LIGHT DEFLECTING UNIT Russian patent published in 1996 - IPC

FIELD: optical instrument engineering. SUBSTANCE: device has case; two piezoelectric elements are fixed inside the case in cantilever in a space relation. Piezoelectric elements are made in form of resilient metal substrate connected mechanically with piezoelectric plates. Control electrodes are applied onto the other sides of the plates, which have to be the reflecting surfaces simultaneously. Piezoelectric elements are fixed inside the case at 0-10 deg angle one relatively others and with their reflecting surfaces turned to each other. Optical axis of light source builds 80-90 deg angle with the first piezoelectric element. Hole is made at the second piezoelectric element; diameter of the hole equals to 1,1-1,3 diameter of scanning beam. EFFECT: improved efficiency of controlling optical beam in space. 4 dwg