Lidar

By setting up reflectors and non-collinear transmitter arrays in the lidar, the problem of uneven point cloud distribution after the field of view is expanded is solved, achieving a larger field of view and a more uniform point cloud distribution.

CN122410482APending Publication Date: 2026-07-17HESAI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HESAI TECH CO LTD
Filing Date
2025-01-17
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

How to improve the uniformity of point cloud distribution while expanding the field of view of lidar?

Method used

By setting a reflector in the lidar to rotate around the axis, the detection light is deflected to different directions. At least three non-collinear transmitters are set in the plane perpendicular to the emission axis. The point cloud distribution is optimized by combining the arrangement of the transmitters and the use of blind spot transmitter arrays.

Benefits of technology

It effectively expands the field of view of the lidar, improves the spatial uniformity of the point cloud, simplifies the optical path design, and reduces the assembly difficulty.

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Abstract

本公开提供一种激光雷达。所述激光雷达包括：发射器，所述发射器被配置为产生探测光；透镜组，所述透镜组被配置为传输所述探测光，所述透镜组具有发射光轴；反射镜，所述反射镜被配置为绕转轴转动，使所述探测光偏转至不同的方位，所述转轴与所述反射镜的法向的夹角大于0度且小于90度；在垂直所述发射光轴的平面内，至少有三个所述发射器不共线。在垂直所述发射光轴的平面内，至少有三个发射器不共线，可以有效扩大激光雷达视场范围。使至少三个发射器在垂直发射光轴的平面内不共线的设置方法，可以有效提高点云分布的空间均匀性。
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