News: LEDs
23 July 2021
ams OSRAM unveils first quantum dot LED in 2835 package
ams OSRAM of Premstaetten/Graz, Austria and Munich, Germany has unveiled the Osconiq E 2835 CRI90 (QD), which it claims is the first quantum dot LED in a 2835 package, pushing efficiency to new heights even at very high color-rendering indices (CRIs) and warm light colors, and offering further system benefits for luminaire manufacturers.
The properties of quantum dots allow precise adjustment of the desired color temperature and outstanding efficiency values in the warm-white color spectrum. “With our specially developed quantum dot phosphors, we are the only manufacturer in the market that can offer this technology for general lighting applications,” claims Peter Naegelein, director product management Illumination. “The Osconiq E 2835 is also the only available LED of its kind in the established 2835 package,” he adds, emphasizing the extremely homogeneous illumination.
The Osconiq E 2835 CRI90 (QD) is available in a color temperature range of 2200-6500K and achieves efficiency of over 200lm/W. The space-saving dimensions of the 0.5W component of 2.8mm x 3.5mm enable particularly compact and efficient luminaire designs, says the firm. The good absorption behavior of the quantum dots reduces the amount of nanoparticles required. Unlike other phosphors in general lighting, quantum dot-based solutions are still in their infancy in terms of development – with a promising future of what can be achieved in upcoming product generations, reckons the firm. A feature of the quantum dots is that they are encapsulated in a protective package that makes them more robust, protecting them from moisture and other external influences. The encapsulation technology makes it possible to use the nanoparticles in demanding ‘on chip’ operation within an LED.
The LED also meets the strict requirements of the Single Lighting Regulation (SLR) regarding the energy efficiency of light sources, which will become mandatory in Europe in September. Part of the new guidelines includes a value >50 for saturated red (the R9 value: R1 to R8 is used to determine the CRI.
The Osconiq E2835 is also available in two other versions: a CRI80 component for office and retail lighting solutions and the Osconiq E2835 Cyan, which produces a spectral peak in the blue wavelength range that suppresses melatonin production in the human body, making it suitable for human-centric lighting solutions.
