Just “LED” is not enough: Performance Figures to rate LED Headlamps English

  • Category Technical paper
  • Edition SIA
  • Date 10/07/2012
  • Author M. Scholl - Automotive Lighting
  • Language English
  • Type PDF file (459.55 Ko)
    (Downloadable immediately on receipt of online payment)
  • Number of pages 5
  • Code R-2012-02-11
  • Fee from 8.00 € to 10.00 €

LED is synonymous with flexibility and a variety of styling and technical solutions. After the introduction of the first and second generation of All-LED headlamps, it becomes obvious that their photometric properties cover an unexpectedly wide range, from low halogen level up to real Xenon performance. Assessing modern headlighting systems is an important topic for many groups of various backgrounds. The performance of LED headlamps can only be rudimentarily evaluated using luminous flux and maximum intensity, leading to many “selfmade” criteria in consumer report media. The TC4- 45 assessment method was published in 2011 and for the first time offers an objective rating system which helps to judge road safety and performance. In this paper we test the assessment method with several headlighting systems from Halogen up to LED headlamps with different performance profiles. We show that in addition to Emax and luminous flux, a comprehensive rating method is necessary, and TC4-45 is well suited to rate the performance of headlights.

 

Order

Conference proceedings and magazines are sent by post contrary to the PDF files, which can be downloaded as soon as the payment is completed.
They can't be ordered in the same shopping cart.

Select your fee

INGENIEURS DE L'AUTO SE DIGITALISE

 

 

La revue Ingénieurs de l’Auto est maintenant diffusée en print et on line. Une grande première pour la SIA avec ce numéro 865, disponible au format numérique.

Cette version digitale sera, à chaque numéro, réservée aux membres de la SIA abonnés.

Exceptionnellement pour ce premier numéro on line, et en lien avec la situation de confinement et de télétravail de beaucoup d’ingénieurs de notre industrie, la version digitale du numéro de Mai est accessible à tous.

 

DÉCOUVRIR LA REVUE