固态面阵激光雷达接收光学系统设计

魏雨; 蒋世磊; 孙国斌; 张兴星; 王玉宁

doi:10.3788/CO.2019-0166

Volume 13 Issue 3

Jun. 2020

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Article Contents

Chinese Optics > 2020 > 13(3): 517-526.

WEI Yu, JIANG Shi-lei, SUN Guo-bin, ZHANG Xing-xing, WANG Yu-ning. Design of solid-state array laser radar receiving optical system[J]. Chinese Optics, 2020, 13(3): 517-526. doi: 10.3788/CO.2019-0166

Citation:

WEI Yu, JIANG Shi-lei, SUN Guo-bin, ZHANG Xing-xing, WANG Yu-ning. Design of solid-state array laser radar receiving optical system[J]. Chinese Optics, 2020, 13(3): 517-526. doi: 10.3788/CO.2019-0166

WEI Yu, JIANG Shi-lei, SUN Guo-bin, ZHANG Xing-xing, WANG Yu-ning. Design of solid-state array laser radar receiving optical system[J]. Chinese Optics, 2020, 13(3): 517-526. doi: 10.3788/CO.2019-0166

Citation:

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Design of solid-state array laser radar receiving optical system

doi: 10.3788/CO.2019-0166

School of Optoelectronic Engineering, Xi’an Technological University, Xi'an 710021, China

Funds: Supported by Research Program of Key Laboratory of Education Department of Shaanxi Province (No. 18JS053); Key Laboratory Project of Shaanxi Provincial Department of Science and Technology (No. 2013SZS14-P01)

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Corresponding author: 2429765449@qq.com
Received Date: 13 Aug 2019
Rev Recd Date: 12 Oct 2019
Publish Date: 01 Jun 2020

Abstract

Abstract

With regards to the safety of solid-state area array lidars, in order to improve the energy uniformity of imaging plane and increase the energy received by the optical system, this paper works to ensure a low signal-to-noise ratio and the detectability of a target. The optical parameters are given by modeling the emitted and received laser energy. The factors affecting the image plane's illumination in the optical receiver are studied and the design elements of optical systems with large fields of view, large relative aperture, and high illumination uniformity are described. Through ZEMAX optimization analysis, a detailed implementation process is then provided. A lidar receiving lens with λ = 905 (±5) nm, a focal length of 15 mm, a relative aperture of 1/1.4, and a field of view 2ω = 76° was designed. The total system length was less than 77 mm, and the MTF value at the spatial frequency of 20 lp/mm was greater than 0.5. The relative distortion at the 0.85 field of view was less than 8% and the unevenness of the image plane illumination was less than 7.2%.This design meets the requirements for lidar detection.
- laser lidar,
- energy analysis,
- optical design,
- large relative aperture,
- relative intensity of illumination

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References(12)

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