400 Lumen Kirameki LED from Nichia

Nichia has developed 5.5 W and 11 W devices under the name of Kirameki, which have a luminous flux of 200 lm and 400 lm respectively.

The packages measure 14 x 9 x 5.6 mm and contain multiple chips. Both devices operate at 700 mA and produce warm-white light at 4300 K, which is the desired white color for automotive forward lighting.

Another critical feature for this application, demonstrated by Kirameki, is that both the package and the die should have a very small optical area, in order to achieve the required beam pattern with multiple devices.

The maximum junction temperature for the devices is 150°C. Both packages have an extremely low thermal resistance of 6°C/W for the 5.5. W device and 3°C/W for the 11 W device.

http://ledsmagazine.com/articles/news/2/10/19/1

Thanks Newbie!

400 lumens for 11 watts compares very favourably to the WA Solarc HID at 500 lumens for 10 watts (12 watts including ballast).

Now let's see what Lumileds' equivalent part can do.

Please don't hold your breathe Kakster.

any pics of the device?

Excellent! Hopefully in a few years we'll all be able to scrounge these from junkyards out of broken housings to make high-output and shockproof MagLEDs.

SWEEEET

Well...Lumiled's, I'm sure has something similar, or maybe even surpassing Nichia's Kirameki. I'm basing my speculation on the fact that the Surefire Darpa series contracted Lumiled's. They too have a 10W LED in a prototype and also an unbelievable 100W version. Does anyone know if they are single die LEDs?

I CAN ONLY IMAGINE.

Even if Lumiled's matches Nichia's 10W 400 lumens.....i can only imagine what Lumiled's 100W would do.

Either way....a major LED revolution is just on the horizon.

NewBie said:

The packages measure 14 x 9 x 5.6 mm and contain multiple chips. Both devices operate at 700 mA and produce warm-white light at 4300 K, which is the desired white color for automotive forward lighting.
http://ledsmagazine.com/articles/news/2/10/19/1

Click to expand...

@the guys @ hella.

YES they got it.nearly 4000K ...

would be interesting to know what CRI and what Lumen output this LED`s have... (when compare them with warm/cool/cold white...)

@newbiew


you forget a important thing...

>>>
One of the key features of this product, explained Stalions,
is that the efficacy does not fall dramatically for warmer white devices.
<<<
--
Cool white products (4600-9000 K) have an efficacy
of 38 lm/W and a luminous flux of 20 lm,

while the figures for the warm white incandescent-equivalent (2800 K)
device are 31 lm/W and 17 lm.

Devices corresponding to cool fluorescent (4200 K) and warm-white fluorescent (3500 K) are also available,
with intermediate flux and efficacy values.
--




;-)

compare that with the lumiled warm white VS cool/cold serie!

http://www.luxeon.com/products/family.cfm?familyId=2
http://www.luxeon.com/products/line.cfm?lineId=12

lamperich said:

@newbiew


you forget a important thing...

>>>
One of the key features of this product, explained Stalions,
is that the efficacy does not fall dramatically for warmer white devices.
<<<
--
Cool white products (4600-9000 K) have an efficacy
of 38 lm/W and a luminous flux of 20 lm,

while the figures for the warm white incandescent-equivalent (2800 K)
device are 31 lm/W and 17 lm.

Devices corresponding to cool fluorescent (4200 K) and warm-white fluorescent (3500 K) are also available,
with intermediate flux and efficacy values.
--




;-)

compare that with the lumiled warm white VS cool/cold serie!

http://www.luxeon.com/products/family.cfm?familyId=2
http://www.luxeon.com/products/line.cfm?lineId=12

Click to expand...

