Finally 300 Lumen Per Watt !!

[PhantomPhoton]

Sounds great but it may be longer than we'd like. I don't think there are any large scale commercial nanotube production methods yet (hopefully I'm wrong here).
But yes this could be the next step in white LEDs which is an exciting prospect if they are both more efficient and can start to solve the CRI/ depth perception drawbacks of phosphor LEDs.

 

[Patriot]

+

Combine the 300lm/W with this technology...

http://www.physorg.com/news117212815.html

Nanofest!!!.

Yeah no kidding! It's amazing were this stuff is going.

I am looking forward to the measly little R4 bins soon though. Can't wait to get my paws on one.

 

[LumenHound]

Finally 300 lumen per watt?? What year will this be? :tinfoil:

Maybe they will be called K3's ?

It will be nice when something like this is actually available at reasonable retail prices but until that time...:sleepy::sleepy:

 

[monkeyboy]

Finally 300 lumen per watt?? What year will this be? :tinfoil:

I think I'll just have to forget about it completely until a commercially available product is released then act all surprised

. Much like a certain flashlight (with 4 leds) I ordered a year ago and haven't received yet, but that's another story...

 

[cv3po]

Wow!

I'm 30-ish and actually remember seeing my first white led.......new stuff at the time. Now we're talking nano!

At the rate we're going it won't be long before we are all carrying keychain sized lights, powered by nano nuclear cells that never need replacement or charging, with variable output from .01 lumen to say 500 or 1000 lumens. Holy cats!!

 

[WadeF]

I'm almost embarassed to turn on some of my LED lights not that are doing around 200 lumens. They are so bright compared to what people are used to my neighbors are probably like "WHAT IS THAT!? There a UFO out there?"

Now if I'm blasting some 1,000+ lumen LED light in a few years... I guess they'll just think I'm turning on my backyard flood lights.

 

[TorchBoy]

Commercial white LEDs only provide about 30 lumens per watt ...

:huh2:

 

[Lightmax]

Now if I'm blasting some 1,000+ lumen LED light in a few years... I guess they'll just think I'm turning on my backyard flood lights.

Nope, something more like a landing light off a 747 ! :thumbsup:


Lightmax

 

[2xTrinity]

One thing to consider with this LED is they didn't mention the actual max wattage. It might get 300 lm/w , but what if this is only when being driven at 25 mA ???

20 lumens for 20+ hours on an alkaline AAA?

 

[jchoo]

Wow!

I'm 30-ish and actually remember seeing my first white led.......new stuff at the time. Now we're talking nano!

At the rate we're going it won't be long before we are all carrying keychain sized lights, powered by nano nuclear cells that never need replacement or charging, with variable output from .01 lumen to say 500 or 1000 lumens. Holy cats!!

Great for all those Gandalf moments.

"Let me risk a little more light..."
:huh:

 

[BassClefJeff84]

300 l/w means we could have 1000 lumen single cell torches soon:naughty:

yes....:naughty::naughty::naughty::naughty:

 

[FrontRanger]

Sounds great but it may be longer than we'd like. I don't think there are any large scale commercial nanotube production methods yet (hopefully I'm wrong here).

I think PhantomPhoton is right. There is presently large-scale manufacturing of products with nanoparticles, such as the TiO2 particles in many sunblocks, but there doesn't seem to be mass production of anything using nanotubes. They're simply hard to produce with accuracy at low enough costs to enable most applications. Case in point: I recently read an article about a company called Nantero that has plans to take over the flash memory market with their nanotube-based nonvolatile memory. They say that their products will be ready for market in two years. Trouble is, they've been saying that since 2002, and they still say it in 2008...

With that said, when I see a 300 lm/W @ 3W LED for ~$10 on DX or KD, I'll be one happily-convinced skeptic.

 

[tsask]

+

Combine the 300lm/W with this technology...

http://www.physorg.com/news117212815.html

Nanofest!!!.

wow ! thanks!!! great info!!!

 

[Jarl]

There is presently large-scale manufacturing of products with nanoparticles, such as the TiO2 particles in many sunblocks, but there doesn't seem to be mass production of anything using nanotubes.

http://www.eastonbike.com/PRODUCTS/BARS/08/bar_rise_ml_sl_'08.html

"...carbon nanotubes are added to strengthen..."


I don't think it's that far fetched. Give it 5 years, when they can make enough nanotubes and combine them with the latest emitters (which will probably be doing 250 lumens/watt in 5 years anyway) and we should be seeing 400+.

 

[FrontRanger]

Fair enough. I guess should have worded my previous post more carefully: There doesn't seem to be any mass production of nanotubes that requires precision control. (And maybe this LED applicaton of nanocrystals does not require precise control, which would be great news for us.) At any rate, large sums of money are poured into a number of research centers worldwide to work on this, implying that it's not what manufacturing engineers consider "a solved problem."

 

[TorchBoy]

Give it 5 years, when they can make enough nanotubes and combine them with the latest emitters (which will probably be doing 250 lumens/watt in 5 years anyway) and we should be seeing 400+.

Then we wouldn't see any improvement by adding the carbon nanotubes.

 

[Gunner12]

I'm surprised no one has brought this up yet. Isn't the theoretical limit for white light(full spectrum) 242.5 lumen per watt? The theoretical limit for visible light is 683 lumen per watt at 555 nm(green).

Of course, it would be different depending on how much of the spectrum included.

 

[TorchBoy]

Yes, but to make a warm white (as was mentioned) they can drop the blue a bit and put it into green (and red) which would give more lumens. The more green the more lumens/watt they'd get.

 

[LedLad]

One thing to remember or think about when talking about the lack of large-scale production of nanotubes is the fact that you aren't trying to make something very large (say a bicycle frame) entirely out of a nanotube composite. The relative amount of nanotubes needed to 'coat' a tiny LED phosphor would be miniscule and a small lab quality set-up for nanotube production could probably realistically produce the amount needed for substantially large runs of the new LEDs to be produced. Probably .

 

[Fallingwater]

The nanowhatever things are all great, but all we're seeing are press releases and such.
Where are the 10x batteries? Where are the 300LPW Leds? How long do we have to wait? Me wants new technology to drool over! :mecry: