Liquid crystal lens array for 3D endoscope application

Abstract

A plano-convex electrode is presented for a liquid crystal lens array with a hexagonal arrangement, small inactive region, 30μm cell gap and low applying voltage. It uses circular curved electrodes to provide a smooth, controllable applied potential profile across the aperture to manage the phase profile.

Liquid crystal lens array for a 3D endoscope

“…We have developed a small lens based on an LC lens array with a hexagonal arrangement, small inactive region, and low applied voltage. 16 It shares the image with seven lenses instead of nine lenses in a commonly used arrangement of 3 3 lenses and produces better image quality. Unlike some previous methods, 17,18 we do not use the patterned electrode as the lens.…”