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CIE 183:2008 Definition of the Cut-Off of Vehicle Headlights
Commission Internationale de L'Eclairage / 01-Aug-2008 / 19 pages |
| Format | Language | Price | Avaliablity |
|---|---|---|---|
| Secure PDF | English (1 file, 200 KB) |
€ 57.00 EUR | Immediate Download |
| Printed Edition | English | € 57.00 EUR | Ships In 24-48 hrs |
Description
A precise objective definition of low-beam visual cut-off is necessary, since a requirement for correct aiming of these beams is specified within all the existing regulations.
At present, aiming of low-beam headlamps is performed visually in Europe and USA (since 1997), using the cut-off line in the beam pattern. A good definition of a visual cut-off is required to allow uniformity in interpretations.
This report provides a survey of studies into low beam visual cut-off that have been carried out in Europe and North America. Based on these studies, a recommendation is made for the definition and measurement of the cut-off line of a low-beam headlamp by photometric means.
The publication is written in English, with a short summary in French and German. It consists of 19 pages with 6 figures.