Zhang Shuo, Wu Baiyang, Bi Yong, Gao Weinan
Applied Laser Research Center, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
University of Chinese Academy of Sciences, Beijing 100049, China.
Micromachines (Basel). 2024 Sep 30;15(10):1232. doi: 10.3390/mi15101232.
In this paper, we propose a simple method to generate the uniform illumination using a pyramid prism for Plane Array Laser Imaging Detection and Ranging (PA-LiDAR). The principle of the pyramid prism shaping the Gaussian beam to form a uniform beam was analyzed theoretically. By changing the parameters of the pyramid prism and laser beam, the profile distribution of the output beam can be easily adjusted. Based on the operation mode and illumination requirements of PA-LiDAR, we have developed a set of LiDAR prototypes using a pyramid prism and carried out experimental research on these prototypes. The simulation and experimental results demonstrated that this method can achieve a uniform illumination beam with excellent propagation properties for meeting the technical requirements of PA-LiDAR. This method of uniform illumination has the advantages of being simple, flexible, easily adjustable and convenient to operate.
在本文中，我们提出了一种使用棱锥棱镜为平面阵列激光成像探测与测距（PA-LiDAR）生成均匀照明的简单方法。从理论上分析了棱锥棱镜将高斯光束整形以形成均匀光束的原理。通过改变棱锥棱镜和激光束的参数，可以轻松调整输出光束的轮廓分布。基于PA-LiDAR的工作模式和照明要求，我们开发了一套使用棱锥棱镜的LiDAR原型，并对这些原型进行了实验研究。仿真和实验结果表明，该方法能够实现具有优异传播特性的均匀照明光束，以满足PA-LiDAR的技术要求。这种均匀照明方法具有简单、灵活、易于调节且操作方便的优点。
