Design and feasibility study on a compact wide-field LiDAR optical system using polygonal mirrors

IF 3.7 2区工程技术 Q2 OPTICS

Optics and Lasers in Engineering Pub Date : 2025-08-20 DOI:10.1016/j.optlaseng.2025.109273

Wan-Hee Han , Sang-Wook Lee , Jiseok Lim , No-Cheol Park , Wan-Chin Kim

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引用次数: 0

Abstract

This study presents the design and feasibility of a compact LiDAR optical system using polygonal mirrors (PM) with varying pyramidal angles for autonomous vehicle applications. Conventional LiDAR systems face challenges in miniaturization, cost reduction, and field of view limitations, particularly in vertical and horizontal scanning. The proposed PM-based optical system achieves a horizontal field of view (H-FoV) of 120° and a vertical field of view (V-FoV) over 25°, utilizing a cylindrical light beam incident on the PM with facets having differing pyramidal angles. Through theory-based calculation and far-field analysis, the system demonstrates improved vertical steering and minimal overlap between facets, enabling efficient three-dimensional spatial detection. Additionally, the optical design for the receiving system, integrated with a one-dimensional single-photon avalanche diode (SPAD) array, ensures high detection accuracy and compactness. The study verifies the system's feasibility through point cloud simulations, making it suitable for high-speed LiDAR applications in autonomous vehicles and other spatial detection scenarios.

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基于多边形反射镜的小型宽视场激光雷达光学系统设计与可行性研究

本研究提出了一种用于自动驾驶汽车的紧凑型激光雷达光学系统的设计和可行性，该系统使用具有不同锥体角度的多边形反射镜（PM）。传统的激光雷达系统面临着小型化、成本降低和视场限制等方面的挑战，特别是在垂直和水平扫描方面。所提出的基于PM的光学系统实现了120°的水平视场（H-FoV）和超过25°的垂直视场（V-FoV），利用入射到PM上的圆柱形光束具有不同的锥体角度。通过理论计算和远场分析，该系统改善了垂直转向，减少了面间的重叠，实现了高效的三维空间探测。此外，接收系统的光学设计与一维单光子雪崩二极管（SPAD）阵列集成，确保了高检测精度和紧凑性。该研究通过点云模拟验证了该系统的可行性，使其适用于自动驾驶汽车和其他空间探测场景中的高速激光雷达应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optics and Lasers in Engineering 工程技术-光学

CiteScore

8.90

自引率

8.70%

发文量

384

审稿时长

42 days

期刊介绍： Optics and Lasers in Engineering aims at providing an international forum for the interchange of information on the development of optical techniques and laser technology in engineering. Emphasis is placed on contributions targeted at the practical use of methods and devices, the development and enhancement of solutions and new theoretical concepts for experimental methods. Optics and Lasers in Engineering reflects the main areas in which optical methods are being used and developed for an engineering environment. Manuscripts should offer clear evidence of novelty and significance. Papers focusing on parameter optimization or computational issues are not suitable. Similarly, papers focussed on an application rather than the optical method fall outside the journal''s scope. The scope of the journal is defined to include the following: -Optical Metrology- Optical Methods for 3D visualization and virtual engineering- Optical Techniques for Microsystems- Imaging, Microscopy and Adaptive Optics- Computational Imaging- Laser methods in manufacturing- Integrated optical and photonic sensors- Optics and Photonics in Life Science- Hyperspectral and spectroscopic methods- Infrared and Terahertz techniques