Distorting optical system for automotive µLED-Array headlamps

authored by: Max Caspar Sundermeier, Zhuoqun Dai, Tobias Glück, Philipp Findling, Lukas Hanisch, Roland Lachmayer
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.
Organisation(s): Institute of Motion Engineering and Mechanism Design
PhoenixD: Photonics, Optics, and Engineering - Innovation Across Disciplines
Type: Conference contribution
No. of pages: 7
Publication date: 14.03.2023
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Computer Science Applications, Applied Mathematics, Electrical and Electronic Engineering
Electronic version(s): https://doi.org/10.1117/12.2666740 (Access: Closed)