G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 5/128 (2006.01) E01F 9/04 (2006.01)
Patent
CA 2187178
A retroreflective article comprising a monolayer of microspheres (1) partially embedded in and protruding from a binder layer (2) and specular reflector (3) underlying the microspheres (1), wherein the monolayer of microspheres (1) comprises a mixture of a first class of microspheres having a first refractive index and a second class of microspheres having a second refractive index wherein the second refractive index is higher than the first refractive index. As a result, the sheeting exhibits superior observation angle angularity.
Un article rétroréfléchissant comprend une couche monomoléculaire de microbilles (1) partiellement encastrée dans une couche de liant (2) et un réflecteur spéculaire (3) se trouvant à la base des microbilles (1). La couche monomoléculaire de microbilles (1) comprend un mélange d'une première classe de microbilles possédant un premier indice de réfraction, et d'une seconde classe de microbilles possédant un second indice de réfraction, ce second indice de réfraction étant supérieur au premier. Par conséquent, le revêtement présente un caractère angulaire supérieur selon l'angle d'observation.
Minnesota Mining And Manufacturing Company
Smart & Biggar
LandOfFree
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