The present study was designed to update the market-weighed database of current U.S. low-beam headlamps for model year 2004. The main features of this study were as follows: The lamps to be photo metered were directly purchased from vehicle dealerships, thus avoiding the potential problem of self-selection with donated lamps; The selected lamps were designed for use on 39% of all passenger vehicles currently being sold in the U.S.; and The obtained photometric data were weighted by the current sales figures for the respective vehicle models.


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    Title :

    Market-Weighted Description of Low-Beam Headlighting Patterns in the U.S.: 2004


    Contributors:
    B. Schoettle (author) / M. Sivak (author) / M. J. Flannagan (author) / W. J. Kosmatka (author)

    Publication date :

    2004


    Size :

    24 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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