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1 March 2019 Compact augmented-reality glasses using holographic optical element combiner
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Abstract
The novel design for the compact augmented reality (AR) glasses that utilize holographic optical element (HOE) as a combiner is presented. The wide field of view (FoV) that is larger than 90°, full color and high contrast ratio (CR) are achieved based on the single layer HOE, which has the thickness of 25 μm. In order to implement compactness of AR glasses using HOE combiner, the combination of optical lenses is proposed. In this design, a chromatic aberration and astigmatism, which are caused by highly off-axis projection of the image onto HOE, and the precise wavefront reproduction that maximize the efficiency of the HOE are taken into account simultaneously. The geometrical image distortion is corrected by implementation of image pre-distortion algorithm. The interpupillary distance (IPD) adjustment is applied to compensate small eye box. Based on the design, wearable prototype is introduced. Through the experiments both on benchtop and prototype, at the distance of 2 m, large image with diagonal of 150 inches is displayed.
Conference Presentation
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bongsu Shin, Sunil Kim, Vladislav Druzhin, Polina Malinina, Sergey Dubynin, Anastasiia Bolotova, Sergey Kopenkin, Andrey Putilin, Wontaek Seo, Chang-Kun Lee, Geeyoung Sung, Yun-Tae Kim, Juwon Seo, Jae-Seung Chung, and Hong-Seok Lee "Compact augmented-reality glasses using holographic optical element combiner", Proc. SPIE 10944, Practical Holography XXXIII: Displays, Materials, and Applications, 109440G (1 March 2019); https://doi.org/10.1117/12.2507339
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