Acta Optica Sinica, Volume. 40, Issue 14, 1411003(2020)

Research on Liquid Crystal Lens Hill Climbing Autofocus Algorithm

Tiancheng Lan1, Ronghua Lan2, Xiaoxi Chen1、**, Shuang Du1, Xuehui Zhu2, Junrui Zhang2, Qichang Li3, and Mao Ye1、*
Author Affiliations
  • 1School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, China
  • 2Chengdu BOE Optoelectronics Technology Co., Ltd., Chengdu, Sichuan 611731, China
  • 3Micro LCL Technology Co., Ltd., Chengdu, Sichuan 610051, China
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    References(15)

    [2] Sun Y, Duthaler S, Nelson B J. Autofocusing in computer microscopy: selecting the optimal focus algorithm[J]. Microscopy Research and Technique, 65, 139-149(2004).

    [3] Xiao L. The research and development of the autofocus system based on the laser-triangulation[D]. Guangzhou: Guangdong University of Technology, 20-24(2011).

    [4] Ye M, Wang B, Uchida M et al. Low-voltage-driving liquid crystal lens[J]. Japanese Journal of Applied Physics, 49, 100204(2010).

    [5] Sato S. Liquid-crystal lens-cells with variable focal length[J]. Japanese Journal of Applied Physics, 18, 1679-1684(1979).

    [6] Wang B, Ye M, Sato S. Lens of electrically controllable focal length made by a glass lens and liquid-crystal layers[J]. Applied Optics, 43, 3420-3425(2004).

    [8] Ye M, Wang B, Sato S. Liquid-crystal lens with a focal length that is variable in a wide range[J]. Applied Optics, 43, 6407-6412(2004).

    [9] Ye M, Noguchi M, Wang B et al. Zoom lens system without moving elements realised using liquid crystal lenses[J]. Electronics Letters, 45, 646-647(2009).

    [10] Chen X X, Bai Y C, Chao C et al. Driving liquid crystal lens to extend focus range[J]. Japanese Journal of Applied Physics, 57, 072601(2018).

    [13] Wu X C, Guo S Y, Yi G. Evaluation function for automatic focusing based on boundary gradients[J]. Computer Systems & Applications, 19, 45-48, 170(2010).

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    Tiancheng Lan, Ronghua Lan, Xiaoxi Chen, Shuang Du, Xuehui Zhu, Junrui Zhang, Qichang Li, Mao Ye. Research on Liquid Crystal Lens Hill Climbing Autofocus Algorithm[J]. Acta Optica Sinica, 2020, 40(14): 1411003

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    Paper Information

    Category: Imaging Systems

    Received: Feb. 28, 2020

    Accepted: Apr. 13, 2020

    Published Online: Jul. 23, 2020

    The Author Email: Chen Xiaoxi (chenxiaoxi@uestc.edu.cn), Ye Mao (mao_ye@uestc.edu.cn)

    DOI:10.3788/AOS202040.1411003

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