Naumov A, Love G, Loktev M Y, Vladimirov F
Opt Express. 1999 Apr 26;4(9):344-52. doi: 10.1364/oe.4.000344.
Liquid crystal modal lenses are switchable lenses with a continuous phase variation across the lens. A critical issue for such lenses is the minimization of phase aberrations. In this paper we present results of a simulation of control signals that have a range of harmonics. Experimental results using optimal sinusoidal and rectangular voltages are presented. A lack of uniqueness in the specification of the control voltage parameters is explained. The influence of a variable duty cycle of the control voltage on an adaptive lens is investigated. Finally we present experimental results showing a liquid crystal lens varying its focal length.
液晶模态透镜是一种可切换透镜，其整个透镜上具有连续的相位变化。对于此类透镜而言，一个关键问题是将相位像差最小化。在本文中，我们展示了对具有一系列谐波的控制信号进行模拟的结果。还给出了使用最优正弦电压和矩形电压的实验结果。解释了控制电压参数规范中缺乏唯一性的情况。研究了控制电压可变占空比对自适应透镜的影响。最后，我们展示了液晶透镜改变其焦距的实验结果。
