NewBie
*Retired*
November 2006 in Photonics Spectra, page 105
They mention that at Royal Philips LumiLEDs, scientists there have just combined both flip-chip and thin film approaches and Quantum Wells, to their high efficiency hybrid Lab LED dies (dice), and have finally managed to increase the output to 60lm/W @ 350mA! Very nice possible improvement for the Luxeon. It will be nice to see improved devices once they manage to figure out how to produce the LED die in a production environment, get them then designed into the Luxeons and making modifications needed in the Luxeons, get all the processes worked out and in place for using this new die, and get them on the market, a few years down the road. This is great news.
By underdriving the die at 20mA, they were able to achieve 96lm/W.
The die is larger, the same size as the 80lm/W CREE XR-E, at 1,000um by 1,000um (1x1mm)
Scientists say that this new LumiLEDs (the folks that make the Luxeon) lab LED has a luminance that is 50% higher than a standard automotive halogen filament, when the die was driven at 1,000mA.
They are still working hard to further improve performance, trying to figure out how to extract more light out of the die, working on how to lower the forward voltage, and also reducing the thermal loading effects.
Footnote in the article mentions Applied Physics Letters, Online, so you may also find it there.
It is really good to see researchers around the world making great strides in their research labs at various companies, there are a great many products that have better performance working their way to the market right now.
The future is BRIGHT!
They mention that at Royal Philips LumiLEDs, scientists there have just combined both flip-chip and thin film approaches and Quantum Wells, to their high efficiency hybrid Lab LED dies (dice), and have finally managed to increase the output to 60lm/W @ 350mA! Very nice possible improvement for the Luxeon. It will be nice to see improved devices once they manage to figure out how to produce the LED die in a production environment, get them then designed into the Luxeons and making modifications needed in the Luxeons, get all the processes worked out and in place for using this new die, and get them on the market, a few years down the road. This is great news.
By underdriving the die at 20mA, they were able to achieve 96lm/W.
The die is larger, the same size as the 80lm/W CREE XR-E, at 1,000um by 1,000um (1x1mm)
Scientists say that this new LumiLEDs (the folks that make the Luxeon) lab LED has a luminance that is 50% higher than a standard automotive halogen filament, when the die was driven at 1,000mA.
They are still working hard to further improve performance, trying to figure out how to extract more light out of the die, working on how to lower the forward voltage, and also reducing the thermal loading effects.
Footnote in the article mentions Applied Physics Letters, Online, so you may also find it there.
It is really good to see researchers around the world making great strides in their research labs at various companies, there are a great many products that have better performance working their way to the market right now.
The future is BRIGHT!
