Automotive front lighting is evolving towards digital and adaptive high definition beams. To create such functions, multiple LED designs are replaced with new LED concepts using only one high luminance LED. Light concentration emitted from this optoelectronic component generates a high density of energy which must be thermally managed. Indeed, optical performance and reliability of components are directly linked to the LED temperature. Thus, to optimize cooling system, accurate and efficient numerical models must be developed. The validation of these models are based on comparison with experimental data. In this paper, an infrared camera was used to measure quantitatively the temperature of a high luminance LED emitting area and was then compared to 3D thermal simulations.

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