Homofocal reflectors are an approach to improving headlamp performance by creating sectionalized reflector surfaces that distribute light rays in desired directions. As the sections become infinitely small, these reflectors may approach continuous, variable radius of curvature (VRC) surfaces. Using new reflector design software and the FiELD (Tm) photometric analysis program, a range of variable curvature reflector surfaces have been evaluated. Aperture and filament position effects on photometric performance with a 9004 halogen bulb are described and the ability of this type of reflector to satisfy Federal automotive roadway illumination requirements with non-optically active covers is discussed.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Variable Curvature Headlamp Reflector Parametric Analysis


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Congress & Exposition ; 1991



    Publication date :

    1991-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Variable curvature headlamp reflector parametric analysis

    Erickson,G.A. / Allen,P.J. / Tuck,R.G. et al. | Automotive engineering | 1991


    HEADLAMP REFLECTOR

    European Patent Office | 2015

    Free access

    HEADLAMP REFLECTOR

    European Patent Office | 2015

    Free access

    Variable focus reflector for headlamp computer aided design

    Bosk,R. / Mazur,J. / Zagan,W. et al. | Automotive engineering | 1991


    HEADLAMP DIRECTION INDICATOR REFLECTOR

    European Patent Office | 2015

    Free access