Okay, so in warm white, Nichia owned LumiLEDs, at an even higher power level. And in cool white, Nichia comes close to LumiLEDs, even at higher power. Down in the lower power range, which is more like the low power Lumileds parts, they owned them awhile ago (before LumiLEDs even annouced their warm white, so the LumiLEDs part was a "me too"), with the warm white Jupiter, pushing 25.5 to 42.8 lm/W depending on bin.
http://www.nichia.com/specification/powerled/NCCL022.pdf

Check out the cool white Jupiter series:
http://www.nichia.com/specification/powerled/NCCL022.pdf

CREE's stuff is here:
http://www.cree.com/Products/lightleds_docs.htm

And from the CREE PR:
Durham, NC, September 2, 2005 – Cree, Inc. (NASDAQ: CREE), a leader in high brightness LED solid-state lighting components, today announced breakthrough performance results achieved in development of Cree Lighting's standard white XLamp™ 7090 Power LED. XLamp 7090 LEDs in development have demonstrated maximum luminous flux of 86 lumens and 70 lumens per watt at 350 mA. This represents a 43 percent increase in brightness compared with the maximum luminous flux of white XLamp 7090 power LEDs currently in production.
http://www.cree.com/press/3.htm

I'm expecting these before summer next year.

And on other fronts...

The LumiLEDs K2 whites have some major issue that has popped up, as the rumor mill has it (remind anyone of the Luxeon V fiasco?). In the long run, this may be aggravated by the sale of the LumiLEDs division to Philips, and loosing the absolutely outstanding support, experience, dedication of the scientists/engineers at Agilent (who have more than contributed more than a boatload to the Luxeons). Though..., Agilent is now free to pursue their own parts, the restrictions being removed (not allowed to compete with LumiLEDs in the past).

200 Lumens nice.
400 lumens very nice.
Now if they will just ship 60 lumen chips out to LRI!!!

LEDninja said:

200 Lumens nice.
400 lumens very nice.
Now if they will just ship 60 lumen chips out to LRI!!!

Click to expand...

That's exactly what I was thinking . We'll see....we'll see.

MB

I'm thinking more in terms of the potential these have when underdriven. 11W and 400 lumens is 36 lm/W. Driving at 25% current will give you over 50 lm/W and about 120 lumens. In other words, the same output as an L5 while using only half the power.

I'm skeptical of Lumiled's 10W and especially 100W LEDs at this point. They may not deliver at all. Even if they do, just cranking up the power is meaningless if the efficiency drops to something awful like 10 or 15 lm/W. I hate to say this, but even though Lumileds was one of the pioneers in the field of high power LEDs more and more they seem like a basket case compared to the likes of Cree, Nichia, and Seoul Semiconductor, to name a few. They really need to do something right now, whether it is a big efficiency bump, or a big price decrease, in order to compete.

Very true.

At this point LumiLEDs (Luxeon) doesn't need to just catch up to their competitors.

They need to take the lead again, if they are capable of getting there.

With the loss of the highly skilled Agilent scientists, due to the sell off of LumiLEDs, the future for them is starting to look really shaky.

Lets just hope they have something alot better than the K2 (a "me too" catch up part, imho, which finally allows LumiLEDs to sell a "Luxeon" that is finally surface mount process compatible). OSRAM, Nichia, Seoul Semiconductor, and CREE have already had their SMT reflow process compatible parts out for some time now.

It is now starting to look like LumiLEDs won't have production K2 whites out until sometime next year. Bummer, since I've been waiting and holding off on all my Luxeon flashlight (spotlight type-throw) purchases, since early this year. No point in buying stuff that is soon to go obsolete. Guess I'll have to wait for a couple more months. Oh well.

Hopefully they have some new, un-announced part which about ready to hit the streets in the next month.

Wasn't there a picture of a lumileds 500lm led in some pdf a while ago?

kongfuchicken said:

Wasn't there a picture of a lumileds 500lm led in some pdf a while ago?

Click to expand...

Publicity stunt. They have been parading that for 2 or 3 years now...

I have seen a LL 1000 Lumen part (proto). Looked like a fat Luxeon - it was shown at an LED conference over a year ago - part of a DOE demonstration project.

Still waiting on availability

HarryN said:

I have seen a LL 1000 Lumen part (proto). Looked like a fat Luxeon - it was shown at an LED conference over a year ago - part of a DOE demonstration project.

Still waiting on availability

Click to expand...

I wonder who will get the real high power LEDs to market first...

What is the market for these LEDs? Home lighting comes to mind when i think of them