Goodbye bulky helmets? this ultra: This article explores the topic in depth.
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Goodbye bulky helmets? Therefore, this ultra:
One of the main problems of virtual. Similarly, mixed reality headsets is their thickness, a constraint imposed by the lenses used. Moreover, A new holographic perspective would create glasses only a few millimeters thick. For example,
The augmented reality glasses are increasingly fine, almost resembling normal glasses. Similarly, This is not the case for virtual reality. Similarly, mixed reality headsets, such as Meta Quest 3 orAppleApple Pro Vision, which remain very thick. The reason for this difference does not reside in the amount of electronic components, but in optical elements.
The Meta Quest 3 is still finer than its predecessor. Quest 2, thanks to a change of optics, going from lenseslenses Fresnel with pancake lenses. But it is far from being enough to be as fine as glasses. To solve this goodbye bulky helmets? this ultra problem, researchers from Meta and Stanford University in the United States have developed a new ultra-fine optics.
A revolutionary ultrafine holographic – Goodbye bulky helmets? this ultra
In an article published in the journal Nature Photonicsthe researchers explain that they have abandoned the. stereoscopic flat images usually used in these helmets in favor of a holographic system based on a tailor -made wave guide. Small laserslasers red. green and blue are directed to the wave guide by lowercase mirrorsmirrors (MEMSMEMS), then the lightlight is transported to a spatial light modulator (SLM), before arriving at the lens. This system is only three millimeters thick.
The advantage is that it is a hologramhologram with real depth. which eliminates the problem of focal distancefocal distance goodbye bulky helmets? this ultra fixes current helmets. The system uses theIAIA To calibrate the SLM and eliminate most of the artefacts. However, this system still has limits. The field of vision is only 38 degrees on the diagonal (34.2 degrees horizontally and 20.2 degrees vertically). It’s very little. By way of comparison, the Meta Quest 3 offers a visual fieldvisual field 100 degrees per 96 degrees. This is not the first time that we have seen such an approach. In 2022, NVIDIA had shown a similar optics of only 2.5 mm thick. But the field of vision was limited to only 23 degrees. This new advance, this shows that mixed reality glasses, rather than helmets, are indeed possible. But it will not be for now.
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