A new low-voltage-driven GRIN liquid crystal lens with multiple ring electrodes in unequal widths

Yung Yuan Kao*, Paul C.-P. Chao, Chieh Wen Hsueh

*Corresponding author for this work

研究成果: Article同行評審

59 引文 斯高帕斯(Scopus)

摘要

This work is dedicated to design a novel liquid crystal (LC) lens device with multiple ring electrodes in unequal widths, in order to offer tunability on focusing quality and to lower the level of applied voltage. The number and widths of the multiple ring electrodes are pre-designed and optimized to offer the on-line tunability on individual electrode voltages to render a better refraction index distribution for focusing, as compared to the past hole-type LC lenses. The resulted refractive index distribution is expected to offer similar focusing effects based on the theory of the gradient refraction index (GRIN) lens. The transparent electrodes of this new LC lens are placed at the inner surface of the LC cell to minimize the driving voltages, in results, less than 10V, for the same level of focusing power and an easy practical operation. A new fabrication process in the wafer level to bury bus lines is developed for generating smooth electrical fields over the lens aperture. In addition, a dielectric layer is coated between electrodes and the LC layer.

原文English
頁(從 - 到)18506-18518
頁數13
期刊Optics Express
18
發行號18
DOIs
出版狀態Published - 30 八月 2010

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