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液体变焦镜头的研究进展

黄翔 林四英 谷丹丹 卜振翔 易伟劲 谢培钦 王凌云

黄翔, 林四英, 谷丹丹, 卜振翔, 易伟劲, 谢培钦, 王凌云. 液体变焦镜头的研究进展[J]. 中国光学, 2019, 12(6): 1179-1194. doi: 10.3788/CO.20191206.1179
引用本文: 黄翔, 林四英, 谷丹丹, 卜振翔, 易伟劲, 谢培钦, 王凌云. 液体变焦镜头的研究进展[J]. 中国光学, 2019, 12(6): 1179-1194. doi: 10.3788/CO.20191206.1179
HUANG Xiang, LIN Si-ying, GU Dan-dan, BU Zhen-xiang, YI Wei-jin, XIE Pei-qin, WANG Ling-yun. Review on progress of variable-focus liquid lens[J]. Chinese Optics, 2019, 12(6): 1179-1194. doi: 10.3788/CO.20191206.1179
Citation: HUANG Xiang, LIN Si-ying, GU Dan-dan, BU Zhen-xiang, YI Wei-jin, XIE Pei-qin, WANG Ling-yun. Review on progress of variable-focus liquid lens[J]. Chinese Optics, 2019, 12(6): 1179-1194. doi: 10.3788/CO.20191206.1179

液体变焦镜头的研究进展

doi: 10.3788/CO.20191206.1179
基金项目: 

福建省卫生教育联合攻关计划 WKJ2016-2-21

详细信息
    作者简介:

    黄翔(1995—), 男, 浙江安吉人, 硕士研究生, 2017年于厦门理工学院获得学士学位, 主要从事微光学系统和流体喷射方面的研究。E-mail:huangxiang701@163.com

    王凌云(1978—), 男, 四川通江人, 副教授, 博士生导师, 2001年、2009年于厦门大学分别获得学士、博士学位(硕博连读), 主要从事微纳传感系统、微光学系统与人工视觉、流体喷射与3D打印等方面的研究。E-mail:wangly@xmu.edu.cn

  • 中图分类号: TH74

Review on progress of variable-focus liquid lens

Funds: 

Fujian Health and Education Joint Tackling Plan WKJ2016-2-21

More Information
  • 摘要: 相比于传统的机械变焦镜头,液体变焦镜头具有体积小、响应快、成本低和集成度高等特点,被广泛应用于图像采集、目标追踪和特征识别等领域。焦距调节方式决定了液体镜头的性能和应用,本文概括了基于液晶材料、介电泳、电化学、电润湿原理的物性控制式变焦镜头和基于静电力、电磁力、压力调节和环境响应的机械驱动式变焦镜头的研究现状,介绍了液体变焦镜头在光流控芯片内的集成应用,并指出当前面临的主要问题和解决方案。最后,对液体变焦镜头的发展前景和研究方向进行了展望和总结。
  • 图  1  液体变焦镜头的分类

    Figure  1.  Classification of liquid variable-focus lenses

    图  2  不同电压下液晶分子取向示意图[42]

    Figure  2.  Liquid crystal molecular orientation model at various voltages[42]

    图  3  电化学活化液体透镜示意图[29]

    Figure  3.  Schematic of electrochemically activated liquid lens[29]

    图  4  基于介电泳力作用的液体变焦镜头结构和器件[30]

    Figure  4.  Structure and device of the variable-focus liquid lens based on dielectrophoresis force[30]

    图  5  电润湿原理及实验[45]。(a)介质上电润湿原理示意图;(b)加压前后液滴润湿性实验

    Figure  5.  Principle and experiment of electrowetting[45]. (a)Schematic diagram of electrowetting-on-dielectric. (b)Wettability test of droplet before and after applying voltage

    图  6  可调电润湿液体镜头结构与实验[34]。(a)透镜结构;(b)环形光圈模式;(c)中心光圈模式;(d)焦距与电压的关系

    Figure  6.  Structure and experiment of the switchable electrowetting liquid lens[34]. (a)Cell structure. (b)Annular aperture mode. (c)Central clear aperture mode. (d)The relations between focal length and applied voltage

    图  7  基于静电吸引的液体变焦镜头[47]。(a)透镜截面结构;(b)无电压状态;(c)加电压状态

    Figure  7.  Variable-focus liquid lens by electrostatic attraction[47]. (a)Cross-sectional structure of the lens. (b)Without an applied voltage. (c)With an applied voltage

    图  8  3种常见的电磁驱动液体镜头结构[49-51]。(a)基于电磁吸引的液体变焦镜头;(b)基于通电线圈洛伦兹力驱动的液体变焦镜头;(c)基于铁磁流体流动的液体变焦镜头

    Figure  8.  Structure of three common electromagnetically driven liquid lenses[49-51]. (a) Electromagnetic attraction varifocal liquid lens. (b) Electric coil Lorentz force driven varifocal liquid lens. (c) Ferrofluid-based fluid varifocal liquid lens

    图  9  压力调节液体镜头结构[54-56]。(a)基于液压控制的液体变焦镜头;(b)基于手动操纵的液体变焦镜头;(c)基于形状记忆合金变形的液体变焦镜头

    Figure  9.  Structures of pressure adjusted liquid lenses[54-56].(a)Variable-focus liquid lens based on hydraulic control.(b)Variable-focus liquid lens based on manual actuation. (c)Variable-focus liquid lens based on shape memory alloy deformation

    图  10  激光诱导变焦透镜的原理及实验[59]

    Figure  10.  Principle and experiment of varifocal liquid lens actuated by laser-induced[59]

    图  11  超声压电激励液晶透镜[60]

    Figure  11.  Liquid crystal lens actuated by ultrasonic piezoelectric [60]

    图  12  基于液体变焦镜头集成的光流控芯片[61-62]。(a)用于流动环境中生物细胞捕捉的热梯度折射率液体镜头;(b)三维液-液双凸凹变焦镜头用于生物细胞成像

    Figure  12.  Varifocal liquid lens integrated optofluidic chip[61-62].(a)Thermal gradient refractive index liquid lens for trapping single living cell in flowing environments. (b)Switchable 3D liquid-liquid biconvex lens for biological cell image

    表  1  4种介质层的实验结果

    Table  1.   Experimental results obtained with four kinds of dielectric layers

    介电层 填充液 击穿电压/V 工作电压/V
    Parylene C D.I water 95 10
    SDS 20 2
    Parylene C+Al2O3 D.I water 125 50
    SDS 22 6
    Parylene C+SiO2 D.I water 120 40
    SDS 20 2
    Parylene C+SiO2+Al2O3 D.I water 135 65
    SDS 24 8
    下载: 导出CSV
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  • 收稿日期:  2019-01-18
  • 修回日期:  2019-03-04
  • 刊出日期:  2019-12-01

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