Surface Micro-Reflector Array for Augmented Reality Display

Geometric optical waveguide display can significantly miniaturize the augmented reality eyeglasses, but suffers from the ghost image. In this paper, a method using surface micro-reflector array is proposed, which can dramatically suppress the ghost image. The transmission and expansion of the light...

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Main Authors: Zhanjun Yan, Chunlei Du, Lixin Zhang
Format: Article
Language:English
Published: IEEE 2020-01-01
Series:IEEE Photonics Journal
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8981897/
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author Zhanjun Yan
Chunlei Du
Lixin Zhang
author_facet Zhanjun Yan
Chunlei Du
Lixin Zhang
author_sort Zhanjun Yan
collection DOAJ
description Geometric optical waveguide display can significantly miniaturize the augmented reality eyeglasses, but suffers from the ghost image. In this paper, a method using surface micro-reflector array is proposed, which can dramatically suppress the ghost image. The transmission and expansion of the light bearing image are completed by using planar waveguide and micro-reflector array embedded in the surface layer of waveguide. The image quality is improved by using the dual channel to eliminate ghost image. The imaging process of optical system is modeled and simulated. The surface micro-reflector array waveguide element of 3 mm thickness is prepared for verification. The whole optical system has the advantages of simple structure, easy preparation and high structural strength. The display field of view is shown to be 25° × 25°, and the size of the full field of view area is 15 mm with even light distribution. What's more, the uniformity of imaging intensity is better than 20%, and the image is clear without ghost image, which can effectively realize the fusion of the virtual image and the real environment. Thus, the efficiency of augmented reality is greatly improved, and the danger of human eye safety is effectively avoided.
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spelling doaj-art-b53d94fc033046e390d11261b18fb92d2025-08-20T02:41:49ZengIEEEIEEE Photonics Journal1943-06552020-01-011221910.1109/JPHOT.2020.29716228981897Surface Micro-Reflector Array for Augmented Reality DisplayZhanjun Yan0https://orcid.org/0000-0001-9549-6018Chunlei Du1Lixin Zhang2Chongqing Institutes of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, ChinaChongqing Institutes of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, ChinaUnit 95903, Wuhan, ChinaGeometric optical waveguide display can significantly miniaturize the augmented reality eyeglasses, but suffers from the ghost image. In this paper, a method using surface micro-reflector array is proposed, which can dramatically suppress the ghost image. The transmission and expansion of the light bearing image are completed by using planar waveguide and micro-reflector array embedded in the surface layer of waveguide. The image quality is improved by using the dual channel to eliminate ghost image. The imaging process of optical system is modeled and simulated. The surface micro-reflector array waveguide element of 3 mm thickness is prepared for verification. The whole optical system has the advantages of simple structure, easy preparation and high structural strength. The display field of view is shown to be 25° × 25°, and the size of the full field of view area is 15 mm with even light distribution. What's more, the uniformity of imaging intensity is better than 20%, and the image is clear without ghost image, which can effectively realize the fusion of the virtual image and the real environment. Thus, the efficiency of augmented reality is greatly improved, and the danger of human eye safety is effectively avoided.https://ieeexplore.ieee.org/document/8981897/Augmented realitywaveguidesurface micro-reflector arrayvirtual image
spellingShingle Zhanjun Yan
Chunlei Du
Lixin Zhang
Surface Micro-Reflector Array for Augmented Reality Display
IEEE Photonics Journal
Augmented reality
waveguide
surface micro-reflector array
virtual image
title Surface Micro-Reflector Array for Augmented Reality Display
title_full Surface Micro-Reflector Array for Augmented Reality Display
title_fullStr Surface Micro-Reflector Array for Augmented Reality Display
title_full_unstemmed Surface Micro-Reflector Array for Augmented Reality Display
title_short Surface Micro-Reflector Array for Augmented Reality Display
title_sort surface micro reflector array for augmented reality display
topic Augmented reality
waveguide
surface micro-reflector array
virtual image
url https://ieeexplore.ieee.org/document/8981897/
work_keys_str_mv AT zhanjunyan surfacemicroreflectorarrayforaugmentedrealitydisplay
AT chunleidu surfacemicroreflectorarrayforaugmentedrealitydisplay
AT lixinzhang surfacemicroreflectorarrayforaugmentedrealitydisplay