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Liquid lens based on electrowetting: a new adaptive component for imaging applications in consumer electronics

机译:基于电润湿的液体透镜:用于消费电子产品成像应用的新型自适应组件

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摘要

A new technology for focus variation with direct electric control without moving part will be presented. The technology relies on an interface between two non-miscible transparent liquids, which can be deformed by electrowetting. This technology has been developed since 10 years in the lab and starts to be available commercially, with the following characteristics: large amplitude of dioptric correction (20 dioptries for a 5mm pupil size), fast response, small power consumption and good transmission in the visible range, clear pupil l-10mm diameter. This paper will show the basic principle, as well as the physical limitations and optical aberrations due to differential thermal expansion of the two liquids in the cell. Experimental measurements made with a Schack Hartmann wave front analyzer will be presented, as well as numerical simulations of the liquid-liquid interface. Applications will be discussed, mainly in consumer electronics.
机译:将提出一种无需移动部件即可直接进行电控制的焦点变化新技术。该技术依赖于两种不可混溶的透明液体之间的界面,可以通过电润湿使其变形。该技术已经在实验室中开发了10年,并开始在商业上可用,它具有以下特征:屈光矫正幅度大(对于20mm屈光度为5mm瞳孔大小),响应速度快,功耗小,可见光透射率高范围,清晰的瞳孔直径为l-10mm。本文将介绍基本原理,以及由于两种液体在电池中的热膨胀差异引起的物理局限性和光学像差。将介绍使用Schack Hartmann波前分析仪进行的实验测量以及液-液界面的数值模拟。将讨论应用程序,主要是在消费电子产品中。

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