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LED Headlamps: Glare and Color Rendering.
| 题名： | LED Headlamps: Glare and Color Rendering. |
| 作者： | Sivak-M.; Schoettle-B.; Flannagan-M.J. |
| 关键词： | *Headlamps-; *Glare-; *Color-vision.;Visual-perception; Headlighting-; Light-sources; Illumination-; Traffic-safety; Retroreflective-materials; Comparisons-; Motor-vehicles; Discomfort-; Human-factors-engineering. |
| 摘要： | Because of rapid improvements in the light output of light-emitting diodes (LEDs), serious consideration is being given to using LEDs as light sources for headlamps. This study examined the potential effects of LEDs on discomfort glare for oncoming drivers and on color rendering of retroreflective traffic materials. In both cases, the effects of LED light sources were compared to the changes in these properties that occurred when the traditional tungsten-halogen light sources were replaced with high-intensity discharge (HID) light sources. Specifically, the effect on discomfort glare was estimated by comparing the chromaticities of 7 LED light sources (considered for use in headlamps) with the chromaticities of the light sources from 17 actual HID headlamps. Analogously, the effects on color rendering were estimated by comparing the chromaticities of 46 retroflective materials when illuminated by the LED light sources with the chromaticities of the same materials when illuminated by the HID light sources. |
| 报告类型： | 科技报告 |
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