Patent ID: 8128246

Claim:
An apparatus for tilting a mirror comprising: a mirror for reflecting light from an object; a plate for supporting the mirror; and a diaphragm sandwiched between the mirror and the plate, the diaphragm including a planar substrate having a center and a circumferential edge surrounding the center, and the diaphragm including cutout portions forming a pattern in the diaphragm, wherein the plate provides tilt motion to the mirror, and the pattern in the diaphragm stabilizes the tilt motion of the mirror, and the pattern includes a plurality of first cutout portions, each of the first cutout portions defined by at least two first legs originating from a common location proximate to the center and extending toward the circumferential edge, and a plurality of second cutout portions, each of the second cutout portions defined by at least two second legs originating from a common location proximate to the circumferential edge and extending toward the center.