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High efficiency flat light source could be the end for the light bulb
Gizmag ^ | 4/19/2006 | Staff

Posted on 04/19/2006 10:57:35 AM PDT by Neville72

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1 posted on 04/19/2006 10:57:38 AM PDT by Neville72
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To: Neville72

WOW!!!!!!


2 posted on 04/19/2006 10:59:52 AM PDT by joe fonebone (When did being white, christian and conservative become a criminal offense?)
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To: Neville72

> 100 percent efficiency

Errrrrr.....


3 posted on 04/19/2006 11:00:59 AM PDT by orionblamblam (I'm interested in science and preventing its corruption, so here I am.)
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To: Neville72
According to Forrest, the device eventually could achieve three times the efficiency of standard incandescent light bulbs.

Oooo, all the way up to match fluorescent.

4 posted on 04/19/2006 11:04:14 AM PDT by Professional Engineer (On May 5th, in the United States, nothing happened.)
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To: Neville72

I blame Bush...


5 posted on 04/19/2006 11:04:14 AM PDT by talleyman (Kerry & the Surrender-Donkey Treasoncrats - trashing the troops for 40 years.)
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To: Neville72
"This process will enable us to get 100 percent efficiency out of a single, broad spectrum light source," Thompson said.

Uh huh...

6 posted on 04/19/2006 11:06:22 AM PDT by null and void (Pay no attention to the imam behind the curtain...)
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To: Neville72
"This process will enable us to get 100 percent efficiency out of a single, broad spectrum light source,"

[...]

According to Forrest, the device eventually could achieve three times the efficiency of standard incandescent light bulbs.

There's a pretty big gap between those two statements. Further, they aren't even talking about a broad spectrum source, but rather a multi-frequency source that matches up to our optical pigments (though assuming no hidden side-effects, that's better for common usage).

7 posted on 04/19/2006 11:09:21 AM PDT by lepton ("It is useless to attempt to reason a man out of a thing he was never reasoned into"--Jonathan Swift)
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To: Neville72
There are actually hermetic plastics but they wouldn't be transparent and they aren't all plastic. For example, metalized Mylar or a form of polyethylene is hermetic. It is used extensively in snack food packaging. Other plastics can be metalized as well. There are coatings so very thin that pass some wavelengths of light and appear transparent (sunglass mirrors). I don't think it is a stopper from what I know of the problem.
8 posted on 04/19/2006 11:09:27 AM PDT by Final Authority
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To: orionblamblam
Errrrrr.....

yeah yeah...
Picky picky picky...

9 posted on 04/19/2006 11:09:41 AM PDT by Publius6961 (Multiculturalism is the white flag of a dying country)
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To: Professional Engineer

It might be better than fluorescent if it's flat instead of curved or bulbous or whatever. A not-insignificant portion of the light coming out of the standard bulb is going back into the fixture. In fluorescents, you undoubtedly lose some of that light that comes out of one side of the curly-cue and goes across the middle to the other side. I wonder if that's already part of their calculations -- "loss due to geometrically-related absorption and diffusion" or somesuch.


10 posted on 04/19/2006 11:11:42 AM PDT by jiggyboy (Ten percent of poll respondents are either lying or insane)
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To: Neville72

ping


11 posted on 04/19/2006 11:11:57 AM PDT by Fred911 (YOU GET WHAT YOU ACCEPT)
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To: orionblamblam
100 percent efficiency

The only real problem is the massive amount of neutrinos generated as the entire light fixture turns into pure radiant energy, but they plan to fix that too, as soon as they scrape the outlines of the R&D researchers off the wall of the test lab...

12 posted on 04/19/2006 11:13:53 AM PDT by 50sDad (ST3d: Real Star Trek 3d Chess: http://my.ohio.voyager.net/~abartmes/tactical.htm)
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To: Neville72

There has always been cool new stuff. This might be more of it.


13 posted on 04/19/2006 11:14:12 AM PDT by Protagoras (The world is full of successful idiots and genius failures.)
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To: null and void
100 percent efficiency and only 3 times a efficient as an incandescent light bulb. Yeah right it's not adding up. It should be way more efficient than that given the heat the incandescent light bulb makes.
14 posted on 04/19/2006 11:16:22 AM PDT by reagandemo (The battle is near are you ready for the sacrifice?)
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To: jiggyboy
There is a product called LightStrip that is used in spacecraft modeling...ever make one of those Starship Enterprise models, and you couldn't get an even glow across the nacelles? Lightstrip is a phosphor-covered plastic sheet with electrodes at each end; you have a transformer that takes your 5VDC up to thousands of volts at VERY low amperage, and the entire sheet glows. You can cut it, twist it, shape it...

If they can make this work, THINK of the cool nerd applications! Fridges with controls like the Enterprise! My mind boggles at the cool possibilities!!!!

15 posted on 04/19/2006 11:17:06 AM PDT by 50sDad (ST3d: Real Star Trek 3d Chess: http://my.ohio.voyager.net/~abartmes/tactical.htm)
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100% efficient... the problem is that if there is a flaw in the factory and you get even a 101% efficient one....

it will get brighter and brighter and you wont be able to turn it off...AND THE WHOLE WORLD WILL BE LIT UP FOREVER!!!


16 posted on 04/19/2006 11:18:11 AM PDT by KneelBeforeZod (I have five dollars for each of you)
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To: null and void

I imagine that in context this means that all the energy supplied to the LED is emitted as visible light, lacking the large IR component of incadescent and ultraviolet bulbs.


17 posted on 04/19/2006 11:20:40 AM PDT by leoncaruthers
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To: orionblamblam
Errrrrr.....

Caught my eye, too.... Perhaps he didn't mean that in the fully technical sense of the term, but rather a more "squeeze as many photons out of the thing as we can" sort of way?

18 posted on 04/19/2006 11:21:11 AM PDT by r9etb
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To: Neville72; orionblamblam

I expect that statement is probably a misquote by the journo- the engineer probably said something along the lines of "close to 100%", which is feasible with electical devices.


19 posted on 04/19/2006 11:21:53 AM PDT by Squawk 8888 (Yay! It's Riding Season!)
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To: Neville72
"The Nature paper presents a quantum mechanical trick that solves this problem."

So how will we know if the light is on or off? Will we have to keep a supply of cats around to tell?
20 posted on 04/19/2006 11:23:38 AM PDT by USFRIENDINVICTORIA
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