在原有圆孔型液晶透镜和模式液晶透镜(MLCL)理论的基础上, 将MLCL的等效电路模型和液晶的连续弹性体理论相结合, 提出了一种简洁的MLCL的理论仿真方法。利用已有的实验工艺制备出了通光孔径为4 mm, 盒厚为50 μm, 方阻为2 MΩ/sq的MLCL。此透镜的成像特性和焦距都可以通过调节施加在透镜上的电压的幅值和频率来调控。搭建实验平台, 来实际测量、观测不同电压值和频率下透镜的焦距和成像效果, 并对之进行详细的分析。

A simplified theoretical simulation method of modal liquid crystal lens (MLCL) was proposed based on the equivalent circuit model of MLCL and the continuous elastomeric theory of liquid crystal. It was prepared for the MLCL with the aperture of 4mm, the cell gap of 50um and the sheet resistance of 2MΩ/sq. The optical imaging properties and focal length of the MLCL can be controlled by the amplitude and frequency of the voltage that was applied on the MLCL. An experimental platform was set to measure the focal length and could research the image quality under different amplitudes and frequencies, and then give a detailed analysis of the condition.