Patent ID: 9696540
Date: 2017-07-04
CPC Classifications: G02B,Y10T

Claim:
1. A micro-electro-mechanical system (MEMS) device comprising: a hinge layer including a fixed membrane having roll hinges connected to an outer platform having tilt hinges connected to an inner platform, the tilt hinges defining an axis of tilt rotation orthogonal to an axis of roll rotation defined by the roll hinges such that the inner platform is provided two degrees of rotational freedom; an electrode layer, connected beneath the hinge layer, for receiving electrical control signals, the electrode layer comprising a roll electrode for electrically biasing roll rotation of the outer platform and the inner platform and a tilt electrode for electrically biasing tilt rotation of the inner platform; a mirror layer, located above the hinge layer, comprising an outwardly extending mirror, connected to the inner platform via a pedestal, and a fixed membrane connected to the fixed membrane of the hinge layer but detached from the mirror; and an anchor,