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Fabrication of an electrowetting liquid microlens array for a focus tunable integral imaging system
Optics Letters ( IF 3.6 ) Pub Date : 2020-01-10 , DOI: 10.1364/ol.377865
Cheoljoong Kim , Dooseub Shin , Gyohyun Koo , Yong Hyub Won

The main advantage of an integral imaging system is that it does not cause a vergence-accommodation conflict to the viewer, as happens in other types of three-dimensional (3D) display systems. However, it still has the disadvantage of having a limited depth range. In this Letter, the fabrication of the electrowetting liquid lens array with an adjustable focal length is presented. With the liquid microlens array, we propose a focus tunable integral imaging system having an enhanced expressible depth range. The fabricated lens array has 1 mm lens pitch, 100 µm sidewall, ${20} \times 14\;{\rm mm}$ total size, $ - {542}$ to $ - {89}$ D focus variability, and 11.6 ms response time. The fabrication process, a measurement of optical characteristics, and a demonstration of the focus tunable integral imaging system are presented in this Letter.

中文翻译:

用于聚焦可调积分成像系统的电润湿液体微透镜阵列的制造

集成成像系统的主要优点是,它不会像其他类型的三维(3D)显示系统中那样,对观察者造成聚散适应冲突。但是,它仍然具有深度范围有限的缺点。在这封信中,介绍了可调节焦距的电润湿液体透镜阵列的制造。利用液体微透镜阵列,我们提出了具有增强的可表达深度范围的聚焦可调整体成像系统。制成的透镜阵列具有1 mm的透镜间距,100 µm的侧壁,$ {20} \乘以14 \; {\ rm mm} $总大小,$-{542} $$-{89} $D焦点可变性和11.6毫秒的响应时间。这封信介绍了制造过程,光学特性的测量以及聚焦可调积分成像系统的演示。
更新日期:2020-01-15
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