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The Never-Ending Light Bulb!


Ah ah aaah ah ah aahhh...*ahem*...sorry...this kind of  stuff gets me excited.

Ceravision has just announced that they have developed a lightbulb that is 50% efficient (more than twice the efficiency of CFLs) and will last...um...forever?

No, that can't be right, but a very very long time anyhow. They say they expect their new lamp to outlast whatever device they put it in, so apparently your lamp will break before the bulb does.

The device doesn't use any fascinating new technology, which is really good news as it can be built from parts already in mass production. It's a new sort of metal halide lamp (a tube of gas inside a lump of a metal oxide.) When the lamp is put in the presence of a microwave emitter (just like the good choice buy real levitra online one in your kitchen, but much smaller) a concentrated electric field forms in the tube of gas which promptly turns into plasma. More than 50% of the energy is emitted as light, which is 2x more than ordinary metal halide lamps, and four times more than ordinary fluorescents.

The device is so long lived because there is no connection between the electricity source and online propecia prescriptions the bulb itself. As long as the microwave emitter keeps emitting, and the glass tube never breaks, the device will last forever.
This new, as-yet-unnamed sort of lamp will be somewhat expensive in the beginning. And it will likely not produce the highest-quality light until it gets a good deal of wow it's great non generic levitra tweaking. But if you were wondering what kind of point-light could possibly be better than LEDs, this is it.

No toxics, unsurpassed efficiency, extremely bright, relatively small and ultra-long lived. I'm pretty excited about this one.

Via The Economist

See also:
-One Watt Light Bulbs-
-Quick OLED Review-
-EcoGeek Newsletter-
Hits: 57611
Comments (28)Add Comment
0
compatibility
written by kballs, June 21, 2007
The problem I see with these (as well as many LED, OLED, etc. lighting) is that it will probably never be built to screw into a regular light socket, but rather you need all new light fixtures of exotic design. This just adds to the consumer cost of using this type of new lighting... you have to buy new fixtures and install them, which for a whole house could cost thousands of dollars above and beyond the cialis buying cost of the "light bulbs" themselves. Building new homes with exotic lighting in mind would work nicely, but retrofitting a house would never even come close to paying off in electricity savings unless the cost of kwh goes up by 10x (well maybe I'm biased because we have hydroelectic where I live - I've done the same calculations for solar panels and I would have to live in my house for 80+ years just to break even).
0
No toxics?
written by Tarandon, June 21, 2007
Am I the only one worried about an invisible field of microwaves in my house? Wouldn't mass adoption of online ordering levitra this technology turn our houses into ovens? Please correct me if i'm wrong.
0
micro-worries
written by Xalem, June 21, 2007
Microwaves are photons like light. And, like light, there are materials they will not pass through. The walls (and even the honeycomb door) of a microwave are enough to keep the microwaves in. The only worry is if the casing for the lamp is cracked. And I can see it even being possible to http://grefa.org/brand-name-levitra draw a trace wire over the http://robert-alonso-photos.com/order-generic-cialis surface of the casing, such that any crack breaks the trace wire and shuts down the device permanently.
0
Compatibility
written by Hank, June 22, 2007
Sure, the prototypes won't be designed with edison-type jacks, but I guarantee you they'll figure out a way to fit this into a regular light socket just like they did with CFLs and are doing with LEDs.
0
Not So Sure
written by Rollbiz, June 22, 2007
All current HID lamps, including metal halides, do contain mercury. Unless there's something fundamentally different within the lamp, this will contain toxins.
0
Something different
written by Hank, June 22, 2007
There is indeed something different. The metal used in the lamp is aluminum oxide and the manufacturers are saying that they won't need to have gaseous Hg in the mix. So...great news!
0
even if there's mercury, not so bad
written by killjoy, June 22, 2007
even if it contains trace amounts of mercury (such as the ultra micro levels some of the more conscious light manufacturers have achieved as of late) i wouldn't greatly worry about the naturally occuring metal showing up too much, could probably do up the entire house with the current ultra low mercury content bulbs and canadian cialis uk still not meet half of what is in most of our home's thermostats!

