The purpose of this project was to determine what changes might be made to the automotive low-beam lighting specifications to improve driver nighttime performance. The project was carried out in two phases. In Phase 1 the literature was reviewed and four studies of rear view mirror glare problems were conducted. In Phase 2 several laboratory and field studies were carried out. These were concerned with discomfort glare, foreground illumination, and beam color. An analysis of system performance of headlamp beams was conducted, using data from another study. The various lighting systems that had been field tested were also analyzed using the Ford CHESS model to evaluate system performance. Based on the results of the experimental work, recommendations were made for changes to the low-beam specifications in FMVSS 108.
Improved Low-Beam Photometrics
1983
180 pages
Report
No indication
English
NTRS | 1978
|Improved interferometer beam splitter
NTRS | 1976
|Improved beam vibration equations: asymptotic approach
Online Contents | 1994
|