Lee Junsik, Lee Jooho, Won Yong Hyub
Opt Express. 2019 Dec 9;27(25):36757-36766. doi: 10.1364/OE.27.036757.
In this paper, we present a system for nonmechanical three-dimensional beam steering using an electrowetting based liquid lens and liquid prism. The optical design of the presented system was modeled with Zemax and three-dimensional beam steering was simulated by changing the ROC of the lens and the apex angle of the prism. The liquid lens from Corning-Varioptic was used and the liquid prism was fabricated and these were combined. The liquid lens and liquid prism were filled with two immiscible liquids whose densities are the same. The liquid lens provides variable focal lengths as the applied voltage is changed. The diopter range of the liquid lens is from -3.9 D to 14.5 D. Beam steering on the x-axis, y-axis, and xy-axis was achieved by applying different voltages to four sidewalls of the liquid prism. The liquid prism has a beam steering angle of up to 11.6 °, 12 °, and 11.8 ° on x-axis, y-axis, and xy-axis, respectively. By combining the electrowetting actuated liquid lens and liquid prism, three-dimensional beam steering control including the z-axis direction was demonstrated.
在本文中，我们展示了一种使用基于电润湿的液体透镜和液体棱镜进行非机械三维光束转向的系统。所展示系统的光学设计使用Zemax进行建模，并通过改变透镜的曲率半径（ROC）和棱镜的顶角来模拟三维光束转向。使用了康宁 - 变焦距液体透镜，并制作了液体棱镜，然后将它们组合在一起。液体透镜和液体棱镜填充有两种密度相同的不混溶液体。随着施加电压的改变，液体透镜提供可变焦距。液体透镜的屈光度范围为 -3.9 D至14.5 D。通过向液体棱镜的四个侧壁施加不同电压，实现了在x轴、y轴和xy轴上的光束转向。液体棱镜在x轴、y轴和xy轴上的光束转向角分别高达11.6°、12°和11.8°。通过结合电润湿驱动的液体透镜和液体棱镜，展示了包括z轴方向在内的三维光束转向控制。
