The color of any objectthat logically selects and is set during its manufacture. And if we need to change the colour, then you just need to take the paint and manually recolor what we need. The other being American engineers of MIT have developed a system that allows you to repeatedly repaint the objects by irradiation of the light waves. They created a special mixture, which can be applied to the object, and then using a series of manipulations to set the subject of the desired color. Moreover, the color will be no problem to replace in the future.
How to change the color of the object without repainting it with paint?
For a long time already there are so-called photochromic materials, which change their color under the influence of light irradiation. In a similar way to construct the skin of chameleons. However, if chameleons can long retain its color due to the physiological characteristics, the photochromic materials retain the changed state only when exposed to radiation. That is, as soon as the photochromic material “cease to Shine”, the color of the object will return to its original state.
However, in 2018, a group of scientists from the Massachusetts Institute of technology (MIT) have learned to print on a 3D printer the object whose color can be changed using ultraviolet or visible radiation. The flaw in this design was the only one — the subject should initially create a new material. For more than a year experts have worked hard to create on the basis of their developments ink that you can use for painting any objects.
Scientists from MIT have created a solution containing three dye: cyan, Magenta and yellow. Each dye has photochromic properties, and is activated by visible light of a specific wavelength. The solution can be applied to any object in any convenient way: using a sprayer, paint brush and so on. Then the object should be put on a rotating platform on which shines the particular emitter.
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Repainting occurs in two stages. First paint the object is illuminated by UV light, causing all the dyes are activated. After that, the emitter begins to Shine on the object with waves of different lengths, which each of the three colors (depending on the intensity and duration of radiation) is a hue. If the item you want to repaint, the whole process should be repeated: first “discolor” all ultraviolet light, and then by setting the new parameters to give the object a new color. We would like to imagine this paint? Write about it in our chat in Telegram.
It is worth noting that experts from MIT have taken care to create software in order to repaint the items was pretty simple. They have developed a plugin for Blender, pretty well-known programs for 3D modeling. In order to specify the object desired color, you will need a 3D model of the object. On top of her just imposed additional layers, each of which can specify its color. Next, the installation will do everything for you. In more detail the principle of operation of the new technology you can see in the video below.