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Three-dimensional foaming glasses of beer could soon leap out of TV screens and on to bars, to try to tempt customers into buying drinks.
The system, from X3D Technologies in New York City, allows the virtual drinks to jump up to a metre in front of the screen. They can be viewed with the naked eye from anything up to a 120 degree angle...
...Early 3D technologies projected two images in quick succession. One was blocked by a red filter, worn over one eye, another was blocked by a green filter, worn on the other eye. But the observer had to be wearing the red-green goggles.
More recently display makers have figured out ways to filter the light before it leaves the display. X3D takes an off-the-shelf plasma screen, removes the front layer of glass and inserts a grid of red and green filters separated by opaque lines on top of the screen's pixels. [continued]
http://www.newscientist.com/news/news.jsp?id=ns99994807