Distorting optical system for automotive µLED-array headlamps

Max Caspar Sundermeier; Zhuoqun Dai; Tobias Glück; Philipp Findling; Lukas Hanisch; Roland Lachmayer

doi:10.1117/12.2666740

14 March 2023 Distorting optical system for automotive μLED array headlamps

Max Caspar Sundermeier, Zhuoqun Dai, Tobias Glück, Philipp Findling, Lukas Hanisch, Roland Lachmayer

Author Affiliations +

Proceedings Volume 12441, Light-Emitting Devices, Materials, and Applications XXVII; 124410N (2023) https://doi.org/10.1117/12.2666740
Event: SPIE OPTO, 2023, San Francisco, California, United States

Conference Poster

Abstract

Automotive headlamps equipped with high-resolution modulator technology can provide comfort and safety features like a glare-free high beam and road projections. Previous research has shown the importance of beam shaping for automotive headlamps with a peak of the illuminance in the center of the FoV for longer viewing range. The peak of the illuminance can be achieved through the use of a distorting optical system, which is proved for a homogenously illuminated DMD. However, DMD-based headlamps are limited in their use due to systemic disadvantages. In particular, luminous efficacy and contrast are advantages of µLED-Array over illuminated DMDs, which can be further exploited for improved automotive headlamps. In this paper, we present the optical design of a distorting µLED-Array-based headlamp. In particular, we address the challenges of optical design for lambertian emitters and compare the µLED-Array-based system with a DMD-based system. The use of distorting µLED headlamps is evaluated in conclusion.

Citation Download Citation

Max Caspar Sundermeier, Zhuoqun Dai, Tobias Glück, Philipp Findling, Lukas Hanisch, and Roland Lachmayer "Distorting optical system for automotive μLED array headlamps", Proc. SPIE 12441, Light-Emitting Devices, Materials, and Applications XXVII, 124410N (14 March 2023); https://doi.org/10.1117/12.2666740

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