@RichQ, yes, there are, but not every implementation uses them.
Even better is when you take a look, google "lenseless imaging shadowmask", you get some serious "structured light" opportunities -- and if you add in "speckle" you get even BETTER stuff. Turns out, apparently, that if you capture a shadowmasked CCD chip speckle image with nothing in the field of view, then ADD something, the CHANGES in the speckle field can in fact be processed to extract a TON of useful information.
As energy efficiency becomes more and more a concern for makers of electronics devices, researchers are coming up with new ways to harvest energy from sound vibration, footsteps, and even electromagnetic fields in the air.
The government wants to study your brain, and DARPA wants to use similar information to give robots true autonomy beyond any artificial intelligence developed to date. Sound like science fiction? It's not.
A quick look into the merger of two powerhouse 3D printing OEMs and the new leader in rapid prototyping solutions, Stratasys. The industrial revolution is now led by 3D printing and engineers are given the opportunity to fully maximize their design capabilities, reduce their time-to-market and functionally test prototypes cheaper, faster and easier. Bruce Bradshaw, Director of Marketing in North America, will explore the large product offering and variety of materials that will help CAD designers articulate their product design with actual, physical prototypes. This broadcast will dive deep into technical information including application specific stories from real world customers and their experiences with 3D printing. 3D Printing is