{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T18:48:14Z","timestamp":1790794094172,"version":"4.1.0"},"reference-count":20,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2024,5,28]],"date-time":"2024-05-28T00:00:00Z","timestamp":1716854400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Natural Science Foundation of China","award":["12204409"],"award-info":[{"award-number":["12204409"]}]},{"name":"National Natural Science Foundation of China","award":["2023YZ08"],"award-info":[{"award-number":["2023YZ08"]}]},{"name":"National Natural Science Foundation of China","award":["HIZJU202303"],"award-info":[{"award-number":["HIZJU202303"]}]},{"name":"Natural Science Funding Project of Huzhou City","award":["12204409"],"award-info":[{"award-number":["12204409"]}]},{"name":"Natural Science Funding Project of Huzhou City","award":["2023YZ08"],"award-info":[{"award-number":["2023YZ08"]}]},{"name":"Natural Science Funding Project of Huzhou City","award":["HIZJU202303"],"award-info":[{"award-number":["HIZJU202303"]}]},{"name":"Open project in the field of intelligent mobile unmanned systems, Huzhou Research Institute, Zhejiang University","award":["12204409"],"award-info":[{"award-number":["12204409"]}]},{"name":"Open project in the field of intelligent mobile unmanned systems, Huzhou Research Institute, Zhejiang University","award":["2023YZ08"],"award-info":[{"award-number":["2023YZ08"]}]},{"name":"Open project in the field of intelligent mobile unmanned systems, Huzhou Research Institute, Zhejiang University","award":["HIZJU202303"],"award-info":[{"award-number":["HIZJU202303"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Micromachines"],"abstract":"<jats:p>Lidar has the advantages of high accuracy, high resolution, and is not affected by sunlight. It has been widely used in many fields, such as autonomous driving, remote sensing detection, and intelligent robots. However, the current lidar detection system belongs to weak signal detection and generally uses avalanche photoelectric detector units as detectors. Limited by the current technology, the photosensitive surface is small, the receiving field of view is limited, and it is easy to cause false alarms due to background light. This paper proposes a method based on a combination of image-side telecentric lenses, microlens arrays, and interference filters. The small-area element detector achieves the high-concentration reception of echo beams in a large field of view while overcoming the interference of ambient background light. The image-side telecentric lens realizes that the center lines of the echo beams at different angles are parallel to the central axis, and the focus points converge on the same focal plane. The microlens array collimates the converged light beams one by one into parallel light beams. Finally, a high-quality aspherical focusing lens is used to focus the light on the small-area element detector to achieve high-concentration light reception over a large field of view. The system achieves a receiving field of view greater than 40\u00b0 for a photosensitive surface detector with a diameter of 75 \u03bcm and is resistant to background light interference.<\/jats:p>","DOI":"10.3390\/mi15060712","type":"journal-article","created":{"date-parts":[[2024,5,28]],"date-time":"2024-05-28T13:32:55Z","timestamp":1716903175000},"page":"712","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Design of Lidar Receiving Optical System with Large FoV and High Concentration of Light to Resist Background Light Interference"],"prefix":"10.3390","volume":"15","author":[{"given":"Qingyan","family":"Li","sequence":"first","affiliation":[{"name":"School of Control Science and Engineering, Zhejiang University, Hangzhou 310027, China"},{"name":"Intelligent Optical Sensing and Control Center, Huzhou Institute of Zhejiang University, Huzhou 313000, China"},{"name":"Key Laboratory of Intelligent Photoelectric High-End Equipment in Huzhou, Huzhou 313000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shuo","family":"Wang","sequence":"additional","affiliation":[{"name":"Intelligent Optical Sensing and Control Center, Huzhou Institute of Zhejiang University, Huzhou 313000, China"},{"name":"School of Advanced Technology, Xi\u2019an Jiaotong-Liverpool University, Suzhou 215123, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiajie","family":"Wu","sequence":"additional","affiliation":[{"name":"School of Control Science and Engineering, Zhejiang University, Hangzhou 310027, China"},{"name":"Intelligent Optical Sensing and Control Center, Huzhou Institute of Zhejiang University, Huzhou 313000, China"},{"name":"Key Laboratory of Intelligent Photoelectric High-End Equipment in Huzhou, Huzhou 313000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Feiyue","family":"Chen","sequence":"additional","affiliation":[{"name":"Intelligent Optical Sensing and Control Center, Huzhou Institute of Zhejiang University, Huzhou 313000, China"},{"name":"Key Laboratory of Intelligent Photoelectric High-End Equipment in Huzhou, Huzhou 313000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Han","family":"Gao","sequence":"additional","affiliation":[{"name":"Intelligent Optical Sensing and Control Center, Huzhou Institute of Zhejiang University, Huzhou 313000, China"},{"name":"Key Laboratory of Intelligent Photoelectric High-End Equipment in Huzhou, Huzhou 313000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hai","family":"Gong","sequence":"additional","affiliation":[{"name":"Intelligent Optical Sensing and Control Center, Huzhou Institute of Zhejiang University, Huzhou 313000, China"},{"name":"Key Laboratory of Intelligent Photoelectric High-End Equipment in Huzhou, Huzhou 313000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,5,28]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Kirchengast, M., and Watzenig, D. 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