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原文传递 Recent Trends in the Performance of Tungsten-Halogen and Hid Low Beams in the U.S.

题名：	Recent Trends in the Performance of Tungsten-Halogen and Hid Low Beams in the U.S.
作者：	sivak, m. schoettle, b. flannagan, m. j.
关键词：	High-intensity-lighting; Low-beamed-headlamps; *Photometry-.;Trends-; Photometric-brightness; Performance-.
摘要：	This report (1) presents photometric data for a sample of high-intensity discharge (HID) low beams for model year 2004 vehicles in the U.S. and for the corresponding tungsten-halogen low beams manufactured for use on the same vehicles, and (2) analyzes the technological and photometric trends for low-beam head lighting in the U.S. from 1997 to 2004. There are two main findings. First, from 1997 to 2004 there was a general photometric improvement of both tungsten-halogen and HID low beams. Second, the photometric performance of the current HID low beams is superior to that of the current tungsten-halogen low beams.
报告类型：	科技报告