Hologram TV Technology
Television (TV) technology constantly evolved throughout the 20th century, but today we are on the verge of a new era in home entertainment. The era of holographic television is perhaps only several years away, but these 3-D devices may not be affordable for a little longer than that.
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Holography History
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The original form of holography was discovered in 1947 by a Hungarian physicist named Dennis Gabor, who invented the technique for electron microscope applications on electron waves. Modern holography uses this technique on light waves instead to form 3-D images, but this was possible only after the discovery of the laser in 1960.
Theory
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The object to be recorded is illuminated by two laser beams at different angles that cause an interference pattern, and a high-resolution photographic plate is exposed to the interference pattern. When that holographic image is later hit with the same laser beam that recorded the image, a 3-D image of the object recorded is reproduced.
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Cheoptics360
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A Danish team of engineers and designers created the Cheoptics360, which is a pyramidal holographic display that recreates video and computer images both indoors and outdoors. The images are created using a system of mirrors within the pyramid.
Claro Holographic TV
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The Claro holographic TV utilizes a new form of holographic film over the transparent screen to create very sharp images even in bright light. The Claro actually has a projector about 5 feet behind it. So it has small parts but takes up a lot of space.
Actuality Systems Perspecta
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Actuality Systems Inc.'s Perspecta holographic display looks somewhat like a crystal ball and displays incredibly detailed images used for pharmaceutical and medical imaging. Goggles are not needed, and the eight-color image can be seen perfectly from any angle.
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