近日，美国华盛顿大学的Arka Majumdar&Anna Wirth-Singh及其研究团队取得一项新进展。经过不懈努力，他们研制出宽视场大光圈元双目镜。相关研究成果已于2025年1月2日在国际知名学术期刊《光：科学与应用》上发表。

该研究团队展示了一种宽视场（超过60°）元光学双透镜目镜，其入瞳直径为2.1厘米。在设计波长633纳米下，该元光学双透镜的性能与基于折射透镜的目镜系统相当。这款元光学双透镜目镜彰显了元光学在开发高品质单色近眼显示器和夜视系统方面的巨大潜力。

据悉，对于增强现实/虚拟现实和夜视等高端眼镜应用而言，宽视场和轻量化光学元件至关重要。传统折射透镜通常通过堆叠来校正宽视场下的像差，但这会限制性能，并增加尺寸和重量。尤其是，同时实现宽视场和大光圈以收集光线是理想的选择，但要在紧凑的外形尺寸中实现这一点却颇具挑战。

附：英文原文

Title: Wide field of view large aperture meta-doublet eyepiece

Author: Wirth-Singh, Anna, Frch, Johannes E., Yang, Fan, Martin, Louis, Zheng, Hanyu, Zhang, Hualiang, Tanguy, Quentin T., Zhou, Zhihao, Huang, Luocheng, John, Demis D., Stamenic, Biljana, Hu, Juejun, Gu, Tian, Majumdar, Arka

Issue&Volume: 2025-01-02

Abstract: Wide field of view and light weight optics are critical for advanced eyewear, with applications in augmented/virtual reality and night vision. Conventional refractive lenses are often stacked to correct aberrations at a wide field of view, leading to limited performance and increased size and weight. In particular, simultaneously achieving a wide field of view and large aperture for light collection is desirable but challenging to realize in a compact form-factor. Here, we demonstrate a wide field of view (greater than 60°) meta-optic doublet eyepiece with an entrance aperture of 2.1 cm. At the design wavelength of 633 nm, the meta-optic doublet achieves comparable performance to a refractive lens-based eyepiece system. This meta-doublet eyepiece illustrates the potential for meta-optics to play an important role in the development of high-quality monochrome near-eye displays and night vision systems.

DOI: 10.1038/s41377-024-01674-0

Source: https://www.nature.com/articles/s41377-024-01674-0