The futuristic clothing brand Vollebak has just unveiled a prototype of a rudimentary thermal invisibility jacket developed in collaboration with scientists. If it only works in the infrared spectrum for the time being, it could one day become a true invisibility cloak.
An invisibility cloak would be of little use if it did not camouflage its wearer in the wraith. infraredinfrared. A simple thermal camera would be enough to spot anyone trying to hide. It is on the basis of this observation that the researchers have decided to concentrate their efforts first on the thermal raysthermal rays of the human body. The garment thus produced is a proof of concept and the result of a collaboration between the National Graphene Institute from the University of Manchester in the UK and Vollebaka futuristic clothing brand.
Instead of a cape, the researchers opted for a jacket that requires fewer materials. It is covered by 42 squares composed of more than a hundred layers of graphenegraphene. Each square can be controlled as a pixel. via gold threads and coppercopper, and programmed using a microcontroller embedded in the jacket. They thus manage to modify their thermal radiation without changing their temperature.
Demonstration of the thermal invisibility jacket, where each square can be controlled independently to mask thermal radiation from the wearer. Only English subtitles. © Vollebach
By applying an electric voltage to the squares, ionsions are pushed between the graphene layers thanks to a liquidliquid ionic. The more ions, the less heat radiation the square emits and the cooler it appears. Since each square can be programmed individually, by increasing the number of squares and reducing their size, it would be possible to blend in with the background, at least for a thermal camera. The quality of invisibility cloaks might one day be judged by their resolution…
In theory, the jacket is not limited to spectrumspectrum infrared. According to the researchers, with enoughEnergyEnergyit is also possible to change the colorcolor graphene in the visible spectrum. So this technology has the potential to one day become a true invisibility cloak, if not tomorrow.
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