Delivering VR in Perfect Focus With Nanostructure Meta-lenses
“If wearing a virtual reality or augmented reality headset is ever to become commonplace, hardware manufacturers will need to figure out how to make the devices small and lightweight while ensuring their images are sharp and clear. Unfortunately, this task faces a key limitation in optics:
Conventional lenses are curved glass objects that focus different wavelengths of light in different locations, which would show viewers blurry images. As a result, pretty much anything with a lens—from tiny smartphone cameras to large-scale projectors—uses multiple lenses, which add weight, thickness, and complexity, increasing cost.
We’ve figured out a new way to manufacture fully transparent, ultracompact lenses capable of properly focusing every color in the spectrum to the same point. Because our lens comprises specially designed nanostructures, which do not exist in nature, to focus light, we call it a “meta-lens.” It has the advantages of being ultracompact while capable of delivering higher-quality imaging across a wider spectrum of light than most traditional lenses, without requiring multiple lenses…”
https://singularityhub.com/2018/05/04/delivering-vr-in-perfect-focus-with-nanostructure-meta-lenses/
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