Saturday, December 29, 2007

The Holographic TV Blows HDTV Out of the Water


Can you feel it? Holographic technology is heating up. First came the Optware 30GB holographic storage card, that I think will kill off other storage mediums once the drives can get down to an affordable price point.

But today we’re stepping into the future with a look at the Holographic TV.


Popular Science

Even if you had free run of any skybox in Madison Square Garden, you still wouldn’t see half the action that you will in your own living room, one day soon, on a large-screen holographic television. Without ever leaving your chair, you’ll be poised to watch each play unfold from whatever perspective you choose, gazing into the depths of your TV. The only thing lacking will be the soggy cheese fries.

Although this scenario is a decade away, a small-scale version exists today in the Dallas laboratory of Harold Garner, a tireless 51-year-old medical doctor, plasma physicist and biochemist at the University of Texas Southwestern Medical Center. The prototype he built is the first machine ever to generate holographic movies—true 3-D without special glasses or nausea.

How did a guy who works in a medical center discover the key to depicting holographic objects in motion? Garner’s chair in developmental biology at UT is endowed in part by the founders of Texas Instruments, and the company gave him early access to a digital micromirror device (DMD) that is now used in high-end video projectors. It is made up of nearly a million reflective panels, each of which can be angled by a computer several thousand times per second to reflect or deflect beams of light, producing moving pictures. Garner’s big idea was to blast the DMD with a laser rather than with a typical projection bulb. He programmed the DMD to reflect a sequence of 2-D interference patterns (called interferograms) that disrupt the laser light in such a way that it reflects a 3-D hologram.

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