Highly canted retroreflective cube corner article

Details Highly canted retroreflective cube corner article Highly canted retroreflective cube corner article

G - Physics

02

B

G02B 5/124 (2006.01)

Patent

CA 2269478

A retroreflective article that exhibits high retroreflective efficiency in response to light incident on the sheeting at high angles of incidence is disclosed. A retroreflective article includes a body portion having a base surface and a structured surface opposite the base surface. The structured surface includes a plurality of retroreflective cube corner elements defined by two intersecting groove sets. Each cube corner element has three tetragonal optically reflective faces that intersect to define a cube corner apex and two tetragonal non-optical faces that intersect along an edge. The symmetry axes of the cube corner elements are substantially parallel.

L'invention concerne un article rétroréfléchissant présentant une forte capacité de rétroréflexion en réponse à une lumière frappant le revêtement à des angles d'incidence élevés. Ledit article rétroréfléchissant comprend une partie corps comportant une surface de base et une surface structurée opposée à la surface de base. La surface structurée comprend plusieurs éléments en coin de cube rétroréfléchissants définis par deux séries de rainures à intersections. Chaque élément en coin de cube présente trois faces tétragonales optiquement réfléchissantes qui se coupent pour définir un sommet de coin de cube, ainsi que deux faces tétragonales non optiques se coupant le long d'une arête. Les axes de symétrie des éléments en coin de cube sont sensiblement parallèles.

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