Research on the law of reflection coefficient of reflective film of traffic sign based on Angle

Yu Meng,Muyu Qi,Cheng Cheng,Ye Yang,Dan Li,Yufeng Shi,Mengru Sun,J Zhu

doi:10.1051/matecconf/202235501007

Abstract

In this paper, a large number of digital printing reflective film retroreflectivity measurement. Based on the multi-angle test of the reflective film of the mainstream manufacturers in the market, the reverse reflection coefficient of the digital printing reflective film was obtained. Through the curve fitting of the measured values of the backreflection coefficient under different measuring angles by using the scatter plot, the variation law of the luminosity of the digital printing reflective film with incident Angle and observation Angle was obtained. The variation law of backreflection coefficient explored in this paper has certain significance to the application guidance of digital printing reflective film for traffic signs.

Highlights

Reverse reflection, known as reflection, reflection, regression reflection, recovery reflection, directional reflection or reverse reflection, is a reflection of the reflected light from the opposite direction of the near incident light
The reverse reflection coefficient of traffic signs is tested according to the method specified in "The Common Plane
Different rotation angles can be selected for testing according to the requirements of the manufacturer or the entrusting party

Summary

Introduction

Known as reflection, reflection, regression reflection, recovery reflection, directional reflection or reverse reflection, is a reflection of the reflected light from the opposite direction of the near incident light. This property can be maintained when the direction of the incident ray varies over a large area[1] [2]. © The Authors, published by EDP Sciences. Inspired by the cat's eyes, people began to study reflective science, in order to use it to reflect the lights of cars and solve the problem of traffic sign recognition[4]

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Curve analysis