Liquid crystal optical device and apparatus comprising the same

Abstract

An optical device comprising: at least one liquid crystal cell comprising liquid crystal material in a cell gap having a dimension at least partly defined by spacers, the liquid crystal cell comprising electrodes for inducing substantially confocal refractive index patterns in substantially concentric, first regions of the liquid crystal material; and within an area bound by an outer edge of an outermost one of the first regions, the spacers being at least disproportionately located in one or more re-set regions between the first regions.

Dependencies are inferred from the claim text.