A Light Detection and Ranging LiDAR system (800) for detecting an object in a blind spot area is provided. The system includes a housing (810) and a scan-based LiDAR assembly disposed in the housing. A scanning-based LiDAR assembly includes a first light source (871), a multi-facet polygon (820), a window (830), a collimator lens (860), a combination mirror (850), an opening (852), a collection lens (840), a light detector (881), a laser circuit board (871), and a detector circuit board (880). The first light source (871) provides a plurality of light beams. A multi-facet polygon (820) is rotatable to scan the plurality of light beams to illuminate the FOV. The multi-facet polygon (820) and the first light source (810) are vertically stacked, preferably the first light source (810) is on top of the multi-facet polygon (820). A collimating lens (860) is optically coupled to the first light source (810) and collimates the plurality of light beams (890). One or more collection lenses (840) collect return light (895) generated based on illumination of the first FOV. A light detector (881) receives the collected return light (895). The polygon mirror (820) has four wedge-shaped facets with variable angles of inclination, and the LiDAR system requires a longer detection distance and a larger vertical field of view in order to detect objects in the blind spot area of the vehicle. Thus, the LiDAR (800) preferably further comprises a different wavelength based non-scanning based flash LiDAR component, which is also encapsulated in the housing (810) to maintain a compact design.
提供了一种用于检测盲点区域中的物体的光检测和测距LiDAR系统(800)。该系统包括壳体(810)和设置在壳体中的基于扫描的LiDAR组件。基于扫描的LiDAR组件包括第一光源(871)、多刻面型多边形件(820)、窗口(830)、准直透镜(860)、组合镜(850)、开口(852)、收集透镜(840)、光检测器(881)、激光电路板(871)和检测器电路板(880)。第一光源(871)提供多个光束。多刻面型多边形件(820)可旋转以扫描所述多个光束来照射FOV。多刻面型多边形件(820)和第一光源(810)竖直地堆叠,优选地第一光源(810)在多刻面型多边形件(820)的顶部上。准直透镜(860)光学耦接到第一光源(810),并且对多个光束(890)进行准直。一个或多个收集透镜(840)收集基于对第一FOV的照射所生成的返回光(895)。光检测器(881)接收所收集的返回光(895)。多边形镜(820)具有可变倾斜角度的四个楔形刻面,为了探测车辆盲点区域中的物体,LiDAR系统需要具有较长的探测距离和较大的垂直视场。因此,LiDAR(800)优选地进一步包括基于不同波长的基于非扫描的闪光LiDAR组件,该组件也封装在外壳(810)中以保持紧凑的设计。
Compact LiDAR system for detecting objects in blind spot areas
用于检测盲点区域中的物体的紧凑型LiDAR系统
2024-06-21
Patent
Electronic Resource
Chinese
COMPACT LIDAR SYSTEMS FOR DETECTING OBJECTS IN BLIND-SPOT AREAS
European Patent Office | 2023
|COMPACT LIDAR SYSTEMS FOR DETECTING OBJECTS IN BLIND-SPOT AREAS
European Patent Office | 2023
|COMPACT LIDAR SYSTEMS FOR DETECTING OBJECTS IN BLIND-SPOT AREAS
European Patent Office | 2024
|BLIND SPOT DETECTING SYSTEM AND BLIND SPOT DETECTING METHOD
European Patent Office | 2025
|BLIND SPOT DETECTING APPARATUS AND BLIND SPOT DETECTING METHOD THEREOF
European Patent Office | 2020
|