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Hybrid Reflective-Diffractive Waveguide Display with High Optical Efficiency

delete2025-09-02
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PRE
AI
J
J. Qin
Z
Zhi Li
Y
Yongfang Xie
S
Shanwen Zhang *
Q
Qiang Song *
王静 封面图
王静 (Jing Wang)
Z
Zhiming Cheng
Y
Yuan Chen
张茜 封面图
张茜 (Qian Zhang)
H
Huigao Duan
C
Changhe Zhou
DOI:10.1002/lpor.202500957delete
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摘要

摘要

En 中文
波导合束器在增强现实(AR)领域被广泛认可为一种领先解决方案,因其具有紧凑的形态、宽广的视场(FOV)和大的出瞳区域。然而,现有解决方案存在关键限制。基于表面浮雕光栅的波导难以通过二维(2D)出瞳扩展(EPE)实现单层全彩成像,且均匀性差、效率低。相比之下,采用级联部分反射镜的几何波导会引入杂散光,损害图像质量。为克服这些挑战,提出了一种混合反射-衍射波导(HRDW)架构,该架构协同结合了一对特殊设计的光栅和一组嵌入式部分反射镜。该配置能够在保持高光学效率的同时实现高效二维EPE。开发了一种综合设计方法,将三维(3D)空间球面解析模型与自研的多维光线-场追迹工具相结合,用于HRDW。采用全息干涉光刻和分子键合技术制造了HRDW原型。实验验证表明,其FOV为30°,出瞳区域为12×10 mm,平均光学效率为2556.9 nits/lm——比传统衍射波导高出约一个数量级。本研究提出了一种先进的混合波导架构和面向下一代AR显示的稳健光学设计框架。
Keyword:
3D k-space sphere
augmented reality
hybrid reflective-diffractive waveguide
waveguide display

期刊

L
Laser and Photonics Reviews
IF:
10
论文数:
3.7K
被引数:
2.1W

机构

H
hunan university
学者数:
4.5W
论文数: 3.3W
被引数: 70
J
Ji Hua Laboratory
学者数:
837
论文数: 574
被引数: 7.9K
J
jinan university
学者数:
4.3W
论文数: 2.7W
被引数: 38
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