With Meta's support, Princeton IT staff have modified already-used 3D display technology so that it can be used as portable virtual reality and augmented reality glasses. This development was reported in an issue of Nature Communications published at the end of April.
The basis of current SLM holographic displays is a liquid crystal LCoS display, one of its limitations is that it operates in a narrow viewing angle. It can be enlarged, but the stereoscopic image must be small, otherwise it will blur and disappear if the viewer turns his gaze to a slightly different angle.
According to Felix Hyde, an assistant professor at Princeton University, that's why, to experience a monitor-sized screen, a 3D display the size of a movie screen would be needed.
Engineers solved the problem by installing a new optical component, a special pattern lens,
Not only has it exceeded the viewing angle limits of an SLM display, but the resulting device is so small and lightweight that, compared to current VR devices, it can be mounted on glasses. According to experts, it can be an ideal assistant for driving, surgical intervention or making home repairs.
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