Dr. Martin Rode Profile

Dr. Martin Rode

at Hella KGaA Hueck & Co

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Proceedings Article | 26 September 2007 Paper

High performance LED lamps for the automobile: needs and opportunities

Wolfgang Pohlmann, Thomas Vieregge, Martin Rode

Proceedings Volume 6797, 67970D (2007) https://doi.org/10.1117/12.760978

KEYWORDS: Light emitting diodes, Headlamps, LED lighting, Light sources and illumination, Lamps, Light sources, Halogens, Reliability, Prototyping, Atrial fibrillation

Read Abstract +

Light emitting diodes have been an option in automotive lighting for more than 15 years now. The capacities and colours of LEDs available in the recent past were sufficient to realize interior lighting and rear signalling functions. In the meantime, series applications, such as position or daytime running lights, using white LEDs for signal functions in headlamps, are no longer a rarity. The next step - realizing main lighting functions for series applications - is imminent. LED will offer a multitude of styling options in rear and front lighting, as well as a light colour which differs considerably from that of the previous halogen and xenon headlamp systems. The further advantages of the LED compared with conventional light sources with regard to service life, power efficiency and package space requirements can thus only be sensibly exploited by means of suitable structural and connection techniques. Increasing complexity and installation conditions in an often rough environment are demanding challenge to realize the hardware of LED lamps. In this paper at first the requirements on LEDs and LED modules in automotive exterior lighting will be discussed. Furthermore the status of industrialization and modular concepts for signal lamps and full LED headlamps will be presented. The paper will finish with a discussion of new headlamp active lighting functions like maker light or glare free high beam, implemented in hybrid or with pure LED technology. In the subsequent headlamp integration, from about 2012, freely-addressable LED-Arrays will possibly enable these new types of lighting functions.

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