We’re all intimately conversant in the backs of our hands, so why not use them as a haptic interface to govern our gadgets? That is the idea behind the device pictured above — a nifty little wrist sensor that turns your paw right into a flesh-toned trackpad. Designed by Kei Nakatsuma, a PhD student on the University of Tokyo, this contraption employs infrared sensors to trace a user’s finger because it moves around the back of a hand. These movements are mirrored on a wristwatch-like display, owing to seven IR detectors and a collection of piezoelectric sensors, effectively turning any digit into an organic stylus or mouse. Nakatsuma, who unveiled his work at this week’s SIGGRAPH , says his creation can’t handle the more complicated, pinching or rotating gestures you are able to manipulate on most smartphone touchscreens and acknowledges that the screen might be difficult to read in direct sunlight. However the underlying technology could pave the way in which for similarly handy designs, while allowing users to engage with their gadgets with no need to constantly glance at their screens, or go fishing of their pockets. Feel your well beyond the break to look a video of the device in action.
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