even so.. excited to see another light on the http://www.shoreacres.net/best-way-to-take-viagra forefront, and cant wait to see it hit market and price cut!
0
How hot?
written by Tola, June 22, 2007
It just seems to me that turning a solid metal into a plasma gas has got to be hot.
0
...
written by Don Brennecke, June 22, 2007
I have 24 CFLs which I replaced nearly 3-months ago -- only one just failed -- it was a freebie, provided by Light of cheap canadian pharmacy America at a town hall meeting intended to www.spotfodo.com encourage switching. All the others still work fine, and the one that burned out was one of 8 placed in recessed covers on a ceiling fan. I suspect it was a dud, and will not hold it against Lights of America -- especially since it provided nearly 3 months of illumination for no material cost to me. Encourage switching . . . but push for a central disposal site for those that will eventually fail. THEY HAVE MERCURY IN THEM, so they shouldn't go to the dump.
0
Will this work with my ipod?
written by Ty, June 22, 2007
If I go fast enough down a hill on my bike, do you think this will allow me to travel back in time? Or even better explode into fiery plasma?
0
...
written by girl, June 22, 2007
microwave emitters in my bedroom? no thanks. :-
0
dimmers
written by John M, June 22, 2007
I want lights that I can dim. We don't all need to save electricity. We need to make better choices in who we elect. There is no good reason we all don't have unlimited, pollution(nearly) free electricity..
0
LEDs in standard sockets
written by miguel, June 22, 2007
kballs writes: "The problem I see with these (as well as many LED, OLED, etc. lighting) is that it will probably never be built to screw into a regular light socket, but rather you need all new light fixtures of exotic design."

I was just in Seoul, where little electrical shops are all selling screw-in LED lamps that not only fit in normal sockets, but unlike CFCs, they also don't stick out farther than old-fashioned bulbs. The light was nice and strong, and interestingly enough, they were a whole lot cheaper than I've seen incandescent-replacement LED bulbs in the US or Europe - like 1/4 of the price. So the future is looking bright.
0
Some inside information
written by Mark, June 22, 2007
Well, some outdated inside information. I used to work for Ceravision back when they started developing this idea about 5 years ago, but left shortly after.

The light output was incredibly bright, and the idea at the time was to target automotive companies to use it as a single light source for a car, with the light being redistributed via fibre-optics to only here cheap cialis india wherever it was needed, from the headlights to the dashboard.

Their plans may well have changed, but the basic idea and structure still looks the same as it did back then, so I would guess that they're still looking to use it in systems where the light would be distributed from just a small number of sources.
0
efficiency
written by Richard, June 22, 2007
I think you're being misled on the efficiency of these devices - is that in terms of watts of electricity in compared to watts of light out, or are you saying that the panaceahealthsolutions.com metal-halide is 50% efficient at converting microwaves to light, with an extra unspecified loss going from electricity to microwaves?
0
Sulfur plasma lighting - video
written by frogg, June 22, 2007
Sulphur plasma lighting uses a microwave magnetron - my guess is that this is the same thing as what is described in the article above - You can see one in action here:
http://www.youtube.com/watch?v=BLI9usuBKxo

Naturally, this technology is getting horticulturalists all excited too!

I have heard that 'the lighting companies' envisage the use one lamp per household with fibre-optics to deliver light to each room -- a natural progression from what Mark describes Ceravision wanting to propecia mexico do in the automotive industry.

But it's a long way from how my house is wired!
0
re: efficiency
written by frogg, June 22, 2007
"[...] traditional lightbulbs emit just 5% of their power as light, and fluorescent tubes about 15%, the Ceravision lamp has an efficiency greater than 50%."

Taken from the article linked @ The Economist - hth?
0
Could be better...
written by Tesla, June 23, 2007
yawn... I'd rather see wireless power.
0
...
written by jim, June 24, 2007
What is really new? This is looks like more of levitra in australia for sale the same, read about every day. Claims & Hype to the power of 10. All I see is just another, over the top, "new + improved" solution. Hawked by unemployed used car and snake oil salesmen. Don't hold your breath waiting for this to show up at Home Depot. Mr. P. T. Barnum Said it 100 years ago "there's a sucker born every minute". Except today it's every 15 seconds. To quote the article "Ah ah aaah ah ah aahhh...*ahem*...sorry...this kind of stuff gets me excited", (not) Yes people, Salvation is upon us. I'm not makeing the rain, forecasting it.
0
Expect total system efficiency to be muc
written by Mike33, June 24, 2007
RE LEDs:

Only problem with LEDs in regular sockets is that unlike fluorescent or incandescent, LEDs are very sensitive to heat buildup. Any LED system highly powered enough to be a suitable light-bulb replacement would probably cook itself in a typical light fixture. Where LEDs make the most sense is not in screw-in light bulbs (I believe CFLs will remain a better solution -- they will continue to improve in size, color, and efficiency), but as replacements for halogen track-light bulbs, as LEDs can be focused, fluorescents can't.

