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Showing posts from July, 2008

Electronic Digital Paper

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Xerox Corporation has announced that it has selected 3M as the manufacturer to bring to market its Electronic Paper, a digital document display with the portability of a plain sheet of paper.
Developed at the Xerox Palo Alto Research Center (PARC), electronic paper represents a new kind of display, falling somewhere between the centuries old technology of paper and a conventional computer screen. Like paper, it is user friendly, thin, lightweight and flexible. But like a computer display, it is also dynamic and rewritable. This combination of properties makes it suitable for a wide range of potential applications, including:
Electronic paper newspapers offering breaking news, incoming sports scores, and up to the minute stock quotes, even as the paper is being read.
Electronic paper magazines that continually update with breaking information and make use of animated images or moving pictures to bring stories to life.
Electronic paper textbooks, which could amalgamate a number o…

Holographic Storage Technologies

The theory of holography was developed by Dennis Gabor, a Hungarian physicist, in the year 1947. His theory was originally intended to increase the resolving power of electron microscopes. Gabor proved his theory not with an electron beam, but with a light beam. The result was the first hologram ever made. The early holograms were legible but plagued with many imperfections because Gabor did not have the correct light to make crisp clear holograms as we can today . Gabor needed laser Light. In the 1960s two engineers from the University of Michigan: Emmett Leith and Juris Upatnieks, developed a new device which produced a three dimensional image of an object. Building on the discoveries of Gabor, they produced the diffuse light hologram. Today, we can see holograms, or 3D images, on credit cards, magazine covers and in art galleries. Yet this unique method of capturing information with lasers has many more applications in the industrial world and is on the verge of revolutionising dat…