstract:
A micromirror unit comprising:a first frame; a mirror forming base provided with a mirror surface and spaced from the first frame to define a clearance therebetween; and a first torsion connector which includes a first end connected to the mirror forming base and a second end connected to the first frame, the torsion connector defining a first axis about which the mirror forming base is rotated relative to the first frame, the torsion connector having a width measured in a direction which is parallel to the mirror surface and perpendicular to the first axis, the first torsion connector being accommodated in said clearance between the first frame and the mirror forming base; wherein the width of the first torsion connector is relatively great at the first end and becomes gradually smaller from the first end toward the second end; and wherein the first torsion connector includes an intermediate point between the first end and the second end, the width of the first torsion connector becoming monotonically smaller from the first end to the intermediate point and monotonically greater from the intermediate point to the second end.