A six-degree-of-freedom large-stroke uncoupling large hollow series-parallel piezoelectric micro-motion platform includes a base, a movable platform top, a second platform and a first platform, wherein a first guide unit, a second guide unit, a third guide unit, a fourth guide unit, a fifth guide unit and a sixth guide unit are respectively connected in sequence to the second platform and the first platform; the first guide unit is internally provided with a first drive unit, the second guide unit is internally provided with a second drive unit, and the third guide unit is internally provided with a third drive unit; and the base is provided with a fourth drive unit, a fifth drive unit, a sixth drive unit and a seventh drive unit, the fifth drive unit is provided below the second drive unit, and the sixth drive unit is provided below the third drive unit.

The operating unit comprises an operating element which is adapted to be mechanically excited by means of a piezo driver. The piezo driver comprises a piezo actuator made from a piezoelectric material. The longitudinal extension ends of the piezo actuator have mechanically coupled thereto a conversion gear for converting a length change of the piezo actuator occurring in the effective direction of the piezo actuator into a movement of an element, which is coupled to the conversion gear and to be moved, at an angle not equal to 0 degree relative to the longitudinal extension of the piezo actuator. The conversion gear comprises a first bracket which is of an elastic configuration and/or comprises an elastic material and which, in the area of the longitudinal extension ends of the piezo actuator, is mechanically coupled to the latter. The first bracket is provided with a first and a second end portion, where the first bracket is respectively mechanically coupled to the piezo actuator, and between the two end portions, is provided with an oblique first inclined portion and an oblique second inclined portion which is shorter as compared to the first inclined portion. These portions of the bracket extend like the sides of a triangle with an imaginary connecting line extending between the end portions of the bracket as a basis and are elastically connected to each other.

The invention relates to an adjustment device (1), comprising at least two linear stages (2, 3), which are arranged next to each other and which are fixedly connected to each other (6) by means of one of the adjustment sections (5) of each of the linear stages such that an adjustment movement of one linear stage can be transferred to the adjacent linear stage, wherein one linear stage is designed to bring about an increase in the distance between the adjustment sections arranged on said linear stage as a result of actuation of the adjustment element and an adjacent linear stage is designed to bring about a decrease in the distance between the adjustment sections arranged on said linear stage as a result of actuation of the adjustment element so that a displacement of the adjustment device can be realized, which displacement corresponds to the sum of the amounts of the changes in the distance between the adjustment sections of the linear stages.

The piezo drive is provided with a piezo actuator which can be reversibly expanded with respect to its longitudinal extent and has two ends which are averted from one another and also has two lateral sides which are averted from one another. A conversion transmission is coupled to the piezo actuator for converting an expansion and a subsequent contraction of the piezo actuator into in each case a movement which is directed at an angle which is not equal to 0 degrees, in particular of 90° in relation to the longitudinal extent of the piezo actuator. The conversion transmission has an elastic clip which has two receiving legs, which are situated opposite one another and are at a distance from another, and a connecting which extends between said receiving legs and has at least one section which is directed away from the piezo actuator with respect to the position of said piezo actuator or a section which is bent in the direction of said piezo actuator. The piezo actuator is, at its two ends, received by the receiving legs so as to bear against them and the connection leg of the clip is arranged to the side of one of the two lateral sides of the piezo actuator.

In an embodiment a device includes at least one piezoelectric actuator including a plurality of piezoelectric layers and a first reinforcing element and a second reinforcing element, wherein the piezoelectric actuator is arranged between the reinforcing elements, wherein the piezoelectric actuator is configured to alter its expansion in a first direction when an electrical voltage is applied, and wherein the reinforcing elements are configured to deform on account of a change in an expansion of the piezoelectric actuator such that a central region of the respective reinforcing element is moved relative to the piezoelectric actuator in a second direction, the second direction being perpendicular to the first direction.

Provided is a linear structure for displacement transmission that can be bent in a second direction or a third direction when force in the second direction or the third direction is applied and can transmit a displacement in a first direction from an end of one side to an end of the other side when force in the first direction is applied. The linear structure includes a displacement transmission plate and a plurality of displacement transmission rods disposed radially on the displacement transmission plate to transmit the displacement in the first direction from the end of one side to the end of the other side.

A pen-shaped input and/or output device and a method for generating a haptic signal are disclosed. In an embodiment a device includes an actuator unit that has a piezoelectric actuator, wherein the device is a pen-shaped input and/or output device.

An inertial piezoelectric actuator driven by symmetrical sawtooth wave is symmetrical in structure and includes a seat, a slider, a piezoelectric stack and an elliptical ring. A pair of leaf-shaped flexible beams are arranged at a front end of a base, and a guide rail is connected between the pair of leaf-shaped flexible beams. The slider is placed on the guide rail. The piezoelectric stack is arranged in the elliptical ring with an interference fit. A front end of the elliptical ring is in contact with the guide rail, and a pre-stressed contact force between the elliptical ring and the guide rail is controlled by adjusting a screw at a rear end of the elliptical ring. A method for method for actuating bi-directional motion of the inertial piezoelectric actuator is further provided.

An optical element driving mechanism is provided that includes a fixed assembly, a movable assembly, a driving assembly, and a circuit assembly. The movable assembly is configured to be connected to an optical element, and the movable assembly is movable relative to the fixed assembly. The driving assembly is configured to drive the movable member to move relative to the fixed assembly. The circuit assembly is electrically connected to the driving assembly, and the circuit assembly includes an electrical connection element having a resin material.

The invention relates to an actuator device comprising at least one solid-state actuator and a hydraulic unit connected mechanically to the solid-state actuator in series, wherein said hydraulic unit comprises a hydraulic volume which is filled with a hydraulic fluid. In the method of clamping a clamping body, an actuator device of this type is used and the solid-state actuator of the actuator device is controlled, in particular, depending on a movement variable of the clamping body.