Resumen
A liquid crystal (LC)-based optical device that allows for the introduction of a 1D variation in the phase profile of incident light. The device is based on liquid crystal cells (500), with a set of electrode groups (201) arranged in a spiral structure designed so that all electrode groups (201) are accessible from the perimeter of the device's active area (AA). Therefore, each electrode group (201) can be addressed completely independently, even when designed in a single layer. The specific design and addressing of the electrodes (200) enable the fabrication of reconfigurable phase devices, which can be used for beam formers or beam diverters. Multiple cascaded devices allow for 2D devices. This enables devices with a large active area (AA) and high or relatively high resolution, controllable with a small number of electrodes. (Machine-translation by Google Translate, not legally binding)