The European OLLA project has released a discussion paper on the measurement of luminous efficacy for OLEDs, with the goal of developing a general standard. OLLA, the high brightness Organic LEDs for ICT & next generation Lighting Applications project funded by the European Union, is hoping OLLA has published a white paper to stimulate discussion, which can be downloaded from the OLLA Website.
Importance of efficacy
The efficiency of transforming electrical energy into visible light is one of the crucial parameters for lighting applications. Since 19% of worldwide energy consumption is accounted for lighting applications, there is a clear demand for all lighting technologies to achieve greater efficiency.
"It is very important for a new lighting technology such as OLEDs to have early clear standards defined for its most important light" Parameters," says Karsten Diekmann of Osram Opto Semiconductors, co-author of the white paper. The OLED lamp as a large-area, flat light source bears already a high degree of final luminaire characteristics. Efficacy, so that all early adopters of OLED lighting technology have a good expectation of what light output they can expect".
In May this year, the OLLA project reported OLEDs with an efficacy of 25 lm/W, which is twice as efficient as a standard incandescent lamp.
+++++++
This article was published in the November/December 2007 issue of LEDs Magazine.
To read the full version of this article, please visit our Magazine page, where you can download FREE electronic PDF versions of all issues of LEDs Magazine.
You can also request a print copy of LEDs Magazine (available by paid subscription) and sign up for our free weekly email newsletter .![]()
December 2007 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2004 2005 2006 2007 2008 2009 
Importance of efficacy
The efficiency of transforming electrical energy into visible light is one of the crucial parameters for lighting applications. Since 19% of worldwide energy consumption is accounted for lighting applications, there is a clear demand for all lighting technologies to achieve greater efficiency.
"It is very important for a new lighting technology such as OLEDs to have early clear standards defined for its most important light" Parameters," says Karsten Diekmann of Osram Opto Semiconductors, co-author of the white paper. The OLED lamp as a large-area, flat light source bears already a high degree of final luminaire characteristics. Efficacy, so that all early adopters of OLED lighting technology have a good expectation of what light output they can expect".
In May this year, the OLLA project reported OLEDs with an efficacy of 25 lm/W, which is twice as efficient as a standard incandescent lamp.
+++++++
This article was published in the November/December 2007 issue of LEDs Magazine.
To read the full version of this article, please visit our Magazine page, where you can download FREE electronic PDF versions of all issues of LEDs Magazine.
You can also request a print copy of LEDs Magazine (available by paid subscription) and sign up for our free weekly email newsletter .
Pv Inverter,Pv System Grid Tie Inverter,Pv Solar Power Inverter,Solar Pv Inverter
GuangZhou HanFong New Energy Technology Co. , Ltd. , https://www.hfsolarenergy.com