New high intensity LED Light Sources and their impact on Automotive Front Lighting Setups English

  • Category Technical paper
  • Edition SIA
  • Date 10/14/2014
  • Author Stefan GROETSCH, Alexander GUENTHER, Andreas REITH, Jessica SCHNEIDER, Konrad WAGNER, Guido WEISS - OSRAM Opto Semiconductors
  • Language English
  • Type PDF file (1.43 Mo)
    (Downloadable immediately on receipt of online payment)
  • Number of pages 10
  • Code R-2014-03-12
  • Fee from 8.00 € to 10.00 €

Novel engineering prototypes of white high current LEDs of 600 lm/mm² and a peak luminance of 224 Mcd/m² are used to built a headlamp acc. ECE R 112. An innovative thermally optimized package technology enables operating current densities of 3 A/mm². The low beam reflector of only 30 mm x 50 mm uses a single chip LED delivering 1240 lm in the hot stabilized status at 6 Amperes. A conventional 3 Chip SMT multi chip LED for the high beam is supported by an high current LED spot to get to the legal limits of 215 kcd. The demonstrator mockup headlamp also includes PWM dimmable current sources.


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