Octopus-Inspired Camo Changes Color In Light
Researchers have taken a tip from the ocean’s masters of disguise to develop a new active camouflage system.
An international team of scientists coupled heat-sensitive dye with a distributed grid of photoreceptors to make a flexible material that changes color based on the light that falls on it. When any of the system’s cells is heated above 117 degrees Fahrenheit by a silicon diode underneath, the dye turns from black to clear.
Like the cephalopods that inspired the work, the camo system can respond to changes in light within two seconds using
"The concepts provide realistic routes to thin sheets that can be conformally wrapped onto solid objects to modulate their visual appearance, with potential relevance to consumer, industrial, and military applications," the authors write in a report on their work published today in the journal PNAS.