HORIZONTAL ROAD MARKING (VERSIONS) Russian patent published in 2018 - IPC E01F9/524 

FIELD: construction.

SUBSTANCE: light sources, such as car headlights, emit radiation, including that in the form of visible light. Most of the light beams incident directly on the road surface 6 are absorbed. According to the first version, part of all the incident light beams is partially reflected directly from the road marking layer 4 and returns in the reverse direction. In both versions, part of the light beams falls on the projecting part 1. Since the additional layer 8 on the surface of the projecting part 1 is absent, the light beam is partially reflected and, being refracted, passes into the inner volume of the micro glass ball 2. The light beams passed through the micro glass ball 2 are almost completely reflected from the glass interface and an additional layer 8 located on the surface of the micro glass ball 2, which is present on the entire surface of the micro glass ball 2, except for the projecting part 1. Most of these reflected light beams return to the light source.

EFFECT: increasing the light return coefficient of the road marking and its independence from the road marking material colour.

9 cl, 2 dwg