Ren Hongwen, Xianyu Haiqing, Xu Su, Wu Shin-Tson
College of Optics and Photonics, University of Central Florida, Orlando, Florida 32816, USA.
Opt Express. 2008 Sep 15;16(19):14954-60. doi: 10.1364/oe.16.014954.
A tunable-focus liquid lens using dielectrophoretic effect is demonstrated. When a voltage is applied to a dielectric liquid droplet, the generated electric field inside the droplet is inhomogeneous. As a result, the liquid bears a dielectric force and its surface profile can be reshaped which causes the focal length to change. Adaptive lenses with different apertures are fabricated and their performances evaluated. In comparison to the patterned-electrode liquid lenses, our lens uses continuous electrode which is much simpler for fabrication.
展示了一种利用介电泳效应的可调焦液体透镜。当向介电液滴施加电压时，液滴内部产生的电场是不均匀的。结果，液体承受介电力，其表面轮廓可以重塑，从而导致焦距改变。制造了具有不同孔径的自适应透镜并评估了它们的性能。与图案化电极液体透镜相比，我们的透镜使用连续电极，制造起来要简单得多。
