A laser display using a PZT-actuated 2D optical scanner

Abstract

We report an image projection display using a MEMS 2D optical scanner driven by the PZT unimorph actuators developed by the ADRIP method. Improved contrast ratio of optical scan speeds with relatively large angles (horizontal: optical 27 degrees at 16.4 kHz, vertical: optical 31 degrees at 77.4 Hz, frequency ratio of 210) has made it possible to project monotone bitmap animations