Provided is a vibrating mirror element including: a mirror part; a substrate made of metal, including a pair of beams, a support supporting each of the pair of beams, and a torsion part swingably supporting the mirror part; a driving source generating a plate wave that swings the mirror part; and a vibration suppression part suppressing vibration transmitted to the pair of beams. The vibration suppression part is configured to suppress the vibration transmitted to the pair of beams by abutting against the pair of beams at a position between a second mirror end among ends of the mirror part that is opposite a first mirror end near the support and the torsion part in a first direction in which the pair of beams extends.

A micromechanical component having a mount, an adjustable element, which is connected via at least one spring to the mount, and an actuator device, a first oscillatory motion of the adjustable element about a first axis of rotation and simultaneously a second oscillatory motion of the adjustable element, which is set into the first oscillatory motion, being excitable about a second axis of rotation in response to the actuator device; and the adjustable element being configured by the at least one spring to be adjustable on the mount in such a way that the adjustable element is adjustable by a resulting angular momentum about a rotational axis, which is oriented orthogonally to the first axis of rotation and orthogonally to second axis of rotation. Also, a method for manufacturing a micromechanical component. Moreover, a method for exciting a motion of an adjustable element about a rotational axis.

A hinge between a first part and a second part of a microelectromechanical system including a first element and a second element free to move relative to each other in an out-of-plane direction is disclosed. The hinge includes a first rigid part; a second part fixed to a first face of the first part by one end and anchored to the second element by a second end, the second part deforming in bending in the out-of-plane direction; and a third part fired to a first face of the first part by a second end, and anchored to the first element by a second end, the third part deforming in bending in the out-of-plane direction. In an undeformed state, the second part and the third part each includes one face located in the same plane orthogonal to the out-of-plane direction.

Embodiments of the disclosure provide a micromachined mirror assembly for controlling optical directions in an optical sensing system. The micromachined mirror assembly may include a micro mirror configured to direct an optical signal into a plurality of directions. The micromachined mirror assembly may also include at least one actuator coupled to the micro mirror and configured to drive the micro mirror to tilt around an axis. The micromachined mirror assembly may further include one or more objects attached to the micro mirror. The one or more objects may be asymmetrically disposed with respect to the axis to create an imbalanced state of the micro mirror when the micro mirror is not driven by the at least one actuator.

Microelectromechanical sensor with an out-of-plane detection has a cross sensitivity in a first direction in the plane with a value of S.sub.T, the sensor comprising a support, a mass suspended from the support by beams stressed by bending, in such a way that the inertial mass is capable of moving with respect to the support about an axis of rotation contained in a plane of the sensor, a stress gauge suspended between the mass and the support. The bending beams have a dimension t.sub.f in the out-of-plane direction and the mass has a dimension t.sub.M in the out-of-plane direction such that $t_f=\frac{3}{4}\left(t_M-2l_{\mathrm{arm}}{S}_T\right).$
L.sub.arm is the distance between the centre of gravity of the mass and the centre of the bending beams projected onto the first direction.

A micro-sized optical device may comprise a mirror suspended on a set of hinges that are mounted to the substrate and that are configured to tilt the mirror about an axis, wherein a hinge of the set of hinges is a two-layer structure with a pivot point that aligns with a mass center of the mirror; and a three-layer comb actuator structure associated with the hinge of the set of hinges, wherein the three-layer comb actuator structure includes a rotor comb actuator, a first stator comb actuator, and a second stator comb actuator.

A motor having a circuit board including at least two MEMS sensors. The circuit board is mounted within a housing of the motor using the same fasteners as an encoder of the motor. Mounting the MEMS sensors to the circuit board simplifies assembly of the motor and standardizes the positioning of the MEMS sensors within the housing, while the overall motor footprint is unaffected.

Hinge between a first part and a second part of a microelectromechanical system, said system comprising a first element (S) and a second element (M) free to move relative to each other in an out-of-plane direction, said hinge comprising a first rigid part (4), a second part (6) fixed to a first face of the first part (4) by one end and anchored to the second element by a second end, said second part (6) deforming in bending in the out--of-plane direction, a third part (8) fired to a first face of the first part (4) by a second end, and anchored to the first element (S) by a second end, the third part (8) deforming in bending in the out-of-plane direction (Z), and, in an undeformed state the second part (6) and the third part (8) each comprising one face located in the same plane (P2) orthogonal to the out-of-plane direction (Z).

A microelectromechanical device includes a fixed structure defining a cavity with a tiltable structure that is elastically suspended in the cavity. A piezoelectrically driven actuation structure, interposed between the tiltable structure and the fixed structure, is biased for causing rotation of the tiltable structure about a first rotation axis belonging to a horizontal plane in which the tiltable structure rests. The actuation structure includes a pair of driving arms carry respective regions of piezoelectric material and are elastically coupled to the tiltable structure on opposite sides of the first rotation axis through respective elastic decoupling elements. The elastic decoupling elements exhibit stiffness in regard to movements out of the horizontal plane and compliance to torsion about the first rotation axis.

A MEMS anti-phase vibratory gyroscope includes two measurement masses with a top cap and a bottom cap each coupled with a respective measurement mass. The measurement masses are oppositely coupled with each other in the vertical direction. Each measurement mass includes an outer frame, an inner frame located within the outer frame, and a mass located within the inner frame. The two measurement masses are coupled with each other through the outer frame. The inner frame is coupled with the outer frame by a plurality of first elastic beams. The mass is coupled with the inner frame by a plurality of second elastic beams. A comb coupling structure is provided along opposite sides of the outer frame and the inner frame. The two masses vibrate toward the opposite direction, and the comb coupling structure measures the angular velocity of rotation.