Chinese and American scientists have developed an electro-optical system
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The materials in the above figure are adjusted to mimic state.
If you put your phone on the table at a party, it will gradually disappear under the eyes of everyone. Is this cool? In industrial or military fields, this is also part of life-saving technology. According to the report of the Physicist Organization Network on August 19, researchers from several universities in the United States and China recently collaborated to develop a technology that allows materials to automatically recognize the surrounding environment and adapt to and mimic the surrounding environment. Related papers were published in the "National Academy of Sciences" published this week.
The first author of the paper, Yu Cunjiang, associate professor of mechanical engineering at the University of Houston, United States, described the study of the electro-optical mimicry system as inspired by cephalopods. The cephalopods are a group of deep-sea animals, including octopuses, squid, squid, etc. They can quickly change colors, adapt to the surrounding environment or stand out from the environment, and are used for camouflage hiding, communication, predation warnings and other purposes.
Researchers have developed a prototype device that mimics the octopus skin function, which can generate black-and-white patterns, have different gray levels, and naturally adapt to the surrounding environment without the need for user input instructions or external detection. But Yu Cunjiang, this device can also be designed to work in the full-color spectrum.
Although today's prototype devices are less than one square inch, it is easy to expand manufacturing. The device's skin is flexible and flexible, consisting of multiple layers of ultra-thin layers, combined with semiconductor actuators, switching elements, inorganic reflector photosensitive elements, and organic color-changing materials that automatically match the background color. The materials they studied included a pixel device that could simulate every key element in the skin of an octopus, except for flash cells and central visual organs.
The early mimicry system could not be adjusted automatically. Yu Cunjiang said: "Our equipment can 'see' the colors and match them. It uses a thermochromic material to identify the environment."
Although the most valuable application of this kind of equipment is the defense or industrial field, consumer applications such as toys and wearable electronic devices also have a great demand for this technology. It can also be used on luxury cars. Car owners may feel that it is cool to have a car that is invisible, plus videos of the people coming and going by the car blocked by the camera. King, these technologies can be combined for the same purpose. (Chang Lijun)
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