Beam steering mirror construction

摘要

A beam steering mirror is trunnion mounted about a primary axis relative to a ring structure and the ring structure is trunnion mounted on a secondary axis 90 DEG from the axis of the beam steering mirror and in the same plane and the ring structure is trunnion mounted about its secondary axis relative to a stationary support structure, and the ring structure and the beam steering mirror each have electric torque motor actuators for adjusting the beam steering mirror and the ring structure relative to the stationary support structure.