Incorporating photochromic molecules in light transmissible...

Details Incorporating photochromic molecules in light transmissible... Incorporating photochromic molecules in light transmissible...

G - Physics

02

B

G02B 5/23 (2006.01) G02B 1/00 (2006.01) G02C 7/10 (2006.01)

Patent

CA 2207034

A light-transmissible article formed from a polymeric material, which article includes at least one photochromic dye; and a compatible light absorbing material distributed on or within the article; the combination of photochromic dye and compatible light absorbing material is such that the depth of darkening upon activation of photochromic dye is rendered substantially uniform regardless of variations in length, thickness or local changes of surface shape.

Objet transparent formé à partir d'un matériau polymère qui comprend au moins un colorant photochrome et un matériau photoabsorbant compatible réparti sur ou à l'intérieur de l'objet. La combinaison du colorant photochrome et du matériau photoabsorbant compatible fait que l'assombrissement résultant de l'activation du colorant photochrome est pratiquement uniforme quelles que soient les variations de longueur et d'épaisseur ou les modifications locales dans la configuration de la superficie.

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