The introduction of LEDs in automotive lighting has enabled disruptive design changes for a range of functionalities. In particular, signal lighting and day-time running lights can now be realized by visually attractive and brand-specific light-guide solutions.Nevertheless, system efficiency has been identified as a key issue in the implementation of light guide solutions. Light-guide efficiency is influenced by three factors. First, the match between far-field pattern given by regulations and generated one. Second, internal losses inside of the light-guide. Finally, the transfer of LED flux into the light-guide input facet.The latter factor, often denoted as incoupling efficiency, is dominated not only by geometrical light-guide dimensions but also by LED shape and radiation characteristics.In this paper, the influence of LED design on the incoupling efficiency is underlined. Comparing dome-shaped and flat-cast LEDs, conclusions from an LED as well as from a chip perspective are derived.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    LED Design for Light-Guides in Automotive Lighting Applications


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Brick, Peter (Autor:in)

    Kongress:

    SAE 2012 World Congress & Exhibition ; 2012



    Erscheinungsdatum :

    2012-04-16




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    LED design for light-guides in automotive lighting applications

    Brick,P. / Osram Opto Semiconductors,DE | Kraftfahrwesen | 2012


    LED Design for Light-Guides in Automotive Lighting Applications

    Brick, P. / Society of Automotive Engineers | British Library Conference Proceedings | 2012


    LED design for automotive light-guides

    Streppel, U. / Brick, P. / Verein Deutscher Ingenieure et al. | British Library Conference Proceedings | 2012


    LED design for automotive light guides

    Streppel,U. / Brick,P. / Osram,Regensburg,DE | Kraftfahrwesen | 2012


    LED design for automotive light-guides

    Streppel, Ulrich / Brick, Peter | Tema Archiv | 2012