Abstract: An elastomer piezoelectric element is configured by alternately disposing first opposite electrodes and second opposite electrodes, and sandwiching a dielectric layer between each first opposite electrode and the corresponding second opposite electrode. Each of the dielectric layers includes a dielectric elastomer sheet-shaped dielectric portion and a conductive elastomer first common electrode connecting the first opposite electrodes to each other or a conductive elastomer second common electrode connecting the second opposite electrodes to each other. The first common electrode and the second common electrode are provided so as to extend from one main surface to another main surface of the dielectric portion, and are joined to the first opposite electrode and the second opposite electrode, respectively, on a joint surface along the dielectric layer.

Abstract: An elastomer piezoelectric element includes a plurality of unit layers disposed along a thickness direction of the elastomer piezoelectric element. Each of the unit layers includes a sheet-shaped dielectric elastomer dielectric portion, a conductive elastomer electrode partially disposed on a first surface of the dielectric portion, and an insulating elastomer insulated portion that is provided in at least a portion of an area surrounding the electrode and brings a thickness of the unit layer in a portion in which the electrode is not disposed close to a thickness of the unit layer in a portion in which the electrode is disposed.