Abstract:
The invention concerns a process for measuring and/or controlling a polishing process of an ophthalmic element (1) comprising the steps of -manufacturing at least two cavities (2, 3) on the surface of the element to be polished, the depth of the first cavity (2) being smaller than the depth of the second cavity (3) -operating the polishing process -considering the element (1), in order to check that the first cavity (2) is suppressed and that the second cavity (3) is present.
Abstract:
The invention concerns a process for measuring and/or controlling a polishing process of an ophthalmic element (1) comprising the steps of -manufacturing at least two cavities (2, 3) on the surface of the element to be polished, the depth of the first cavity (2) being smaller than the depth of the second cavity (3) -operating the polishing process -considering the element (1), in order to check that the first cavity (2) is suppressed and that the second cavity (3) is present.
Abstract:
L'invention concerne un procédé de surfaçage d'une surface d'un verre de lunettes, comportant une étape de détermination d'une vitesse de rotation (Vrot) fixe dudit verre à partir de caractéristiques géométriques de ladite surface, caractérisé en ce que l'étape de détermination de la vitesse de rotation (Vrot) comporte les étapes suivantes : générer (102) à partir des caractéristiques géométriques de ladite surface (12) un fichier de valeurs géométriques d'altitude de ladite surface, lequel fichier est centré sur une valeur géométrique d'altitude nulle en un point de référence prédéterminé; déterminer (103) une valeur représentative de la plus grande différence (MaxHk) de valeurs géométriques d'altitude sur ladite surface; déduire (107) la vitesse de rotation (Vrot) de ladite valeur de la plus grande différence (MaxHk) de valeurs géométriques d'altitude sur ladite surface et d'une valeur géométrique de cylindre en un point prédéterminé de contrôle de la vision de loin.
Abstract:
The invention concerns an electrowetting optical device comprising a chamber (207) comprising first and second immiscible liquids (208, 210) contacting each other at a liquid- liquid interface (212), said first liquid (208) being an insulating liquid and said second liquid (210) being a conducting liquid; a first electrode (202) insulated from said first and second liquids by an insulating layer (222); and a plurality of second electrodes (214, 216) in contact with said second liquid, wherein said second electrodes are arranged to receive independent voltages for moving different parts of said liquid-liquid interface by electrowetting.
Abstract:
The invention concerns an electrowetting optical device comprising a chamber (207) comprising first and second immiscible liquids (208, 210) contacting each other at a liquid- liquid interface (212), said first liquid (208) being an insulating liquid and said second liquid (210) being a conducting liquid; a first electrode (202) insulated from said first and second liquids by an insulating layer (222); and a plurality of second electrodes (214, 216) in contact with said second liquid, wherein said second electrodes are arranged to receive independent voltages for moving different parts of said liquid-liquid interface by electrowetting.