Affiliation:
1. Hefei University of Technology
Abstract
A liquid crystal microlens array (LCMLA) with positive and negative focal lengths based
on a ring-array patterned electrodes is demonstrated. By carefully
designing patterned electrodes with a circular electrode array area
and outer ring electrode region area, the switching of the positive
and negative lens effect can be easily achieved in a single cell. A
positive lens effect appeared when the voltage was applied to the
outer ring electrode region and the top substrate. The focal length
changed from infinity to 1 mm as the voltage varied from 0 to
3
V
r
m
s
. A negative lens effect occurred when
the voltage was applied to the circular electrode array and the top
substrate. The focal length varied from infinity to
−
1
m
m
when the voltage changed from 0 to
2
V
r
m
s
. The imaging properties of the LCMLA
at different voltages are evaluated. Our LCMLA, with simple structure,
low driving voltage, and good stability, has potential applications in
optical communication, imaging processing, and displays.
Funder
National Natural Science Foundation of China
China Postdoctoral Science Foundation
Subject
Atomic and Molecular Physics, and Optics,Engineering (miscellaneous),Electrical and Electronic Engineering
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献