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70 Comments
- TheMachine1, on 03/30/2009, -4/+44Dude thats a lot of weed.
- Wargala, on 03/30/2009, -0/+31Well I think so Brain, but where are we going to find rubber pants our size?
- GiJoeBob, on 03/30/2009, -1/+31It doesn't count until I can go to Lowe's and buy one for myself.
- inactive, on 03/30/2009, -0/+21And, amazingly, it sounds a lot like a 12 year old girl's slumber party.
- Ratteler, on 03/30/2009, -0/+18How much are they. I need about 5 in every room.
- tacotomato, on 03/30/2009, -4/+17You know, I'm totally for efficient lightbulbs. I always wonder if they cause more pollution/cost more energy to make than they save. I'm actually curious if anyone knows.
- footbag01, on 03/30/2009, -0/+10Grow ops?
- inactive, on 03/30/2009, -0/+8The heat loss from incandescents should, in fact, leave your hands quite warm.
- skintigh, on 03/30/2009, -1/+9Given that bulbs will use like $100 of electricity in their lifetime, and given that bulbs do not cost $100, and given a CFL will save 75% over an incandescent bulb, I think it's safe to say they do not require more energy to make than they save.
Same thing goes for solar panels which cynics love to claim take more power to make than they generate. I ran the numbers once, and if that were the case every solar panel factory would require it's own Hoover Dam or numerous coal plants to power it.
PS: I dugg you up because lots of other people wonder the same thing and should get an answer - LiquidIse, on 03/30/2009, -2/+9You know, I saw Knowing last night. And that movie was great.
- thijzer, on 03/30/2009, -0/+6small sized, energy efficient projector, ahumm...
- KIERANMULLEN, on 03/30/2009, -0/+5Great, CNET video from 1 year ago. Excellent reporting.
- R33E8, on 03/30/2009, -0/+5Sorry.. Current high end LEDs have hit 150lm/w and very easily available 120lm/W... This is old anyways...
- B13ND3D, on 03/30/2009, -0/+4This sounds very similar to Metal Halide lamps ( http://en.wikipedia.org/wiki/Metal_halide_lamp ) except they use RF energy instead of an electric arc.
For anyone who wants to buy one, a modern MH lamp can achieve +70 lumens per watt with a lifetime of 12,000 hours while only setting you back $150. - majortom1981, on 03/30/2009, -3/+7I think he was talking about the color temperature.
- evil-doer, on 03/30/2009, -1/+5so these things burn as hot as the surface of the sun... why doesnt the glass melt?
- tacotomato, on 03/30/2009, -0/+3Skintigh - thanks for the response! And Jasdf, I didn't see the other article. I think it's a common question and it seems like the more people who know about the benefits the better.
- SgtSeaCow, on 03/30/2009, -1/+4Uhm, 6,000 KAL?! "Surface of the sun?" I don't think the shielding in my current fixtures is rated for that.
- RadiatedAnt, on 03/30/2009, -3/+6a million starwars geeks just cried out in joy
- Necho, on 03/30/2009, -1/+4"metal halides completely join the gas plasma, emitting a powerful white light"
what does it mean "join;" like, react? After they "join" are they again separated - i.e. How long do ones of these bulbs last? - inactive, on 03/30/2009, -2/+4It can also go OJ Simpson on your wallet, check book and bank account.
- jpowell180, on 04/01/2009, -0/+2Sometime that's the only heat some people have.
You should remember that before you declere the heat waste energy. - whiskeythief, on 03/30/2009, -0/+2That the article is a year old?
- DesertTripper, on 03/30/2009, -0/+2I just wonder if they'll be able to confine the massive amount of RF energy in a way that it won't interfere with radio reception and other stuff.
Other than that, sounds really cool... another spin on an 1890s-era Nikky Tesla innovation! - roboto212, on 03/30/2009, -0/+2i have no idea how this comment got posted under another article????
- synapsis9, on 03/30/2009, -10/+12But the question remains: do they stop Nicholas Cage's rampage on ruining everyones daily life?
- Grueslayer, on 03/30/2009, -1/+3Looks like they're almost ready for the masses. All they need is small device to screw into the standard light fixture and we're closer to a better brighter future.
- Schwa142, on 03/30/2009, -0/+2CFL's are considered hazardous waste and are illegal to put in the normal trash in many states. Today's LED's produce a much better light, but the cost is still a little high.
I think CFL's will be considered the DDT of our generation. - Danltn, on 03/30/2009, -0/+2And what size heatsink does this need?
- Jektal, on 03/30/2009, -1/+3Sure... You have "no idea" how you posted this in the wrong comments... Uh huh...
