Pancharatnam-Berry liquid crystal (PBLC) lenses with centimeter levels and high diffractive efficiency have seen enormous growth in recent years. However, their functionalities are often limited by fixed focal points and their inherent chromatic characteristics. Here, we break these bottlenecks by proposing a super-resolution generative adversarial network (SRGAN) algorithm-assisted achromatic electrically controllable zoom system based on a PBLC lens. The proposed zoom system allows for continuous zoom as the voltage changes and can achieve a 9× zoom ratio by combining liquid lenses and utilizing the bifocal PBLC lens. The experimental results reveal that the PBLC lens-based imaging systems exhibit lower spherical aberration and field curvature compared with the imaging systems based on traditional glass lenses. To solve the inherent chromatic aberration problem based on the PBLC lens, the SRGAN algorithm based on the PBLC lens imaging theory is proposed to mitigate the chromatic aberration inherent to the PBLC lenses, resulting in high-quality images. The proposed zoom system based on the large aperture PBLC lens, featuring continuous zoom capability, low chromatic aberration, spherical aberration, and field curvature, is an unprecedented promising candidate, which has competitive advantages over the existing vari-focal virtual and augmented reality (VR/AR) display systems to solve the vergence-accommodation conflict problem.

中文翻译：

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基于Pancharatnam-Berry液晶透镜的SRGAN算法辅助VR/AR显示电控变焦系统


具有厘米级和高衍射效率的 Pancharatnam-Berry 液晶 (PBLC) 透镜近年来得到了巨大的发展。然而，它们的功能通常受到固定焦点及其固有的色彩特性的限制。在这里，我们通过提出一种基于 PBLC 镜头的超分辨率生成对抗网络（SRGAN）算法辅助消色差电控变焦系统来打破这些瓶颈。所提出的变焦系统允许随着电压变化而连续变焦，并且通过结合液体透镜和利用双焦点PBLC透镜可以实现9倍的变焦比。实验结果表明，与基于传统玻璃镜头的成像系统相比，基于PBLC镜头的成像系统具有更低的球差和场曲。针对PBLC镜头固有的色差问题，提出基于PBLC镜头成像理论的SRGAN算法，以减轻PBLC镜头固有的色差，从而获得高质量的图像。所提出的基于大光圈PBLC镜头的变焦系统具有连续变焦能力、低色差、球差和场曲等特点，是一个前所未有的有前途的候选者，与现有的变焦虚拟和增强现实（VR）相比具有竞争优势。 /AR）显示系统解决了聚散调节冲突问题。