Patent ID: 6972884

Claim:
A mirror device driving method for driving a mirror device including a mirror substrate having a mirror which is driven by a predetermined distance-dependent driving force and a support substrate which supports the mirror substrate, the method comprising; acting the distance-dependent driving force between at least part of the mirror substrate and at least part of the support substrate; forming the mirror substrate and the support substrate so that a gap between a part of the mirror substrate positioned away from the mirror and a part of the support substrate positioned opposite to the part of the mirror substrate positioned away from the mirror is narrower than a gap between the mirror and a part of the support substrate positioned opposite to the mirror; gradually narrowing gaps between parts of the mirror substrate and parts of the support substrate positioned opposite to the parts of the mirror substrate so that the gap between the mirror and the part of the support substrate positioned opposite to the mirror becomes narrower, by generating the distance-dependent driving force towards the mirror from the part of the mirror substrate positioned away from the mirror and the part of the support substrate positioned opposite to the part of the mirror substrate positioned away from the mirror; and driving the mirror by generating the distance-dependent driving force between the mirror and the part of the support substrate positioned opposite to the mirror in a state that the gap between the mirror and the part of the support substrate positioned opposite to the mirror has been narrowed.