• Laser & Optoelectronics Progress
  • Vol. 60, Issue 19, 1923002 (2023)
Zhenhao Huang1, Zhiqiang Liu1, Hongjun Lin2, and Mao Ye1、*
Author Affiliations
  • 1School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan , China
  • 2Huawei Technologies Co., Ltd., Shenzhen 518129, Guangdong , China
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    DOI: 10.3788/LOP221247 Cite this Article Set citation alerts
    Zhenhao Huang, Zhiqiang Liu, Hongjun Lin, Mao Ye. Tunable Fresnel Liquid Crystal Lens with Large Aperture[J]. Laser & Optoelectronics Progress, 2023, 60(19): 1923002 Copy Citation Text show less

    Abstract

    A liquid crystal lens is a type of optical lens that can be electronically focused without mechanical movement. This paper proposes a large-aperture liquid crystal lens that is divided into multiple Fresnel zones. To guarantee the optical power and response speed, the aperture of the liquid crystal lens is significantly improved to 1 cm. The Fresnel zones are connected and controlled by means of interdigital electrodes, and the driving voltage of each Fresnel zone is the same, which simplifies the driving method. The optical power of the newly proposed Fresnel liquid crystal lens can be controlled between -1.62D and +1.57D via the applied voltage. After the incident plane wave is modulated by the Fresnel liquid crystal lens, the wavefront is close to a parabolic distribution. This lens shows favorable optical characteristics. In this work, the lens is used as a focusing element in an imaging system for demonstration purposes.
    Zhenhao Huang, Zhiqiang Liu, Hongjun Lin, Mao Ye. Tunable Fresnel Liquid Crystal Lens with Large Aperture[J]. Laser & Optoelectronics Progress, 2023, 60(19): 1923002
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