Lente oftálmica antirreflectante y su procedimiento de fabricación

Artículo óptico que comprende en orden: (a) un sustrato transparente de cristal orgánico, de preferencia un sustrato de lente oftálmica, (b) una capa adhesiva que recubre al menos una de las caras del sustrato transparente, (c) una película transparente de polímero termoplástico fijada sobre el sustrato transparente por medio de la capa adhesiva, (d) un revestimiento duro anti-abrasión que recubre la película transparente de polímero termoplástico, y (e) un revestimiento antirreflectante multicapas formado de una alternancia de capas minerales de fuerte y débil índice de refracción. caracterizado por que el polímero termoplástico que forma la película transparente es elegido entre el triacetato de celulosa TAC y el poli(etilen tereftalato) PET; y la capa adhesiva es una capa de adhesivo sensible a la presión o una capa de adhesivo termofusible. The optical article comprises a transparent substrate made of organic glass, an adhesive layer covering one of faces of the transparent substrate, a transparent film that is made of thermoplastic polymer and is fixed on the transparent substrate through the adhesive layer, an anti-abrasion hard coating covering the transparent film, and a multilayer anti-reflection coating formed of alternating mineral layers with high and low refractive index. The adhesive layer is a pressure sensitive adhesive layer or a hot melt adhesive layer, and has a thickness of 15-30 mu m. The optical article comprises a transparent substrate made of organic glass, an adhesive layer covering one of faces of the transparent substrate, a transparent film that is made of thermoplastic polymer and is fixed on the transparent substrate through the adhesive layer, an anti-abrasion hard coating covering the transparent film, and a multilayer anti-reflection coating formed of alternating mineral layers with high and low refractive index. The adhesive layer is a pressure sensitive adhesive layer or a hot melt adhesive layer, and has a thickness of 15-30 mu m. The thermoplastic polymer has a glass transition temperature of 70-200[deg] C measured by dynamic mechanical analysis. The transparent film has a thickness of 60-100 mu m. The anti-abrasion hard coating has a thickness of 2-10 mu m. An independent claim is included for a process for the fabrication of an optical article.