Performance evaluations of LED headlamps |
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| Authors: | B. Kang B. Yong K. Park |
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| Affiliation: | (1) Department of Surgery, Division of Traumatology and Surgical Critical Care, University of Pennsylvania School of Medicine and University of Pennsylvania Medical Center, 2 Dulles, 3400 Spruce Street, Philadelphia, PA 19104, USA; |
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| Abstract: | Due to rapid progress in LED (Light Emitting Diode) technology, LEDs have become increasingly prevalent in applications to automotive lighting. This paper studies recent trends of LED headlamps along with various experiments regarding photometric characteristics, glare, and visibility. Experimental results are compared to those of halogen and HID (high intensity discharge) headlamps. LED headlamps are found to be still inferior to conventional headlamps with respect to glare. However, many properties of LED headlamps (luminous intensity, beam width, energy efficiency, and design) are competitive with halogen and HID headlamps. The findings in this investigation will henceforth be reported to the Korean Motor Vehicle Safety Standard (KMVSS). |
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