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Vers un modèle thermo-optique des LEDs utilisées dans les systèmes d’éclairage automobile

Abstract : Automotive lighting is evolving towards high definition beams, with up to several hundred light sources per square millimetre. To achieve such performance, conventional systems are being replaced by high-power LED arrays based on the latest optoelectronic technologies. The optical energy emitted is such that, to avoid degradation of the lighting system, it is necessary to controland/or dissipate excess heat. In addition, once the component is integrated into its optical system, the concentration of light generates self-heating of the optical system. For this reason, accurate and robust simulation models must be developed. In this study, the thermo-optical model of a high luminance LED is developed and validated using infrared thermography measurements. The simulation results are in agreement with experiments. The emission model gives us an acceptable accuracy with an error of less than 10%.
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Submitted on : Tuesday, June 15, 2021 - 9:48:32 AM
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Clément Rongier, Rémi Gilblas, Fabrice Schmidt, Yannick Le Maoult. Vers un modèle thermo-optique des LEDs utilisées dans les systèmes d’éclairage automobile. SFT 2021 - 29 ème congrès Franças de Thermique, Jun 2021, Belfort (online), France. pp.191-199, ⟨10.25855/SFT2021-024⟩. ⟨hal-03260561⟩

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