NVIDIA Researchers Built The Thinnest VR Display System Yet

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The optical design is the key driver of today's VR headsets' size and bulk. With common optical technology like fresnel lenses and aspheric lenses

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achieving a relatively wide field of view necessitates a large gap between the lens and the display

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Even the simplest designs end up weighing more than 300 grammes after the plastic housing is included

 A system like Quest 2, for example, weighs little over 500 grammes with auxiliary components like a battery and cooling.

With the recent commercialization of pancake lenses, a new class of substantially more compact headsets, like as HTC's Vive Flow, has emerged

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 Although pancake lenses require a smaller gap between the lens and the display, the lens and panel are still highly distinct.

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Researchers from NVIDIA have demonstrated a new sort of VR optical system that employs "a pupil-replicating waveguide, a spatial light modulator, and a geometric phase lens."

 We invite you to read it in the researcher's own words rather than paraphrase it because it is a technically detailed yet extremely clearly written work.

It's a true holographic display, with realistic depth signals to reduce the vergence-accommodation conflict

 which occurs when your eyes are looking toward the virtual distance of virtual objects while concentrating on the fixed focal distance of the lenses.

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