Hexagonal cube corner retroreflective article

Details Hexagonal cube corner retroreflective article Hexagonal cube corner retroreflective article

G - Physics

02

B

G02B 5/124 (2006.01) E01F 9/015 (2006.01)

Patent

CA 2761593

Provided is a hexagonal corner cube retroreflective article having excellent observation-angle characteristics. Said article comprises an aggregation of many hexagonal corner cube retroreflective elements, each of which is characterized in that at least one reflective surface (surface a, surface b, and/or surface c) is partitioned, by a line segment (EF, FD, and/or DE) connecting vertices (E, F, and/or D) that constitute said reflective surface, into a pair comprising an upper secondary reflective surface (surface a1, surface b1, and/or surface c1) and a lower secondary reflective surface (surface a2, surface b2, and/or surface c2). Each hexagonal corner cube retroreflective element is further characterized in that the two secondary reflective surfaces that constitute the aforementioned pair of secondary reflective surfaces are not in the same plane.

L'invention porte sur un article rétroréfléchissant à prisme hexagonal ayant d'excellentes caractéristiques d'angle d'observation. Ledit article comprend une agrégation de nombreux éléments rétroréfléchissants à prisme hexagonal, qui sont chacun caractérisés en ce qu'au moins une surface réfléchissante (surface a, surface b et/ou surface c) est séparée, par un segment de ligne (EF, FD et/ou DE) reliant des sommets (E, F et/ou D) qui constituent ladite surface réfléchissante, en une paire comprenant une surface réfléchissante secondaire supérieure (surface a1, surface b1 et/ou surface c1) et une surface réfléchissante secondaire inférieure (surface a2, surface b2 et/ou surface c2). Chaque élément rétroréfléchissant à prisme hexagonal est en outre caractérisé en ce que les deux surfaces réfléchissantes secondaires qui constituent la paire mentionnée ci-dessus de surfaces réfléchissantes secondaires ne sont pas dans le même plan.

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