LED Headlamps - Highly Efficient Optical Systems 2005-01-0860
In recent years the efficiency of Light Emitting Diodes (LEDs) has increased rapidly. Using red, amber or white LEDs for exterior automobile rear lighting is already state of the art and offers new styling possibilities. Since up to 70 lm / Watt and 150 lm / LED for white LEDs are predicted, they become interesting for headlamp functions like low and high beam. Therefore new styles and technical solutions are feasible. Nevertheless, creating a full LED headlamp is still challenging.
New high efficient optical design methods to create front signal functions like daytime running light or turn indicator weather with medium bright LEDs (1 lm to 10 lm per LED) or with high bright LEDs (30 lm to 100 lm per LED) will be discussed.
A space optimized full LED headlamp, which fulfills the regulations but consume much less space compared to halogen headlamps will be presented.
A light performance optimized full LED headlamp, which reaches xenon headlamp performance and fits in a current headlamp housing will be shown.