可调液晶微透镜是一种基于电光效应来改变其折射率空间分布的新型变焦微透镜，在微光学系统和微光机电系统中具有广阔的应用前景。简要介绍了可调液晶微透镜的基本结构，分析了其焦距调控的工作原理。阐述了可调液晶微透镜的研究现状，并指出了可调液晶微透镜研究的发展趋势。

The tunable liquid crystal microlens is a novel optical component by tuning its refractive index based on electro-optical effect, which has wide potential application in optical community. The elemental structures have been described, and the operation principles have been presented. An overview of recent activities in the area of the tunable liquid crystal microlens has been given, and then the development tendency in near future has been predicted.