Ghost image analysis for pancake virtual reality systems

被引：2
作者：
Luo, Zhenyi [1 ]
Ding, Yuqiang [1 ]
Yang, Qian [1 ]
Wu, Shin -tson [1 ]
机构：
[1] Univ Cent Florida, Coll Opt & Photon, Orlando, FL 32816 USA
来源：
OPTICS EXPRESS | 2024年 / 32卷 / 10期
关键词：
Compilation and indexing terms; Copyright 2025 Elsevier Inc;
D O I：
10.1364/OE.523196
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Pancake optics (also known as polarization-based catadioptric system) has been widely used as the imaging lens for virtual reality (VR) and mixed reality (MR) headsets because of its compact formfactor and excellent image quality. However, such a folded pancake optics not only dramatically lowers the optical efficiency to 25% because of the utilization of a half mirror, but also suffers from ghost images due to the stray light from multiple surface reflections and imperfect polarization control inside the optical system. In this paper, the origins including the light paths of the ghost images are explored by experiment and then analyzed by simulation. The effect of different incident angles on the intensity of each ghost is also investigated. (c) 2024 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
引用
收藏
页码：17211 / 17219
页数：9
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