UC San Diego engineers have developed a high-resolution optical lens that borrows its structure from the ancient Japanese art of paper folding.  Using diamond machining tools on calcium fluoride disks to save on bulk, this lens can gain a field of depth that was only previously possible for a glass lens seven times as thick.  Comparing its size to a “lens cap,” this fully functional camera could revolutionize the business of cell phone cameras and finally settle the debate as to whether you really need a separate camera at all.
Check out the UCSD article on this new technology here.