FIELD: physics.
SUBSTANCE: retroreflective coating has a retroreflective layer in which there is an array of retroreflective elements, and a light divergence amplifying layer. The latter is placed in front of the retroreflective layer, has a base and a group of lenses lying on the base, and has local aberration regions formed by the lenses, lying only in the local aberration regions or formed by lenses which differ on optical parameters and on spatial distribution from lenses lying outside the local aberration regions. The coating has a wider divergence range than that of the retroreflective layer.
EFFECT: wider divergence range of light coming out of the coating.
31 cl, 17 dwg
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