Design and virtual prototyping of a compact augmented reality system with 2D diffraction grating

Dmitry Zhdanov; Vadim Sokolov; Andrei Zhdanov; Igor S. Potemin; Maksim Sorokin

doi:10.1117/12.3036458

22 November 2024 Design and virtual prototyping of a compact augmented reality system with 2D diffraction grating

Dmitry Zhdanov, Vadim Sokolov, Andrei Zhdanov, Igor S. Potemin, Maksim Sorokin

Author Affiliations +

Proceedings Volume 13239, Optoelectronic Imaging and Multimedia Technology XI; 132390M (2024) https://doi.org/10.1117/12.3036458
Event: SPIE/COS Photonics Asia, 2024, Nantong, Jiangsu, China

Abstract

This paper presents a computer model of an optically transparent augmented reality system built using a configuration with two diffraction elements. A distinctive feature of this device is that the second diffraction element is a two-dimensional diffraction grating that combines functions of beam expansion and image extraction from the light guide. The technology for manufacturing two-dimensional diffraction gratings is presented. Formulas for calculating the direction of beams diffracted by the diffraction gratings, including the two-dimensional grating, are proposed. Two ray-tracing algorithms for image formation by optical augmented reality systems containing diffraction gratings, including two-dimensional ones, are proposed. Based on these algorithms, virtual prototyping of several augmented reality systems was conducted. Design features, advantages, and disadvantages of these systems were identified. Recommendations for the design and optimization of augmented reality systems using a dual diffraction element configuration are provided.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Dmitry Zhdanov, Vadim Sokolov, Andrei Zhdanov, Igor S. Potemin, and Maksim Sorokin "Design and virtual prototyping of a compact augmented reality system with 2D diffraction grating", Proc. SPIE 13239, Optoelectronic Imaging and Multimedia Technology XI, 132390M (22 November 2024); https://doi.org/10.1117/12.3036458

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