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New contact lenses give people infrared vision — even with their eyes shut. Sci-fi-style technology uses nanoparticles to convert infrared light into visible light that humans can see.
Sci-fi-style technology uses nanoparticles to convert infrared light into visible light that humans can see.
People who tested a new type of designer contact lens could see flashing infrared signals from a light source.Credit: Yuqian Ma, Yunuo Chen, Hang Zhao (CC BY-SA) For instance, wearers would be able to read anti-counterfeit marks that emit infrared wavelengths but are otherwise invisible to the human eye, says co-author Yuqian Ma, a neuroscientist at the USTC. Li, who was not involved in the work, offers another possibility: the lenses might be worn by doctors conducting near-infrared fluorescence surgery, to directly detect and remove cancerous lesions “without relying on bulky traditional equipment”.
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