MIT has developed 'Photo-Chromeleon' that can change the color of an object like a chameleon, and the color can be changed over and over again
Photo-Chromeleon , a team at the Massachusetts Institute of Technology (MIT) Computer Science and Artificial Intelligence Laboratory (CSAIL), uses reprogrammable inks to change the color of objects when exposed to ultraviolet or visible light. We have developed a technology called. This process is reversible and the color change can be repeated over and over again.
Photo-Chromeleon: Re-Programmable Multi-Color Textures Using Photochromic Dyes
Objects can now change colors like a chameleon
You can understand what kind of technology 'Photo-Chromeleon' is by watching the following movie.
Photochromeleon: Creating Color-Changing Objects --YouTube
Sneakers placed in front of the camera
The light is radiated ...
Somehow a pattern emerges.
When it settled down, a pattern was printed on the side.
Similarly, on the back of the smartphone cover ...
The five-storied pagoda was printed.
The pattern can be changed as many times as you like.
The second half of the movie contains the actual paint for 'Photo-Chromeleon' and the making of how to make 'objects that can change color'.
Three '
When exposed to ultraviolet rays, it changed to three colors: blue, red, and yellow.
Mix this dye to create a multicolor ink.
The resulting ink is sprayed onto the object to fix it.
This is a system for 'coloring'. On the left is a DLP projector and UV projector, and on the right is a turntable on which objects are placed.
The user uses a 3D model of the target object ...
Specify what color to paint separately.
The rest is left to the 'coloring' system.
A color pattern is projected onto the object via the projector.
The table rotates and projects in four directions.
The object will now be colored in the specified color.
The colored pattern can be erased with ultraviolet rays.
After erasing it, you can 'color' the new pattern from above.
The color can thus be changed as many times as you like.
This technology was developed by the same team that developed 'ColorFab' that can print special ink in 3D.
According to the team, the available color gamut is limited due to dye restrictions, so the challenge is to be able to create a wider color gamut.
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