Imagine you can see in the darkdistinguish invisible and even signals identify colors normally imperceptible without light. It is not science fiction, but the last frontier of scientific research: contact lenses that offer a “super-vision” to humans.
A team of neuroscientists and scientists of the materials of theUniversity of Science and Technology of China has developed contact lenses that allow you to perceive infrared lightpart of the electromagnetic spectrum normally invisible to the human eye. The studypublished in the scientific journal Cellis already going around the world, arousing great curiosity.
How infrared contact lenses work
These innovative lenses they incorporate nanoparticles into a flexible and transparent polymersimilar to that used in conventional contact lenses. In this case, however, the nanoparticles absorb infrared light and convert it into visible wavelengths, thus allowing the human eye of perceive otherwise invisible signals. Unlike the traditional night viewers (optical tools designed to allow vision in poor or total darkness), these lenses do not require an external power source And they maintain transparency, allowing users to see both infrared light and the one visible simultaneously. THE testconducted on mice, have shown that The animals were able to perceive infrared lightas highlighted by specific behaviors and brain activities. In human beings who subjected themselves as volunteers to the tests, the lenses allowed detect flashing infrared signals and to identify the direction from which the light came.
In a completely surprising way, the effect He was more pronounced when people closed his eyes. The infrared light penetrates the eyelids more effectively of visible light, reducing the “visual noise” and improving the perception of signals. Also, regulating the nanoparticles, the researchers managed to make different wavelengths of the heartless waveleness as distinct colors: for example, 980 nm as blue, 808 Nm as green and 1,532 Nm as red.
Practical applications? This technology it could be adapted to help people with Daltonismconverting colors difficult to distinguish in more easily perceptible shades. Furthermore, this technologists could prove useful in improvement of vision in conditions of poor visibilityin communication through infrared signals and integration into intelligent systems for rescue and emergency operations. A world of possibility opens, in the name of super vision.
Source: Vanity Fair
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