Our eyes are already a natural wonder. Equipped with over 6 million cones and his 120 million rods, or light-sensing cells, these eyes can make the world look beautiful with a modern flat-screen-like resolution. TV does not reach. In fact, it’s estimated that his 80% of the information that reaches our brain comes through our eyes. But researchers have been looking for alternatives for some time. First, to help people who have lost their sight, and second, to equip robotic systems with more efficient technology. That was the goal of a research team at the Hong Kong University of Science and Technology, led by Huang Zhiyong, when creating a new prototype bionic eye. And, in theory, what they achieved could far exceed the performance of conventional eyeballs.
result of this Innovative technology project A three-dimensional retina with a dense network of highly photosensitive nanotubes. The team incorporated an aluminum oxide film with tiny sensors in perovskite, a photosensitive material used in some solar panels. When these “cells” capture light signals, they simulate the visual cortex and send the signals through a network of tubes connected to processing equipment. The point is that nanotubes are so sensitive that they can exceed the wavelength of the human eye, reaching frequencies of 800 nm (nanometers). That is, the spectrum between visible light and infrared. And that means providing night vision to humans, as its developers point out.For reference, the human eye can process his 200-800 nanometers.
Another advantage for biological eyes is that the new devices can adapt faster to differences in light intensity. Also, the density of nanotubes in the bionic eye prototype is six times higher than the visual cells in the human retina.
A more reliable referee?
All this means that the device may have a higher resolution than its biological counterpart. We were able to distinguish objects. However, the researchers reveal that this possibility is limited by the size of the back contact electrode. Either way, they believe the new technology can be used in a variety of applications, including rescue operations, security, and even refereeing sporting events. But the real revolution is restoring sight to people with blindness problems. But the real challenge before achieving that is connecting that visual system to our nervous system. Some scientists believe this will happen by the end of this decade. And progress in that direction Technologies such as 3D printingIt hasn’t been seen yet.
sauce: Futurism
