Because the reflective vest is made of reflective (fluorescent) material. Reflective vests in a variety of light conditions can play a warning and security role of clothing.
It is typically composed of a brightly colored substrate (fluorescent) material and a reflective (retroreflective reflective material).
Reflective material is the use of glass or prism-type material, making the incident light along the same direction to return.
With glass beads made of reflective clothing, reflective vest decoration, plus fluorescent background, than no [plus] reflective material reflective clothing reflective vest reflective work clothes in the light eye-catching hundreds of times.
Fluorescent reflex reflex effect is more intense, so that the wearer both in the day or night, in the light of the irradiation, are with the surrounding environment to form a strong contrast.
Visual distance 800m distance by the driver found, and thus play a role in security and protection.
Reflective materials are widely used in construction, traffic police, traffic coordinators, sanitation workers, logistics courier, volunteer workers, highway railway officers, road construction workers occupational safety uniforms, played an excellent protective effect.
Due to the popularity and consumption of reflective materials, the United States in the past decade, the number of car accidents at night fell by 40%.
In the European and American countries of the various provisions or publicity have stressed the use of reflective materials, such as rain, fog, snow, night and other line of sight to distinguish the ability of the environment, the elderly, children go out, must wear or wear reflective material with a sign or clothing