Yin Wenqi, Wang Ziyuan, Li Lei
Opt Express. 2024 Jul 29;32(16):27268-27277. doi: 10.1364/OE.528249.
In this paper, a FOV (field of view) adjustable liquid lens driven by electrowetting effect is demonstrated. The proposed lens consists of a window glass, a bottom electrode, four sidewall electrodes, two supporting shafts, and a deflectable aperture. The deflectable aperture is nested on the supporting shafts between the two liquids to limit the position of the liquid-liquid (L-L) interface. Different from the conventional FOV adjustable liquid lenses, the proposed lens can realize focal length adjustment and FOV deflection by applying voltages to the four sidewall electrodes, which has a simple structure and a miniaturized drive. The experiment shows that the aperture of the lens is 9 mm, the optical power range is -21 m to -7 m and the tilt angle of the L-L surface is ∼ 18° (± 9°). With a compact structure and easy drive, the proposed lens has great potential for applications in scanning, imaging, and inspection.
本文展示了一种由电润湿效应驱动的视场（FOV）可调液体透镜。所提出的透镜由一块窗玻璃、一个底部电极、四个侧壁电极、两个支撑轴和一个可偏转孔径组成。可偏转孔径嵌套在两种液体之间的支撑轴上，以限制液 - 液（L - L）界面的位置。与传统的FOV可调液体透镜不同，所提出的透镜可以通过向四个侧壁电极施加电压来实现焦距调节和视场偏转，其结构简单且驱动小型化。实验表明，该透镜的孔径为9毫米，光焦度范围为 - 21 m至 - 7 m，L - L表面的倾斜角度约为18°（± 9°）。所提出的透镜结构紧凑且易于驱动，在扫描、成像和检测等应用中具有巨大潜力。
