Researchers at the University of Ulm have created a projector that is embedded in jewelry to enable consumers to use their hands or the floor as a screen for reading email and other digital information.
The Ambient Mobile Pervasive Display projects an SMS graphic in front of the user, who then uses hand gestures to view who the message is from and to read it on their hand.
The researchers believe the device could fulfill most functions that normally require a screen, and could perhaps be particularly useful in navigation. A three-dimensional sensor helps the system switch from hand to ground projection by calculating the distance to the ground and to the user's hand to immediately adjust focal length. A test version of the system used a laptop carried in a backpack to control the projector and transmit updates to the device.
The team believes it can scale down this system, and a consumer version could be ready for indoor use within two years.
In April, the researchers will present their work at the ACM CHI Conference on Human Factors in Computing Systems in Toronto.
From New Scientist
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