超表面在增强现实近眼显示中的应用研究进展  

Research Progress on Application of Metasurface Concept in Augmented Reality Near-Eye Displays

作　　者：李洋洋 张超[1] 杨宁[1] 袁影[1] 郭金坤 王晓蕊[1] Li Yangyang;Zhang Chao;Yang Ning;Yuan Ying;Guo Jinkun;Wang Xiaorui(School of Optical Engineering,Xidian University,Xi’an 710071,Shaanxi,China)

机构地区：[1]西安电子科技大学光电工程学院,陕西西安710071

出　　处：《激光与光电子学进展》2022年第20期61-73,共13页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(62075176,62005204,62005206);教育部中央高校基本科研业务费专项基金。

摘　　要：增强现实近眼显示器是信息显示技术领域的研究热点之一。针对传统近眼显示系统结构存在的视场与体积不能兼顾的瓶颈技术问题,超表面光学元件凭借其光场多维物理量的调控能力和平面集成化优势,为开发大视场轻薄紧凑化的近眼显示器提供了新思路。首先介绍了超表面光场调控原理,重点分析了基于超表面的多种增强现实近眼显示光学系统设计方案,主要包括基于超表面和自由曲面的光学系统设计方案、基于超表面的视网膜投影显示设计方案、基于超表面的光波导设计方案及全息显示设计方案等,讨论了超表面在增强现实近眼显示领域面临的挑战,并对其未来的前景进行了展望。Augmented reality near-eye display devices have attracted significant attention in the information display technology field.To address the bottleneck in the structure of traditional near-eye display systems,which cannot balance the field of view and volume,metasurface optical elements have provided a new concept for developing a large field of view,thin,and compact near-eye displays due to their ability to modulate the multidimensional physical quantities of the optical field and the benefits of planar integration.This paper introduces the principle of metasurface optical field modulation and then focuses on the design of various optical systems for augmented reality near-eye displays based on the metasurface concept,including the design of optical systems based on the metasurface and a freeform surface,the design of a retinal projection display based on the metasurface concept,the design of an optical waveguide based on the metasurface concept,and the design of a holographic display device.The challenges faced by metasurfaces in terms of augmented reality near-eye displays are discussed,and relevant future prospects are presented.

关 键 词：成像系统 增强现实 近眼显示 超表面 光学设计 

分 类 号：TN27[电子电信—物理电子学] TB133[机械工程—光学工程]