Design method and simulation of large field-of-view diffractive waveguide displays

Szu-Ta Chien; Po-Han Chiu; Wei-Ting Hsu; Wen-Chang Hung; Yu-Chieh Cheng

doi:10.1117/12.2648232

16 March 2023 Design method and simulation of large field-of-view diffractive waveguide displays

Szu-Ta Chien, Po-Han Chiu, Wei-Ting Hsu, Wen-Chang Hung, Yu-Chieh Cheng

Proceedings Volume 12449, Optical Architectures for Displays and Sensing in Augmented, Virtual, and Mixed Reality (AR, VR, MR) IV; 124490Z (2023) https://doi.org/10.1117/12.2648232
Event: SPIE AR | VR | MR, 2023, San Francisco, California, United States

Abstract

A diffractive waveguide-based optical combiner is one of the most commonly used elements to construct head mount AR displays. This paper proposes a design method for a compact and wide field-of-view layout for an AR-applicable diffractive waveguide. The layout design utilizes multiplexed 1D gratings as both the exit pupil expander (EPE) and the out-coupler, combined with minimum-sized 2D grating to improve image uniformity and deliver a better user experience. The design outcome is optimized and simulated in LightTools and RSoft. The result has indicated the feasibility of a compact and 60 degrees FOV design of a diffractive waveguide AR display with a 12 mm × 10 mm eye box.

Conference Presentation

Citation Download Citation

Szu-Ta Chien, Po-Han Chiu, Wei-Ting Hsu, Wen-Chang Hung, and Yu-Chieh Cheng "Design method and simulation of large field-of-view diffractive waveguide displays", Proc. SPIE 12449, Optical Architectures for Displays and Sensing in Augmented, Virtual, and Mixed Reality (AR, VR, MR) IV, 124490Z (16 March 2023); https://doi.org/10.1117/12.2648232

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