Liquid crystal lens with focal length variable from negative to positive values

被引：94

作者：

Wang, B ^{[1
]}

Ye, MO ^{[1
]}

Sato, S ^{[1
]}

机构：

[1] Akita Univ, Dept Elect & Elect Engn, Akita 0108502, Japan

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2006年 / 18卷 / 1-4期

基金：

日本科学技术振兴机构;

关键词：

lens power; liquid crystal (LC) lens; negative lens; positive lens;

D O I：

10.1109/LPT.2005.860397

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A liquid crystal (LC) lens with focal length variable from negative to positive is reported. There are three electrodes in the LC cell. One electrode has a circular hole in the center. The lens is driven by two voltages that produce a spatially nonuniform and symmetrical electric field in the LC layer. By adjusting the voltages, a wide range of lens power is covered. The LC lens preserves its optical quality over the entire focus range.

引用

页码：79 / 81

页数：3

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