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Journal https://www.spiedigitallibrary.org/journals/advanced-photonics/volume-3/issue-03/036002/Infrared-upconversion-imaging-in-nonlinear-metasurfaces/10.1117/

Journal https://www.spiedigitallibrary.org/journals/advanced-photonics/volume-3/issue-03/036002/Infrared-upconversion-imaging-in-nonlinear-metasurfaces/10.1117/1.AP.3.3.036002.full https://www.spiedigitallibrary.org/journals/advanced-photoni... Better article: https://phys.org/news/2021-06-thin-film-tech-revolutionize-night-vision.html https://phys.org/news/2021-06-thin-film-tech-revolutionize-n... > "Our technology is able to transform infrared light, normally invisible to the human eye, and turn this into images people can clearly see—even at distance. > "We've made a very thin film, consisting of nanometre-scale crystals, hundreds of times thinner than a human hair, that can be directly applied to glasses and acts as a filter, allowing you to see in the darkness of the night."

bsder 5y ago
If it's a filter, how does this help? The problem is that we don't have enough light to activate the receptors not that we have too much light interfering. I was hoping to see some sort of atomic-scale structure that shifted the frequencies of a tiny amount of infrared light just enough for our visual system to pick it up.
- eloff 5y ago
  > I was hoping to see some sort of atomic-scale structure that shifted the frequencies of a tiny amount of infrared light just enough for our visual system to pick it up. That's almost what it says it does. I think you took the word filter too literally. > "Our technology is able to transform infrared light, normally invisible to the human eye, and turn this into images people can clearly see—even at distance. It sounds like it might display the image on a thin screen rather than shift the light into the visible spectrum, but it was light on details.
eloff 5y ago
I really want to buy this! That's an amazing sci fi dream becoming reality.
kaminar 5y ago
Wouldn't be surprised if the tech gets confiscated by the military, for national security reasons.
- sschueller 5y ago
  You can buy devices that display infrared everywhere. Only cool thing here is that is passive.

bsder 5y ago

If it's a filter, how does this help? The problem is that we don't have enough light to activate the receptors not that we have too much light interfering. I was hoping to see some sort of atomic-scale structure that shifted the frequencies of a tiny amount of infrared light just enough for our visual system to pick it up.

eloff 5y ago
> I was hoping to see some sort of atomic-scale structure that shifted the frequencies of a tiny amount of infrared light just enough for our visual system to pick it up. That's almost what it says it does. I think you took the word filter too literally. > "Our technology is able to transform infrared light, normally invisible to the human eye, and turn this into images people can clearly see—even at distance. It sounds like it might display the image on a thin screen rather than shift the light into the visible spectrum, but it was light on details.

eloff 5y ago

I really want to buy this! That's an amazing sci fi dream becoming reality.

kaminar 5y ago

Wouldn't be surprised if the tech gets confiscated by the military, for national security reasons.

sschueller 5y ago
You can buy devices that display infrared everywhere. Only cool thing here is that is passive.