Patent ID: 8547619

Claim:
A tiltable MEMS mirror device comprising: a substrate; a MEMS mirror having a top reflective surface and a profiled bottom surface, and a hinge extending from the MEMS mirror enabling the MEMS mirror to pivot about a tilt axis above the substrate, wherein the MEMS mirror has a longitudinal central axis perpendicular to the tilt axis and crossing the tilt axis at a first point, with first and second ends being disposed on the longitudinal axis at the outer free ends thereof, wherein the MEMS mirror is absent any voids or ribs therein; wherein the profiled bottom surface is such that the MEMS mirror thickness, between the top and bottom surfaces, decreases smoothly and monotonically in going from the first point towards the first and the second ends of the MEMS mirror for reducing a moment of inertia of the MEMS mirror about the tilt axis.