A team of engineers built a system that lets people to see colors in the infrared spectrum — as long as they’re looking through a camera lens.
Researchers from Tel Aviv University built a system that, mounted on a camera, make the colors of infrared light visible to us. It makes a normally-expensive scientific tool more accessible — to the point it could be used for photography or citizen science.
![infrared](http://www.cleanfuture.co.in/wp-content/uploads/2020/11/nov2016_h06_phenom-1024x684.jpg)
Visible light is only a tiny part of the electromagnetic spectrum, which also includes radio waves, microwaves, X-rays and more. In each of these parts of the electromagnetic spectrum, there is a great deal of information on materials encoded as ‘colors’ that has until now been hidden from view.
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TAU researchers have developed cheap and efficient technology that could be mounted on a standard camera and allows, for the first time, the conversion of photons of light from the entire mid-infrared region to the visible region, at frequencies that the human eye and the standard camera can pick up.
![infrared](http://www.cleanfuture.co.in/wp-content/uploads/2020/11/nov2016_h02_phenom-1024x684.jpg)
The technology makes it possible to image gases and substances such as hydrogen, carbon and sodium, each of which has a unique color in the infrared spectrum, as well as biological compounds that are found in nature but are ‘invisible’ to the naked eye or ordinary cameras.
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It has groundbreaking applications in a variety of fields from computer gaming and photography as well as the disciplines of security, medicine and astronomy.
Aside from photography and science, the scientists suggest a few slightly more consequential uses for their low-cost infrared tech.
For example an environmental monitoring satellite could ‘see’ a pollutant being emitted from a plant or a spy satellite would see where explosives or uranium are being hidden.
Reference- Phys.Org, Futurism, Tel Aviv University Outreach, Smithsonian Magazine