criticalbelievers.proboards.com From Star Wars to Red Dwarf, moving holograms have long been a staple of science fiction. Now scientists have invented a gadget that allows viewers to watch three dimensional holographic videoes without the need for special glasses. The breakthrough could revolutionise television, movies and computer games - and see the introduction of 3D advertising billboards on street corners. It could even be used to create three dimensional maps and allow surgeons to perform operations hundreds of miles from patients. The invention, called holographic telepresence, is the brainchild of researchers at the University of Arizona College of Optical Sciences. Dr Nasser Peyghambarian who led the research, said: 'This advance brings us a step closer to the ultimate goal of realistic holographic telepresence with high resolution, full colour, human sized, 3D images that can be sent a video refresh rates from one part of the world to another. 'Holographic telepresence means we can record a three-dimensional image in one location and show it in another location, in real-time, anywhere in the world.' The prototype uses a 10 inch screen made from a new type of 'photorefractive' material that can refresh a hologram every two seconds. The image is recorded using an array of normal cameras, each of which views the object from a different point of view. The information is then encoded onto a fast-pulsed laser beam which interferes with another beam of light, creating ...
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