Laser Radar System Based on Lightweight Diffractive Lens Receiver System
Jiajia Yin,
Mengxia Hou,
Bin Fan,
Jiang Bian,
Junfeng Du
Affiliations
Jiajia Yin
National Key Laboratory of Light Field Control Science and Technology, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China
Mengxia Hou
National Key Laboratory of Light Field Control Science and Technology, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China
Bin Fan
National Key Laboratory of Light Field Control Science and Technology, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China
Jiang Bian
National Key Laboratory of Light Field Control Science and Technology, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China
Junfeng Du
National Key Laboratory of Light Field Control Science and Technology, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China
Diffractive lens has advantages over traditional reflective lens, such as light weight, high folding compression ratio, high tolerance for surface figure error and low manufacturing costs. It provides a new technical approach for a lightweight LiDAR ranging system. In this work, a laser radar system based on a diffractive lens receiver system has been designed. The receiver system is a hybrid structure consisting of an eight-level diffractive lens, a collimation set and a convergence set. Combined with the single photodetector, the designed laser radar system can simultaneously achieve measurements at near-field distances of 6.0 m, 9.9 m, and 16.1 m and far-field distances of 851.2 m.
