The first series cars with LED frontlighting are already on the roads, and further projects using HB LEDs for forward lighting are under development. A pseudo standard of the optical system for these headlamps seems to be the projector type. However, contrary to the situation for Halogen and Xenon systems, the lower temperature levels in LED headlamps permit the use of alternative lens materials. Thermoplastics allow for cost effective production of highly customized lenses, exhibiting significant weight advantages over glass lenses. This becomes even more important, if multi-lens approaches are applied for adaptive LED headlamps. Benefits, challenges and ways for further development of thermoplastic lenses in automotive headlamps are discussed. Injection moldable transparent silicone as alternative polymer material for primary and secondary optics is presented, and the question is raised, whether silicone lenses with its superior thermal stability can be an alternative even for Xenon or Halogen systems.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    The advent of polymer projector headlamp lenses


    Contributors:


    Publication date :

    2009


    Size :

    10 Seiten, 10 Bilder, 7 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Multifunctional headlamp and image projector

    SALTER STUART C / JOHNSON AARON B / LUCACCI LUCIANO et al. | European Patent Office | 2023

    Free access

    Multi-functional headlamp and image projector

    SALTER STUART C / JOHNSON AARON B / LUKACS LUCIANO et al. | European Patent Office | 2023

    Free access

    HYBRID PROJECTOR LED LOW BEAM HEADLAMP

    WOODWARD RONALD O | European Patent Office | 2018

    Free access

    Design and optimization of a projector headlamp

    Zollers,M. / David,S. / Optical Res.Ass.,US | Automotive engineering | 2009