ACOUSTO-OPTIC DEFLECTION

摘要

Apparatus for acoustically deflecting optical radiation to form a directed optical beam including a deflector means for receiving optical radiation and deflecting the optical radiation with acoustic wave(s) wherein the deflector means is arranged to modulate the acoustic wave(s) such that acoustic waves of differing frequency simultaneously deflect received optical radiation by differing respective amounts thereby to form a directed optical beam, and to control the distribution of light intensity across the directed optical beam by controlling said modulation. A corresponding method is also disclosed.