- farkfarkfark, on 03/30/2009, -0/+270 lumens per watt for "current high-end" LEDs? I think not. Google "LED lumens per watt" and see what you get. 130 if you're too lazy to dig deeper.
- geekwithsoul, on 03/30/2009, -0/+2RTFA -- 20,000 hours
- ptoomey, on 03/30/2009, -0/+2I would guess that the only place where it's 6000K is at the very center of the container and that the magnetic field which is creating the intense heat is also by its nature creating an inward pressure keeping the plasma from touching the glass. Magnetic containment in a small package.
- Fustigations, on 03/30/2009, -0/+2The metal halide light is not a new technology. It's used all over the place in auditoriums, gymnasiums and stadiums. Anywhere that has a large open space to light and you need to retain good lighting color. The ballast (RF generator) to power this sucker is kind of complex (Ie expensive), and will probably cost more than is profitable for a normal indoor lamp (at this point), and will cause RF noise if improperly (Ie cheaply) shielded. Far more interesting to me was the nanocrystal coated LED linked in the article that would produce from 3 to 6 times the light of a normal white LED with realistic manufacturing goals that could actually produce a LED bulb worthy of replacing CFL's lumen per lumen. I'm looking forward to that one!
- StormTroopr, on 03/31/2009, -0/+1With the lumens per watt being directly related to efficiency it shouldn't generate much more heat than a current high end LED if being powered by the same amount of wattage.
- S1ngular1ty1, on 03/31/2009, -0/+1Their patent says the bulb is a bulb within a bulb with a vacuum between the two chambers to limit heat transfer. Their patent also says the bulb can approach 700 deg C to 1000 deg C during operation on the exterior which means you will need a serious heat sink to operate this bulb.
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PT ... - TheOneTrueGod, on 03/31/2009, -0/+1The long overdue revival of the sulfur-argon-lamp.
- SaxmanTrav, on 03/30/2009, -0/+120000 hours, according to the article, which is, if I recall correctly, about 10-20 times more than the average incandescent bulbs
- inactive, on 03/31/2009, -0/+1Actually if you watch the video, that IS the temperature
However, heat isn't an issue with this design so that's an irrelevant point - S1ngular1ty1, on 03/31/2009, -0/+1He said the inside of the bulb was at a temperature of 6000K. Since there isn't a phosphor coating on the glass this must be true for it to produce a light with a color temperature of 6000k. There must be a magnetic field keeping the plasma from the glass, or the RF is modulated in such a way to keep the glass from overheating otherwise the glass would melt. Almost no material can withstand 6000K.
- DrDabbles, on 04/01/2009, -0/+1None of you did any research into the actual product. If you go to their website, they CLEARLY state this is not for the home or the low-wattage lighting arena. They are specifically targeting street lights and industrial lighting applications.
While they believe it COULD be possible to make this sort of technology for low-wattage lighting in the home, they note that metal halide lighting is already a better solution. So, while on the surface it may kick LED butt, the reality is that LED technology is still more versatile. And there is probably NOT going to be a one-technology-fits-all-applications bulb coming out. - DrDabbles, on 04/01/2009, -0/+1Currently, street lamp bulbs and projector bulbs get hot enough to literally melt the skin right off your body. The bulb temp doesn't really denote the need for a heatsink, since a sink is used to cool the electronic components.
- whiskeythief, on 03/30/2009, -0/+1Since the bulbs are still too expensive for widespread use, a micro projector is an excellent application. Several companies are selling pocket sized portable projectors that can be used to display pictures, video, and presentations on any surface anywhere. With a brighter, lower power bulb, these will improve. The tiny projectors are relatively cheap and smaller than a pack of cigarettes.
Useless really, but I want one. - Elliuotatar, on 03/30/2009, -0/+1If they're energy efficient, then they're probably not spewing RF all over the place.
- DrDabbles, on 04/01/2009, -0/+1The website talks about integration with streetlamps, and notes that part of the assembly comes with its own heatsink. They also note the bulb is fit for applications between -40 to +45C. Mind you, these are street lamp bulbs, not replacements for your CFLs at home.
- whiskeythief, on 03/30/2009, -0/+1Well, the article is a year old and nothing in the stores yet.
- LonelyTylenoL, on 03/31/2009, -0/+1Thank you science!
- b8man99, on 03/30/2009, -1/+2That's the frequency of the light - not the temp. Normal CFLs are 6000 if you want a white light.
- whiskeythief, on 03/31/2009, -0/+1I wouldn't call it a massive amount of RF energy since the whole point of the bulb is low power. Its the same RF that's used for metal halide lights today.
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