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Novel refractive LiDAR sensor based on a variable lens pair prism

  • Matthias Baier

    Matthias Baier received his B.Eng. and M.Eng. degrees in Mechatronics from Heilbronn University of Applied Sciences, Germany. His master’s thesis focused on integrating a MEMS mirror into a rotating macroscanner LiDAR sensor. Currently, he is a PhD student at the Karlsruhe Institute of Technology and at Robert Bosch GmbH. The subject of his PhD thesis is the development and investigation of a LiDAR sensor based on the combination of two state-of-the-art principles, micro- and macroscanners.

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    , Jan Sparbert

    Since 2016, Jan Sparbert is a systems engineer for an automotive LiDAR for highly automated driving at Robert Bosch GmbH, Abstatt, Germany. After his diploma in Electrical Engineering at the Christians-Albrechts-University in Kiel in 1996, he earned his PhD degree in the field of sensing and path planning for autonomous robots at the University of Ulm in 2002. He started at Bosch as a developer of sensor data fusion for assisted driving functions. In 2011, he switched to Bosch Corporate Research, where he worked on automated parking functions and performed scouting of new sensor technologies. There, he also prepared the development of an automotive LiDAR. He is expert in automotive sensors (LiDAR, radar, video, ultrasonic), their interaction with the perception, and their use in highly automated driving functions.

    and Cornelius Neumann

    Cornelius Neumann studied Physics and Philosophy at the University of Bielefeld, Germany. After his PhD, he worked for the automotive supplier Hella in the advanced development for automotive lighting. During his time at Hella, he was responsible for signal lighting, LED application, and acted as a director of the L-LAB, a laboratory for lighting and mechatronics in public-private partnership with the University of Paderborn, Germany. In 2009, he became Professor for Optical Technologies in Automotive and General Lighting and one of the two directors of the Light Technology Institute at the Karlsruhe Institute of Technology, Germany.

Published/Copyright: March 23, 2019
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Abstract

We present a new type of Light Detection And Ranging (LiDAR) sensor based on a variable lens pair prism. This system combines the principles of macro- and microscanners to exploit the advantages and eliminate most of the disadvantages of both system types. We describe the concept of this new LiDAR sensor and examine the system performance by simulation. Afterwards, we investigate the spot shape and beam profile with respect to the main system parameters such as the gap between lenses, the deflection angle, and the measurement distance. Furthermore, we present solutions to optimize the variable lens pair prism to achieve an ideal spot shape and beam profile in the entire field of view (FoV).

About the authors

Matthias Baier

Matthias Baier received his B.Eng. and M.Eng. degrees in Mechatronics from Heilbronn University of Applied Sciences, Germany. His master’s thesis focused on integrating a MEMS mirror into a rotating macroscanner LiDAR sensor. Currently, he is a PhD student at the Karlsruhe Institute of Technology and at Robert Bosch GmbH. The subject of his PhD thesis is the development and investigation of a LiDAR sensor based on the combination of two state-of-the-art principles, micro- and macroscanners.

Jan Sparbert

Since 2016, Jan Sparbert is a systems engineer for an automotive LiDAR for highly automated driving at Robert Bosch GmbH, Abstatt, Germany. After his diploma in Electrical Engineering at the Christians-Albrechts-University in Kiel in 1996, he earned his PhD degree in the field of sensing and path planning for autonomous robots at the University of Ulm in 2002. He started at Bosch as a developer of sensor data fusion for assisted driving functions. In 2011, he switched to Bosch Corporate Research, where he worked on automated parking functions and performed scouting of new sensor technologies. There, he also prepared the development of an automotive LiDAR. He is expert in automotive sensors (LiDAR, radar, video, ultrasonic), their interaction with the perception, and their use in highly automated driving functions.

Cornelius Neumann

Cornelius Neumann studied Physics and Philosophy at the University of Bielefeld, Germany. After his PhD, he worked for the automotive supplier Hella in the advanced development for automotive lighting. During his time at Hella, he was responsible for signal lighting, LED application, and acted as a director of the L-LAB, a laboratory for lighting and mechatronics in public-private partnership with the University of Paderborn, Germany. In 2009, he became Professor for Optical Technologies in Automotive and General Lighting and one of the two directors of the Light Technology Institute at the Karlsruhe Institute of Technology, Germany.

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Received: 2018-10-08
Accepted: 2019-02-16
Published Online: 2019-03-23
Published in Print: 2019-04-24

©2019 THOSS Media & De Gruyter, Berlin/Boston

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