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news digest ♦ LEDs


lm. Owing to LED technology, the light does not contain any harmful UV or infrared light components, thus sensitive products such as cosmetics or foodstuffs can also be illuminated. The low heat is given off to the back of the module via standardised thermal interfaces.


The fast pace of the LED era poses new challenges for luminaire manufacturers; the great leaps in performance with regard to the light diodes and the technical changes associated with this, require an entirely new luminaire design with every LED generation.


Osram believes it has solved this problem with its Prevaled Light Engine system. The Prevaled module offers standardised performance data and at the same time profits from significant improvements in LED efficiency. To ensure that this standardisation is reliable for the future, a number of manufacturers have teamed up in the Zhaga consortium.


Standards for LED modules that are supported by numerous manufacturers are developed here. “Our developers cooperate closely with the representatives in the consortium. Thus the future standards can be implemented in our products in a timely manner. In the course hereof, luminaires automatically benefit from the development advances made with LED, without this resulting in cost-intensive changes having to be made to the basic construction,” says Wolfgang Andorfer, Senior Director Solid State Lighting at Osram.


Technical Data:


Diameter of module: 50 mm Colour temperature: 2,700K, 3,000K, 3,500K, 4,000K


Colour rendering: Luminous flux: lm, 3,000 lm


Ra > 80 800 lm, 1,500 lm, 2,000 [additional varieties in 4,000


lm and 5,000 lm available from spring 2012] Service life:


80 www.compoundsemiconductor.net January / February 2012 Up to 50,000 hours Module efficiency:


operating temperature) System efficiency:


Up to 108 lm/W (at (Module, cable


and driver) Up to 94 lm/W (at operating temperature)


Cree licenses remote phosphor patents


The company is advancing LED lighting adoption to facilitate the development of LED lights combining remote phosphor optical elements with blue LEDs


Cree has granted five LED lighting manufacturers licenses to select Cree patents through its recently launched remote phosphor licensing program.


“Cree is committed to the development of innovative, energy-efficient LED lighting technology and this program provides access to important technology developed by Cree,” said George Brandes, Cree director of intellectual property licensing. “The remote phosphor licensing program is designed to provide rights under the relevant Cree patents that our LED customers need to develop and commercialise leading-edge LED luminaires and bulbs, accelerating the LED lighting revolution.”


Initial licensees to Cree’s remote phosphor patents include lighting innovators Aurora Energie Corp., Horner APG, Ledzworld Technology, Vexica Technology, and Wyndsor Lighting, LLC.


Cree is currently in discussions with other companies to license the remote phosphor patents and aims to sign additional licensing agreements in the coming months. Details of the royalty-bearing licenses were not disclosed.


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