Imagine a light switch or a book that appear only when you need them: Japanese scientists are one step closer to becoming reality scenes from science fiction movies after you create a hologram that can also be felt.
"Until now, holography was only for the eyes, and if you tried to touch her hand shot through," said Hiroyuki Shinoda, a professor at Tokyo University and one of the developers of the technology.
"But now we have a technology that also adds the sensation of touching the hologram", told Reuters.
Holograms-usually appear three-dimensional images on credit cards, DVDs and CDs to prevent counterfeiting. The larger ones have also been used in the entertainment industry.
But by using ultrasonic waves, scientists have developed software that creates pressure when the hand of a user "touches" a hologram projected.
To track a user's hand, researchers use the controls on the popular Nintendo Wii console, which cover the projection area of the hologram.
So far the technology has been tested with relatively simple objects, but researchers are planning more practical, as virtual switches in hospitals, for example, and other places where pollution is a problem contact.
Shinoda also said the technology could be used to replace other physical objects, making it economical and ecological.
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