Optical structures including polyurea

Details Optical structures including polyurea Optical structures including polyurea

C - Chemistry, Metallurgy

08

G

C08G 18/10 (2006.01) C08J 5/18 (2006.01) C09D 175/02 (2006.01) G02B 5/12 (2006.01) G02B 5/124 (2006.01)

Patent

CA 2494609

Optical structures and sheeting that include polyurea and method for forming same are proposed in accordance with aspects of the present invention. One and two-component layers can be used to form the optical structures. The optical structures can include microstructures formed from polyurea. The sheeting can include at least one of cube-corner prisms, open-faced cube-corner prisms, linear prisms, lenticular lenses, moth-eye structures, lenses, Fresnel lens arrays, lenses, and fish-eye lens arrays.

Des aspects de la présente invention concernent une feuille et des structures optiques à base de polyurée, ainsi qu'un procédé de production de cette feuille et de ces structures. Lesdites structures optiques peuvent être formées au moyen de couches à un et à deux composants. Ces structures optiques peuvent comprendre des microstructures composées de polyurée. La feuille peut comprendre au moins un des éléments suivants : prismes en coin de cube, prismes en coin de cube à face ouverte, prismes linéaires, lentilles lenticulaires, structures de type moth-eye, lentilles, mosaïque de lentilles de Fresnel, mini-lentilles et mosaïque de lentilles de type fish-eye.

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