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High Efficiency Headlamp Systems with Variable Focus
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English
Abstract
The built-in space available for a headlamp in motor vehicles has been steadily reduced by vehicle manufacturers over the last few years.
In order to continue to provide the driver with the necessary safety equipment, new headlamp designs with improved efficiency are necessary. One such new design, the reflector with variable focus (VF Reflector), is presented in this paper.
The mathematical concept of VF reflectors is explained and the advantages in lighting technique over conventional reflector systems are illustrated by means of concrete examples.
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Citation
Neumann, R., "High Efficiency Headlamp Systems with Variable Focus," SAE Technical Paper 890687, 1989, https://doi.org/10.4271/890687.Also In
References
- Neumann R. Improved Low Beam by Use of Segmented Headlamp Systems SAE Technical Paper Series 870063 1987
- Lindae G. Improvements of Low-Beam Pattern by Use of Polyellipsoid Headlamps (PES) SAE Technical Paper Series 850228 1985
- Spencer Ch. W. Manunta G. High Performance Low Profile Headlamps SAE Technical Paper Series 870060 1987
- Ernst H. Improving the Quality of Illumination of Vehicle Headlamps Automobiltechnische Zeitschrift (ATZ) 90, No. 3 143 1988
- Lindae G. Grundaufbau der Lichtverteilung von Kraftfahrzeug-scheinwerfern Bosch Technische Berichte 1, Heft 5 1966
- Lindae G. Uber die Hell-dunkelgrenze bei Kraftfahrzeug-scheinwerfern Bosch Technische Berichte 2, Heft 2 1967
- Schumacher T. W. Fratty H. Dorleans G. Improvements in Low Beam Lighting Achieved by Complex Surface Reflectors SAE Technical Paper Series 870059 1987