Patent ID: 7372620
Filing Date: 2008-05-13
Classification: B81B,G02B

Abstract:
1. A micromirror, comprising: a holding unit; a mirror that is held by the holding unit to be pivotable about a rotation axis of the mirror; a first fixed electrode group including a plurality of electrodes fixed to the holding unit; a second fixed electrode group including a plurality of electrodes fixed to the holding unit; a first movable electrode group including a plurality of electrodes fixed to the mirror and located adjacently to the first fixed electrode group; and a second movable electrode group including a plurality of electrodes fixed to the mirror and located adjacently to the second fixed electrode group; wherein the first and second fixed electrode groups are arranged oppositely to each other with respect to the rotation axis of the mirror, wherein the plurality of electrodes of the first movable electrode group includes at least one electrode located at a position upper than that of neighboring one of the plurality of electrodes of the first fixed electrode group, and includes at least one electrode located at a position lower than that of neighboring one of the plurality of electrodes of the first fixed electrode group, wherein the plurality of electrodes of the second movable electrode group includes at least one electrode located at a position upper than that of neighboring one of the plurality of electrodes of the second fixed electrode group, and includes at least one electrode located at a position lower than that of neighboring one of the plurality of electrodes of the second fixed electrode group.