Patent ID: 7276837

Claim:
In a piezoelectric actuator including a multilayered structure of piezoelectric layers with inner electrodes ( 2 , 3 ) interspersed between them, a contacting of the inner electrodes ( 2 , 3 ) on alternating sides with outer electrodes ( 4 ) that can supply an electrical voltage, the respective outer electrode ( 4 ) being attached in a net-like, mesh-like, or screen-like fashion and contacting the respective inner electrodes ( 2 , 3 ) at least at points, the improvement wherein the contacting of the inner electrodes ( 2 , 3 ) is provided in the corner region of the piezoelectric actuator ( 1 ), and the net-like, mesh-like, or screen-like outer electrode ( 4 ) being guided around the respective corner in a predetermined region, and contacting the respective inner electrodes ( 2 , 3 ) at least in parts, wherein the net-like, mesh-like, or screen-like outer electrode ( 4 ) includes an extension ( 5 ) extending outwardly beyond the multilayered structure of piezoelectric layers and can be provided with a terminal ( 6 ) there, and wherein, in the region of the extension ( 5 ), the respective net-like, mesh-like, or screen-like outer electrode ( 4 ) is rolled and is provided with the terminal ( 6 ).