Luke P. Lee at UC Berkeley (my alma mater, yay!) built an artificial compound eye with 8,700 hexagonal microlenses. He modeled it after the eyes of dragonflies and regular flies.
They 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, that is, light-conducting channels that themselves have been created by beams of light, said Lee, the Lloyd Distinguished Professor of Bioengineering at UC Berkeley.