原文传递
Market-Weighted Description of Low-Beam Headlighting Patterns in the U.S.: 2004.
| 题名： | Market-Weighted Description of Low-Beam Headlighting Patterns in the U.S.: 2004. |
| 作者： | schoettle, b. sivak, m. flannagan, m. j. kosmatka, w. j. |
| 关键词： | low beamed headlamps,vehicle lighting devices,photometry,headlighting |
| 摘要： | 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. |
| 报告类型： | 科技报告 |
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