Improvements introduced in the manufacture of optical leaves, flexible, that reflect the light in reflex mode (Machine-translation by Google Translate, not legally binding)

摘要

Improvements introduced in the manufacture of optical, flexible sheets that reflect light reflexively, attached to a reflecting surface and give a reflex reflection of light from this surface, which have a layer that returns the light formed by a a large number of small continuous transparent spheres whose rear ends are optically exposed to the return path of the light rays and a solid continuous transparent coating placed thereon, which adapts to the front ends of these spheres and which has a flat front surface, having these spheres have a refractive index that is at least 1.15 times that of the transparent coating. (Machine-translation by Google Translate, not legally binding)