Method of imaging in crystalline colloidal arrays

C - Chemistry – Metallurgy – 30 – B

Patent

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C30B 5/00 (2006.01) G02B 5/18 (2006.01) G07D 7/00 (2006.01) G07D 7/12 (2006.01)

Patent

CA 2709299

A method of producing an image in a crystalline colloidal array is disclosed. The method includes providing an ordered array of particles received within a curable matrix composition; curing a first portion of the matrix composition, wherein the first cured portion diffracts radiation at a first wavelength; curing another portion of the matrix composition, wherein the other cured portion diffracts radiation at another wavelength; and exposing the array to radiation to exhibit an image. Also a method for producing a multicolor image in a stack of crystalline, colloidal arrays.

L'invention concerne un procédé de production d'une image dans un ensemble colloïdal cristallin. Le procédé comprend les étapes qui consistent à prévoir un ensemble ordonné de particules reçues dans une composition de matrice durcissable, à durcir une première partie de la composition de matrice, la première partie durcie diffractant le rayonnement à une première longueur d'onde, à durcir une autre partie de la composition de matrice, l'autre partie durcie diffractant le rayonnement à une autre longueur d'onde, et à exposer l'ensemble à un rayonnement pour faire apparaître une image. L'invention concerne également un procédé de production d'une image polychrome dans une pile d'ensembles colloïdaux cristallins.

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