A piezoelectric linear motor is disclosed. Piezoelectric actuators, when energized, press stator magnets against opposing rotor magnets which impart a repulsive/attractive force onto a rotor. The rotor is constrained such that it can only move in a linear fashion, and it so moves when the force is imparted to it by the repulsive/attractive force.

A piezoelectric linear motor is disclosed. Piezoelectric actuators, when energized, press stator magnets against opposing rotor magnets which impart a repulsive/attractive force onto a rotor. The rotor is constrained such that it can only move in a linear fashion, and it so moves when the force is imparted to it by the repulsive/attractive force.

A displacement magnifying device includes a diaphragm structure including a substrate and a diaphragm provided separately from the substrate, actuators provided side by side with the diaphragm structure, and a first member including displacing sections coupled to both ends of the actuators and displaced according to displacement of the actuators. The displacing sections are coupled to the diaphragm of the diaphragm structure.

A braking device including: a piezoelectric element; and a braking portion. The braking portion is configured to be fixed to a member when the piezoelectric element is in a first state, and to be slidable along the member when the piezoelectric element is in a second state. The piezoelectric element changes from one state to another state when a voltage is applied.

A braking device including: a piezoelectric element; and a braking portion. The braking portion is configured to be fixed to a member when the piezoelectric element is in a first state, and to be slidable along the member when the piezoelectric element is in a second state. The piezoelectric element changes from one state to another state when a voltage is applied.

A vibration type actuator comprises a vibrator including an electro-mechanical energy conversion element and an elastic member; a holding member holding the vibrator; a guide member guiding the vibrator and the holding member in a first direction; a contact member in contact with the vibrator; and a pressure member pressurizing the vibrator and the contact member in a second direction intersecting the first direction, wherein the vibrator and the contact member are generate a power activating in the first direction by a vibration of the vibrator, the holding member engages with the guide member to be rotatable around as an axis, a third direction intersecting the first and the second directions, and the holding member has a recess where the vibrator is held, and an output portion transmitting the power is formed on a part of a wall surface on which the recess is formed.

A driving assembly is provided, including a transmission element and a first driving source. The transmission element has a first connecting point. The first driving source outputs a first driving force to the transmission element. The first driving source is at least partially fixedly connected to the transmission element at the first connecting point.

A micro-displacement amplifying apparatus comprises two sets of asymmetrical amplifying structures; each set of asymmetrical amplifying structure comprises a plurality of asymmetrical amplifying units connected in series by flexible hinges; the asymmetrical amplifying unit is used for amplifying a micro-displacement; the two sets of asymmetrical amplifying structures are in opposite positions and overlap with each other; the input end and output end are coupled to the asymmetrical amplifying unit by a flexible hinge, respectively; the input end is used for inputting the micro-displacement to the asymmetrical amplifying unit, and the output end is used for outputting the amplified displacement; the two contacting input ends are fixed and coupled to each other, and the two contacting output ends are fixed and coupled to each other. The present disclosure further discloses an amplification method of the micro-displacement amplifying apparatus.

Provided is a vibration wave driving apparatus comprising: a vibration actuator; and a driven member configured to be driven by the vibration actuator, wherein the vibration actuator includes: a vibrator having an electric-mechanical energy conversion element and an elastic member to which the electric-mechanical energy conversion element is fixed; a pressurizing member configured to pressurize the vibrator; a contacting member configured to pressurizing-contact with the vibrator by pressurizing the vibrator by the pressurizing member and move relative to the vibrator; an outputting member configured to output a driving force to the driven member, the driving force generated by the relative-moving of the contacting member to the vibrator, and wherein the driven member includes an output transmission member configured to hold the outputting member in a direction of the relative-moving with a predetermined spring force.

A thin film actuator having transversely oriented structural stiffeners that serve to increase actuation stroke that results from longitudinal curvature. The thin film actuator may be deployed within electromechanical devices such that an actuatable deflection of a tip of the actuator plate produces the actuation stroke. The thin film actuator may include an actuator plate affixed to a substantially rigid frame structure. The actuator plate protrudes along a longitudinal axis away from the frame structure such that the actuator plate is cantilevered from the frame structure by some distance along this longitudinal axis. The thin film actuator includes a piezoelectric film on a surface of the actuator plate. Activation of the piezoelectric film generates tensile stress or compressive stress at the surface, thereby inducing a bending moment that causes the actuator plate to undergo longitudinal curvature and some lesser degree of transverse curvature.