Curved waveguide combiner for HUD/AR

Pierre-Alexandre Blanche; Craig T. Draper

doi:10.1117/12.2592767

7 September 2021 Curved waveguide combiner for HUD/AR

Pierre-Alexandre Blanche, Craig T. Draper

Proceedings Volume 11828, ODS 2021: Industrial Optical Devices and Systems; 1182806 (2021) https://doi.org/10.1117/12.2592767
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Abstract

Most of waveguide implementation for HUD or augmented reality combiner are flat pieces of glass because the image propagation does not suffer from any aberration when traveling along their length. However, this type of combiner does integrate seamlessly in front of the viewer eyes and a curved optics would be much more appealing. Using holographic optical elements, we demonstrated that it is possible to correct the aberrations induced by the curved surfaces of the waveguide, and display a aberration-free image to the viewer. This correction applies for different waveguide geometries (1D or 2D curvature) as well as different pupil expansions (1D or 2D expansion). A Zemax model is presented along a curved waveguide demonstrator.

Conference Presentation

Citation Download Citation

Pierre-Alexandre Blanche and Craig T. Draper "Curved waveguide combiner for HUD/AR", Proc. SPIE 11828, ODS 2021: Industrial Optical Devices and Systems, 1182806 (7 September 2021); https://doi.org/10.1117/12.2592767

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