Aberrations of Liquid Crystal Lens Driven by Low Voltages

Abstract

On the hole-patterned ITO electrode on the upper substrate a SiO_{2 isolation film of approximately 1 micron thickness is grown, on which a high resistance ZnO film is coated. An LC film is sandwiched by the upper substrate and the lower ITO glass substrate, and an LC lens with driving voltages of only several volts is realized. The measurements of the optical aberrations of the LC lens show that in the focus range of approximately 5 m^-1, the amounts of the primary aberrations are within the ranges that can be tolerated in an image-forming system.}