| 摘要 |
PROBLEM TO BE SOLVED: To obtain a laminated piezoelectric element, in which an angular displacement with respect to a linear displacement can be made large, and to obtain a piezoelectric actuator. SOLUTION: In this laminated piezoelectric element 11, an element isolating groove 11a having a width W1 is formed in the longitudinal center with reference to a piezoelectric element body which is constituted, in such a way that a plurality of thin sheet-like piezoelectric elements in which electrodes are formed are laminated. The element isolation groove 11a is a groove which is used to isolate a laminated structure body into a first piezoelectric element part 11b and a second piezoelectric element part 11c. When voltages are applied respectively to a first piezoelectric element part 11b and the second piezoelectric element part 11c, linear displacements are generated respectively. However, since the width W1 of the element isolation groove 11a is small, a large angular displacement is generated in a line segment which connects the surface of the first piezoelectric element part 11b to the surface of the second piezoelectric element part 11c. |
