Philips Develops Fluid Lenses
Lars T. writes "Digital Photography Review has a short report indicating: 'Philips Research at the CeBIT exhibition is demonstrating a unique variable-focus lens system that has no mechanical moving parts. Suited to a wide range of optical imaging applications, including digital cameras.' Here is Philips' press release and the Heise News article (in German) where I first heard about it. The latter also mentions that Philips has recently used the same electrowetting effect in an 'ePaper' display prototype."
I wouldn't be surprised if any authors pre-date Herbert with coming up with liquid lenses. Mr. Herbert is just the one that came to mind.
Really interesting invention, but this was already mentioned in "Dune" by Frank Herbert where it talks about oil-lenses, if I am not mistaken.