Integral imaging near-eye 3D display using a nanoimprint metalens array

作者：Zhi-Bin Fan, Yun-Fan Cheng, Zeming Chen, Xia Liu, Wenlong Lu, Shihao Li, Shaoji Jiang, Zong Qin, Jian‐Wen Dong · 发表于：eLight · 年份：2024 · DOI：10.1186/s43593-023-00055-1 · 被引用次数：98 · 研究领域：Advanced Optical Imaging Technologies、Virtual Reality Applications and Impacts、Photonic Crystals and Applications

Abstract Integral imaging (II) display, one of the most critical true-3D display technologies, has received increasing research recently. Significantly, an achromatic metalens array has realized a broadband metalens-array-based II (meta-II). However, the past micro-scale metalens arrays were incompatible with commercial micro-displays; furthermore, the elemental image array (EIA) rendering is always slow. The two hinders in device and algorithm prevent meta-II from being used for practical video-rate near-eye displays (NEDs). This research demonstrates a meta-II NED combining a commercial micro-display and a metalens array. The large-area nanoimprint technology fabricates the metalens array, and a novel real-time rendering algorithm is proposed to generate the EIA. The hardware and software efforts solve the bottlenecks of video-rate meta-II displays. We also build a see-through prototype based on our meta-II NED, demonstrating the feasibility of augmented reality. Our work explores the potential of video-rate meta-II displays, which we expect can be valuable for future virtual and augmented reality.