Flexible stacked type actuators

Flexible stacked type actuators have been developed. The typical flexible stacked type actuator is composed of 20 sheets of PZT unimorph cells. These cells are piled vis-a-vis, and these cells are connected with a flexible rod at the edge of each cell. The electrodes are connected to one another with copper wire 50 μm in diameter. The actuator is 12 mm in diameter and 6 mm in length. The bending angle is 8 degrees with no weight and 4.5 degrees with 100 g weight when electrodes on a cell are charged with 250 V driving voltage. The laser scanning system that contains two flexible stacked type actuators and a mirror at the top of the actuator is manufactured. The laser scanning system can draw simple diagrams