Annular folded electrowetting liquid lens

被引：48

作者：

Li, Lei ^{[1
]}

Liu, Chao ^{[1
]}

Ren, Hongwen ^{[2
]}

Deng, Huan ^{[1
]}

Wang, Qiong-Hua ^{[1
]}

机构：

[1] Sichuan Univ, Sch Elect & Informat Engn, Chengdu 610065, Peoples R China

[2] Chonbuk Natl Univ, Dept Polymer Nanosci & Engn, Jeonju 561756, Chonbuk, South Korea

来源：

OPTICS LETTERS | 2015年 / 40卷 / 09期

关键词：

FOCAL LENGTH; DESIGN;

D O I：

10.1364/OL.40.001968

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report an annular folded electrowetting liquid lens. The front surface of the lens is coated with a circular reflection film, while the back surface of the lens is coated with a ring-shaped reflection film. This approach allows the lens to get optical power from the liquid-liquid interface three times so that the optical power is tripled. An analysis of the properties of the annular folded electrowetting liquid lens is presented along with the design, fabrication, and testing of a prototype. Our results show that the optical power of the proposed liquid lens can be enhanced from similar to 20.1 to similar to 50.2 m(-1) in comparison with that of the conventional liquid lens (aperture similar to 3.9 mm). It can reduce the operating voltage by similar to 10 V to reach the same diopter as a conventional liquid lens. Our liquid lens has the advantages of compact structure, light weight, and improved optical resolution. (C) 2015 Optical Society of America

引用

页码：1968 / 1971

页数：4

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