Optical axis calibration method and device, and electronic device

By combining the camera device and the calibration platform, the difference information of the light spot image is obtained, and the orientation of the calibration plate and the transmitting lens is adjusted. This solves the problems of poor versatility and low efficiency in the optical axis calibration of the lidar module, and achieves efficient and accurate optical axis calibration.

CN122410486APending Publication Date: 2026-07-17NANCHANG OUFEI BIOLOGICAL IDENTIFICATION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANCHANG OUFEI BIOLOGICAL IDENTIFICATION TECH CO LTD
Filing Date
2026-03-12
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The current process of calibrating the optical axis of a lidar module requires a special metal sample, which has poor versatility, a long assembly process, and the cumulative tolerances affect the calibration efficiency and accuracy.

Method used

By employing a camera device and a calibration platform, the light spot image is acquired by moving the calibration platform, the difference information of the light spot center is determined, and the orientation of the calibration plate and the emitting lens is adjusted to achieve optical axis calibration, thus avoiding reliance on traditional gold-plated samples.

Benefits of technology

It improves the accuracy and efficiency of optical axis calibration, simplifies calibration steps, shortens time consumption, and enhances overall calibration efficiency.

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Abstract

本申请公开了一种光轴校准方法、装置及电子设备,该方法包括:控制校正平台从初始位置向第一方向移动预设距离,到达第一位置,并获取校正平台在第一位置时摄像装置采集校正板的第一光斑图像,并确定第一光斑中心;控制校正平台从第一位置返回初始位置,并从初始位置向第二方向移动预设距离,到达第二位置,并获取校正平台在第二位置时摄像装置采集校正板的第二光斑图像,并确定第二光斑中心;确定第一光斑中心及第二光斑中心之间的第一差异信息;若第一差异信息大于差异阈值,则根据第一差异信息控制校正平台调整校正板的姿态,和 / 或,控制夹持装置调整发射镜头的姿态。通过本申请可以提高对雷达模组的光轴进行校准的效率和准确性。
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