Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Near-Infrared Reflective Dark-Tone Bilayer System for LiDAR-Based Autonomous Vehicles

Near-Infrared Reflective Dark-Tone Bilayer System for LiDAR-Based Autonomous Vehicles Light Detection and Ranging (LiDAR) is a representative sensor for autonomous vehicles (AVs) by recognizing surrounding objects through detecting the reflected near-infrared (NIR) light. However, this sensor has a weakness in recognizing the conventional carbon black-based dark-tone cars due to their low NIR reflectance. This cognitive impairment is a potential factor in a car accident in the AV system. Therefore, it is necessary to develop a dark-tone paint that can be applied to LiDAR by reflecting NIR In this work, we developed a NIR reflective dark-tone bilayer system. As the bottom layer (surfacer layer), we used a conventional NIR-reflective surfacer. For the dark-tone top layer (basecoat layer), organic pigment-based paints were prepared. Various combinations of organic pigments such as perylene, copper(II) phthalocyanine, perylene diimide derivatives were studied to give a dark tone. After optimization, the developed bilayers exhibited dark tone with low L* values (less than 25) and high reflectance in the NIR region, over 60%, especially at 905 nm. Therefore, we expect the developed bilayer system to be applied as a dark-tone paint detectable by LiDAR.[graphic not available: see fulltext] http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Macromolecular Research Springer Journals

Near-Infrared Reflective Dark-Tone Bilayer System for LiDAR-Based Autonomous Vehicles

Loading next page...
 
/lp/springer-journals/near-infrared-reflective-dark-tone-bilayer-system-for-lidar-based-gbrxCgIaZQ

References (26)

Publisher
Springer Journals
Copyright
Copyright © The Polymer Society of Korea and Springer 2022
ISSN
1598-5032
eISSN
2092-7673
DOI
10.1007/s13233-022-0037-5
Publisher site
See Article on Publisher Site

Abstract

Light Detection and Ranging (LiDAR) is a representative sensor for autonomous vehicles (AVs) by recognizing surrounding objects through detecting the reflected near-infrared (NIR) light. However, this sensor has a weakness in recognizing the conventional carbon black-based dark-tone cars due to their low NIR reflectance. This cognitive impairment is a potential factor in a car accident in the AV system. Therefore, it is necessary to develop a dark-tone paint that can be applied to LiDAR by reflecting NIR In this work, we developed a NIR reflective dark-tone bilayer system. As the bottom layer (surfacer layer), we used a conventional NIR-reflective surfacer. For the dark-tone top layer (basecoat layer), organic pigment-based paints were prepared. Various combinations of organic pigments such as perylene, copper(II) phthalocyanine, perylene diimide derivatives were studied to give a dark tone. After optimization, the developed bilayers exhibited dark tone with low L* values (less than 25) and high reflectance in the NIR region, over 60%, especially at 905 nm. Therefore, we expect the developed bilayer system to be applied as a dark-tone paint detectable by LiDAR.[graphic not available: see fulltext]

Journal

Macromolecular ResearchSpringer Journals

Published: May 1, 2022

Keywords: LiDAR; paint; organic pigments; perylenediimide; perylene; copper(II) phthalocyanine

There are no references for this article.