Patent ID: 8928205
Filing Date: 2015-01-06
Classification: H01L,H02N

Abstract:
1. Actuator in the form of a single-layer or multi-layer flat plate, comprising: an upper face; a lower face; at least one layer having two electrodes spaced from each other by a linear separating area and arranged opposite each other both on its upper face and on its lower face, said electrodes of said upper face are arranged at an offset from said electrodes of said lower face; wherein said actuator comprises at least one friction element, said friction element being arranged along said separating area; wherein the electrodes of said upper face are configured to oscillate deformations of said actuator along a first axial direction for driving a movable element in contact with said actuator in said first axial direction and said electrodes of said lower face are configured to oscillate deformations of said actuator along a second axial direction for driving the movable element in contact with said actuator in said second axial direction, when the electrodes of said upper face and the electrodes of said lower face are electrically actuated respectively.