Introduction
To improve safety of modern cars through better headlight systems performance, there are currently four large potential research fields:
Field 1: Xenon headlights , LED headlamps and the optimal light emission of headlamps (lateral light distribution, higher illuminance of the area directly under the HV-point…).
Field 2: Adaptive Headlights (adapted to various traffic conditions: city traffic, country road, highway, static and dynamic bending, cornering light function, automatic low/high beam switching).
Field 3: Headlight cleaning systems- dynamic leveling systems.
Field 4: Intelligent light systems , longitudinal light distribution, Marker light, glare free systems.
Field 1 has already been the subject of systematic studies through various physiological research programs (TU Darmstadt 1997-2008, LRC/USA and UMTRI/USA) and traffic safety analytical studies (TÜV 2007, GIDAS), whereas the fields 2, 3, and 4, although partly covered, have never been systematically analysed, leaving important questions pending. If we try to be more systematic, we would welcome in these different fields following studies:
Field 2: Adaptive headlights
Possible comprehensive studies should include following three aspects:
1. Literature research covering results of previous studies: where did they come to conclusive findings, what are the potential subjects where there are still open questions. This literature research should not be limited to national studies but should be international.
2 . Physiological and psychophysical inquiries with the questions:
– Can we and how can be the benefits of adaptive Light systems quantitatively compared to conventional Light systems (Xenon and halogen bulbs).