DEVICE AND METHOD FOR STEERING A BEAM OF LIGHT

摘要

A beam steering device (10) uses a liquid crystal (24) with an array of back electrodes (20). Voltages are applied to the array to cause a desired phase distribution across the array, the distribution being selected to steer a beam incident upon the array into a desired direction. Reflective elements (22) are disposed to reflect light incident in the spaces between the electrodes (20) to reduce losses and to smooth the transitions in phase between adjacent electrodes.