Design of an off-axis four-mirror system for automotive head-up display

Mao Zhou, Dewen Cheng, Qiwei Wang, Hailong Chen, Yongtian Wang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

It has been a challenge to design an automotive head-up display (HUD) that has large eyebox while maintain a compact structure. In this paper, we present a combiner-type HUD design using freeform mirrors. The HUD is an off-axis fourmirror system consisting of 4 mirrors, which are enclosed in a box to achieve a compact form. The tilt angle of the combiner is adjustable, which can be adapted to different heights of exit pupil. We initially propose an off-axis, fourmirror system which only uses spherical surfaces, then we optimize it by replacing with freeform surfaces, which enables us to balance the residual asymmetrical aberrations. Finally, we obtain an HUD system with good imaging performance.

Original languageEnglish
Title of host publicationAOPC 2020
Subtitle of host publicationDisplay Technology; Photonic MEMS, THz MEMS, and Metamaterials; and AI in Optics and Photonics
EditorsZ. Y. Xu, Y. T. Wang, Q. H. Wang, L. C. Cao, H. K. Xie, C. K. Lee, Y. H. Wang, B. Yang, H. B. Luo, J. Cheng, L. Fang
PublisherSPIE
ISBN (Electronic)9781510639515
DOIs
Publication statusPublished - 2020
Event2020 Applied Optics and Photonics China: Display Technology; Photonic MEMS, THz MEMS, and Metamaterials; and AI in Optics and Photonics, AOPC 2020 - Beijing, China
Duration: 30 Nov 20202 Dec 2020

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11565
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference2020 Applied Optics and Photonics China: Display Technology; Photonic MEMS, THz MEMS, and Metamaterials; and AI in Optics and Photonics, AOPC 2020
Country/TerritoryChina
CityBeijing
Period30/11/202/12/20

Keywords

  • Augmented reality
  • Head-up display
  • Off-axis mirror system
  • Optic design

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Zhou, M., Cheng, D., Wang, Q., Chen, H., & Wang, Y. (2020). Design of an off-axis four-mirror system for automotive head-up display. In Z. Y. Xu, Y. T. Wang, Q. H. Wang, L. C. Cao, H. K. Xie, C. K. Lee, Y. H. Wang, B. Yang, H. B. Luo, J. Cheng, & L. Fang (Eds.), AOPC 2020: Display Technology; Photonic MEMS, THz MEMS, and Metamaterials; and AI in Optics and Photonics Article 1156507 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11565). SPIE. https://doi.org/10.1117/12.2579841