Acta Optica Sinica, Volume. 40, Issue 14, 1411003(2020)
Research on Liquid Crystal Lens Hill Climbing Autofocus Algorithm
In this study, we propose the liquid crystal lens hill climbing autofocus algorithm. The liquid crystal lens is an electronically controlled focusing lens, which exhibits good lens performance. In a traditional glass lens imaging system, the hill climbing autofocus function requires the voice coil motor to continuously move the lens for obtaining the optimal clear image plane position. The autofocus function of the proposed algorithm is obtained by varying the voltage. Thus, the entire large-scale focusing process can be realized without any mechanical movement, miniaturizing the focusing system. The experimental results show that the liquid crystal lens exhibits good focusing performance and high imaging resolution.
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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
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)