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Physicists at ETH Zurich have developed a lens that can transform infrared light into visible light by halving the wavelength of incident light. The study is published in Advanced Materials.

Night vision goggles work by converting infrared light into visible light, allowing sight at night. The principle of the contact lenses is the same as that of night vision goggles.

06/01/2025June 1, 2025 Chinese researchers have developed an infrared contact lens that makes night vision possible. Nanoparticles make the previously invisible light range visible to the human eye.

The contact lenses need no power source, and according to The Guardian, “wearers can see infrared and all the normal visible colours of light at the same time”.

While night vision goggles, with which one can also see infrared light, have been around for a long time, these contact lenses boast a few key advancements.

The new world of contact lenses has arrived: ones that allow individuals to see in the dark with their eyes closed. In the journal Cell, neuroscientists explained how they created contact lenses ...

Scientists have developed revolutionary contact lenses that grant wearers the ability to see infrared light—a feat humans naturally cannot achieve. This breakthrough, detailed in the journal ...

The contact lenses in question are made with nanoparticles which absorb infrared light, and as Phys.org, which spotted this invention, points out, specifically this is near-infrared light (NIR ...

But unlike night vision goggles, the contact lenses do not require a power source. They work by converting the infrared light so that it can be seen by the wearer as either red, green or blue light.