Fig. 3: Experimental validation of the waveguide holography system in a large-étendue setting.
From: Synthetic aperture waveguide holography for compact mixed-reality displays with large étendue
a, Visualizations of the supported étendue (3D eyebox). Conventional holography, such as smooth phase techniques (red volume at the origin), supports only a portion of the eyebox that the SLM can produce (intrinsic étendue, orange volume). Our system supports a two-orders-of-magnitude larger eyebox than conventional holographic display systems (green volume). b, Visualization of our learned model across the expanded étendue. For better visualization and interpolation capabilities, refer to the Supplementary Video. c, Experimentally captured resolution chart images with expanded eyebox. Our system supports an eyebox size of 9 × 8 mm, which is significantly larger than the display-limited eyebox of conventional holographic displays. Using our implicit model, we can efficiently calibrate the system, achieving high image quality uniformly across the extended eyebox, as shown in the inset. d, Longitudinal eyebox expansion results. Markers show the corresponding pupil positions in the octahedron shown in a.
