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DavidDvorkin Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Mar-09-10 03:52 PM
Original message
Using a room's lights for wireless broadband
http://www.eurekalert.org/pub_releases/2010-03/osoa-ftd030910.php

In the future, getting a broadband connection might be as simple as flipping on a light switch. In fact, according to a group of researchers from Germany, the light coming from the lamps in your home could one day encode a wireless broadband signal.
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Dont_Bogart_the_Pretzel Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Mar-09-10 03:59 PM
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1. " No one would be bothered by this" I wonder if this was tested with dogs or cats in the room?
The signal would be generated in a room by slightly flickering all the lights in unison. No one would be bothered by this because the rate of modulation would be millions of times faster than a human eye can see. Since visible light can't go through walls like radio, there would be no unwanted interference from stray signals and less worry of outside hackers.
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DavidDvorkin Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Mar-09-10 04:31 PM
Response to Reply #1
3. Interesting question.
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jdlh8894 Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Mar-09-10 04:00 PM
Response to Original message
2. But do you
have to use incandescence bulbs?:evilgrin:
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DavidDvorkin Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Mar-09-10 04:32 PM
Response to Reply #2
4. It only works with LED lights
according to the article. Neither incandescents nor flourescents will work.
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hunter Donating Member (1000+ posts) Send PM | Profile | Ignore Wed Mar-10-10 01:19 PM
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5. Optical wireless is going to be a very big deal.
Especially in places like airport lobbies and libraries with large volumes of wireless internet traffic.
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DavidDvorkin Donating Member (1000+ posts) Send PM | Profile | Ignore Wed Mar-10-10 09:06 PM
Response to Reply #5
6. If streetlights could be adapted to do this
Instant broadband all over the place.
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