Multi-chip LED for interior lighting
18 September 2013
Opto-Electronics
The Duris S 8 from OSRAM Opto Semiconductors is a new multi-chip, high-power member of the Duris S LED series. The close grouping of the LED permits very good colour consistency, in combination with a high luminous flux. It is primarily aimed at directional and omnidirectional retrofits, as well as in LED spots in indoor lighting, and is particularly suitable for directional lighting in office and business premises, as well as in the home.
The excellent colour consistency (colour binning) in the directional retrofits is achieved through the close grouping of the LEDs, which corresponds to the coverage of a 5-step MacAdam ellipse. In addition, 3-step MacAdam grouping is available for applications requiring very good colour homogeneity.
The Duris S 8 has a CRI of more than 80 and is grouped by colour coordinates at the junction temperature of 100°C instead of at room temperature, as is customary. It measures just 5,8 x 5,2 mm and is available in two versions, with either six or eight chips. Thanks to the luminous flux of 500 lm at 200 mA, a directional retrofit is possible even with the 8-chip version.
The Duris S 8 can also reduce the system costs of lighting systems. The package consists of an innovative plastic housing material that is not only resistant to ageing at high temperatures and in shortwave light, but also costs less than the ceramic housings frequently used.
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