Imagine having a mobile phone wallpaper which is not a flat image, but a full 3D-Hologram, which can then be updated by the user just as easily as they currently buy replacement wallpapers. That is the promise which could come from a breakthrough by University of Arizona optical scientists.
They have developed a method of "rewriting" holograms, and while the technique is far too slow for live moving images, it would enable static images (such as wallpapers) to be changed on a whim.
The holographic displays – which are viewed without special eyewear – are the first updatable three-dimensional displays with memory ever to be developed, and while the scientists talk in depth about military applications (understandable as the military funded the work), it is the consumer market which will doubtless leap at this new development.
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