other tech: powerful artificial eyes based on insect eyes
U.S. scientists say they’ve created super-powerful artificial eyes inspired by those of dragonflies and other insects. The artificial eyes are the first hemispherical, three-dimensional optical systems to integrate microlens arrays — thousands of tiny lenses packed side by side — with self-aligned, self-written “waveguides,” which are light-conducting channels created by beams of light, Lee explained. …