PIEZOELECTRIC ACTUATOR AND OPTICAL SCANNING APPARATUS HAVING A PLURALITY OF PIEZOELECTRIC LAYERS

摘要

A piezoelectric actuator includes a plurality of piezoelectric layers, a plurality of electrodes between which each of the piezoelectric layers is placed so that the electrodes and the piezoelectric layers alternate with each other, and a substrate on which the plurality of piezoelectric layers and the plurality of electrodes are formed.