Linking Rainbows and Autonomous Vehicles

摘要

A recent study (Rada et al. 2021) explains the physics behind reflective microscale concave interfaces (MCIs), and how this rainbow-making technology could help autonomous vehicles read signs. The study focuses on a retroreflective material - a thin film that consists of polymer microspheres laid down on the sticky side of a transparent tape.The microspheres are partially embedded in tape, and the parts that protrude form MCIs.