One problem with the microwave-based light sources that have been tried in the past is that they don't scale down well. To be efficient and economical, they require one extremely bright central point-source, with the light distributed through a series of large optical pipes to diffuse the light from a single lamp across a whole building.

The problem is that the complicated fixture to do all that is usually quite inefficient. Also, it creates a single point of failure -- which is why I would never, ever want such a system in a car.

If you compare total system efficiency -- electricity in, to light coming out of the fixture,

Also, when these guys say their system is four times as efficient as fluorescent, they are probably talking bargain basement CFLs, or obsolete magnetic ballast systems. The best linear fluorescents, with eletronic ballasts, exceed metal halide for efficiency, and especially in ability to maintain their initial brightness.

(firstly, percentage efficiency is meaningless in lighting -- what matters is lumen output, which is specifically weighted for huamn eye response)

it is not fair to compare a cutting edge system like this to bargain-basement CFLs sold in homes. I would like to see a comparison between total system efficiency (including microwave losses, and lamp fixture losses) between

. Facilities that have used them have typically installed light pipes to the distribute the buy tramadol online canadian mall light around. The problem is, the process of doing this is lossy, losing quite a large amount of light.

Also, even if the lamp can last forever, the microwave emitter likely cannot, and will probably fail more often than the best commercial HID/fluorescent lamps used today.



Also, when the original article insinuates that metal halide is twice as efficient as fluorescent, that's not true at all. Counting ballast losses, the two are about the same. Also, the newest fluorescents with proper electronic ballasts can maintain their initial brightness better than metal halide, as well.
0
Could a moderator remove my last comment
written by Mike33, June 24, 2007
sorry about that, I accidentally hit the add comment button before I was ready, and have no way to edit.
0
wow
written by Free Nature Photography Wallpaper, June 25, 2007
wow, talk about saving money in the long run... I bet this one bulb will cost 100 dollars or something, but I guess if you never have to replace one, why not! Would be great to use this type of technology for outerspace!
0
nice website
written by idi blud, January 22, 2008
nice web site how do you get all this information
0
hi
written by levi, February 27, 2008
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0
...
written by Mark, April 22, 2008
you can buy many types of only best offers generic cialis next day delivery LED light bulbs now, uses the same base as old light bulbs, no mercury, just still a little expensive but coming down quickly.
0
Efficacy, reliability in question
written by spuffler, October 03, 2012
From my experiences with CFLs, I would expect the NEL to suffer problems creating illumination in unheated lamp fixtures (outdoor lamp posts, unheated garage, outbuildings, exterior lighting fixtures for stairs, lights for decks, floodlights). I would also expect that operating these in NELs in existing fixtures will lead to overheated oscillator electronics, just as CFLs cannot be installed with the base above the tube. From my experience with early and low cost LED lamps, I would expect NEL lighting to be poorly diffused, radiation angles to be narrow, and of course, short lived for the first 3 or more design iterations.

Lastly, the Microwave radiation from many illuminated (operating) NELs in a house will positively disrupt Cellphones and pharmacy canada viagra WiFi routers, those which are in my house, and likely also will my NELs disrupt my neighbors devices. And his NELs will disrupt my devices.

As I am a savvy consumer, I ask for all aspects of the candidate lamp to match all aspects of the current incandescent lamp. Do not accept half baked solutions which cannot be engineered into partial relevance.smilies/grin.gif
0
Interesting.
written by Kirsten @ Green Global Travel, January 20, 2014
Interesting article.. I wonder how well the cialis cost lightbulb would work as far as providing a good amount of light. Are there any health concerns?
0
That's one of the dumbest things I've ever heard.
written by MRB, April 28, 2014
You tout how efficient this light is. Wow, it's 50% efficient! Incredible. But you missed the whole point. What's going to generate the microwaves that power this light? How efficient is microwave generation? You would be powering a microwave with electricity which would then power the light. In doing so you add another whole layer of inefficiency, thus defeating the purpose: a power efficient light. By the way, common kitchen microwaves are less than 50% efficient, thus cutting the efficiency of your light in half. Now you're down to a 25% efficient light, and you haven't even discussed the dangers of firing microwaves around at all of these lights. The whole idea is preposterous.

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