Design and Analysis of a Variable-Focus Optical System Based on Electrowetting

Runling, 彭润玲 Peng; Jiabi, 陈家璧 Chen; Songlin, 庄松林 Zhuang

doi:10.3788/aos20082806.1141

Cited by 6 publications

(2 citation statements)

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“…The liquid in liquid lenses is generally sealed in a cavity which is formed by a annular shell, a supporting transparent synthetic glass and a high-restorable film. The liquid lenses can be classified to two types which one is the mechanical liquid zoom lens 4,5 and the other is the electrowetting liquid zoom lens [6][7][8][9][10][11][12] .…”

Section: Introductionmentioning

confidence: 99%

Research on one manual zoom liquid lens

Zhao

Shi

et al. 2011

SPIE Proceedings

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In liquid zoom lens, the accurate fixed-focus location needs the accurate calculation of focal length. That is to say, the accurate calculation of surface curvature must be obtained. Therefore, the research of their relation in liquid zoom lens becomes extremely important which has a directly theoretical instruction for the design of liquid zoom lenses. In our paper, the relation is studied. A manual liquid lens is reported which has upper and nether components with specificaton 5 12 × φ mm. The zoom lens is obtained by the upper component circumvolving down into the nether components.

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Section: Introductionmentioning

confidence: 99%

Research on one manual zoom liquid lens

Zhao

Shi

et al. 2011

SPIE Proceedings

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“…因此，许多不同类型的微型变焦透镜结构相继出现，如液压式微透镜 [2,3] ，基于液晶的微变焦透镜 [4] ，基于介质上电润湿的液体变焦透镜 [5] 。其中液压式微透镜是通过改变充入腔体内液体的体积来改变腔体顶面高分子聚合物聚二甲基硅氧烷 (PolydimethylsiIoxane, PDMS)薄膜的曲率，从而达到调节焦距的目的，但这种微透镜由于采用液压的方式需要一个额外的泵，与一般光电产品相容性不好，而且如果泵压力过大，会对 PDMS 薄膜造成破坏。基于液晶的微变焦透镜是利用电压改变液晶的折射率来控制液晶透镜的焦距，但是液晶透镜存在大色差、多焦点和像面难以稳定等问题。而基于介质上电润湿的双液体变焦透镜是通过外加电压改变液面曲率来实现变焦，它不同于液晶菲涅尔变焦透镜 [6] ，这种透镜无机械可动部件、结构小、寿命长、功耗低，具有重要的应用价值和巨大的市场前景，为实现无机械运动变焦提供了可能。本文所设计的基于圆锥结构的双液体变焦透镜系统与基于圆柱结构双液体变焦透镜系统 [7] 有所不同，…”

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Investigation of Variable-Focus Optical System Based on Conical Double-Liquid Lens

Fang¹,

Runling²,

Jiabi³

et al. 2010

激光与光电子学进展

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Based on the conical double-liquid variable-focus lens, by taking infinite objects as example, detailed calculations are presented to predict how the parameters for the variable-focus optical system without mechanical movements are related to meet the basic requirements of zoom lenses, i.e., changed focal length and unchanged image plane for the system, and the relational expressions are given. With the method of digital approximation, the zoom range of this optical system which meets two basic requirements is calculated out. The zoom range of this variable-focus optical system without mechanical movement is large and its focal length can be adjusted by choosing fixed lenses with different focal lengths.

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