Patent ID: 11953813
Assignee: STMICROELECTRONICS S.R.L.
Field: Optics (Instruments)
Classification: CPC B  G | IPC B  G

Claim 14:
15. The microelectromechanical device according to claim 1, wherein:
the tiltable structure is configured to perform rotation movements about both the first rotation axis and a second rotation axis, parallel to a second horizontal axis of the horizontal plane, orthogonal to the first horizontal axis;
the tiltable structure includes an inner frame defining a window and elastically coupled to the driving arms by the decoupling elastic elements allowing rotation about the first rotation axis, and a supporting element housed in the window and elastically coupled to the inner frame by elastic elements, which are compliant in regard to torsion about the second rotation axis, so as to be driven in rotation about the second rotation axis; and
the piezoelectrically driven actuation structure comprises additional regions of piezoelectric material carried by the driving arms and configured to cause rotation of the supporting element about the second rotation axis, independently and decoupled from the inner frame.