Wide field of view HOE-based waveguides system for AR display

Борисов, В. Н.; Okun, R. A.; Angervaks, A. E.; Vostrikov, Gavril N.; Данилова, Светлана Валерьевна; Muravev, Nikolay; Попов, М. В.; Putilin, A. N.

doi:10.1117/12.2565548

Cited by 1 publication

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“…In recent years, holographic waveguide displays have received extensive attention due to their small size and light weight. Such a holographic waveguide is mainly composed of a micro image source, a collimation system and coupling elements [1,2]. Among them, the coupling elements, as the core element of the holographic waveguide display, play a crucial role in the imaging quality, field of view (FOV) and clarity.…”

Section: Introductionmentioning

confidence: 99%

15.4: Holographic Waveguide Display with Large Field of View Based on Volume Holographic Grating

Wang

Zhang

Shen

et al. 2022

Symp Digest of Tech Papers

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The field of view of waveguide display systems based on volume holographic gratings is often limited by the grating diffraction response bandwidth, which still cannot meet people's needs for large field of view displays. In order to expand the viewing angle of the waveguide display, the influencing factors of the viewing angle of the waveguide display are analyzed based on the strictly coupled wave theory model, and a double‐layer volume grating waveguide structure that can effectively expand the diffraction response bandwidth is proposed. The grating is prepared by the variable‐angle fractional exposure method, and the holographic waveguide display system is built. The results show that the horizontal and vertical viewing angles of the display system can be expanded to 33° and 22°, respectively, and the diagonal viewing angle is 40°.

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Section: Introductionmentioning

confidence: 99%