Dr. Darius M. Sullivan Profile

Dr. Darius M. Sullivan

at VividQ

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Proceedings Article | 19 February 2020 Paper

Clearing key barriers to mass adoption of augmented reality with computer-generated holography

T. Widjanarko, M. El Guendy, A. Spiess, D. Sullivan, T. Durrant, O. Tastemur, A. Newman, D. Milne, A. Kaczorowski

Proceedings Volume 11310, 113100B (2020) https://doi.org/10.1117/12.2544979

KEYWORDS: Mixed reality, Holography, Computer generated holography, Augmented reality, Display technology, Spatial light modulators, Projection systems, Optics manufacturing

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Augmented and Mixed Reality promises another leap forward in productivity and lifestyle, offering benefits with a magnitude and impact matching that of the introduction of smartphones. However, to enable this, many significant technical challenges must be overcome. Here we review the state of the art, identifying key challenges established in the literature to consumer-wearable devices. In particular, we discuss: vergence-accommodation conflict (the detrimental effect of overlays that are optically inconsistent with the real-world objects they augment), the need to present overlays visible against the vast dynamic range that the human eye can process, and constraints surrounding the scalability and cost of manufacture of optics. We demonstrate that digital holography as a display mechanism not only provides an effective solution to the aforementioned challenges, but also that various hardware requirements become far less stringent. By operating in the Fourier Domain, holographic displays are freed of design compromises driven by the constraints of a pixelated screen. However, the computational cost of CGH has previously been considered prohibitive. We demonstrate that for real-world applications the latest advancements made by VividQ deliver sufficient focal accuracy at a computational cost within reach of personal mobile devices. We prove that it is now possible to clear the barriers preventing mass adoption of Augmented and Mixed Reality products with Computer-Generated Holography.

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