Abstract:
The optical article of the invention includes, on at least one of its main surfaces, an outer hydrophobic and/or oleophobic coating and a dual-layer temporary coating in direct contact with the outer hydrophobic and/or oleophobic coating, characterised in that the dual-layer temporary coating includes a first layer in direct contact with the outer hydrophobic and/or oleophobic coating, selected from halogenated olefin polymers and polyurethanes, and a second layer deposited on the first one, of a polymer or polymer mixture acting as a water barrier. The invention can be used for edging ophthalmic lenses.
Abstract:
The invention relates to a method for processing an ophthalmic lens coated on at least one of its main surfaces with an outer hydrophobic and/or oleophobic coating, and for making it capable of undergoing an edging process, wherein said method comprises the step of processing the peripheral area of said coated main surface, which results in a removal of the hydrophobic and/or oleophobic coating and/or in a modification of said coating that lowers its hydrophobic characteristic, and the step of depositing a temporary polymeric coating on said main surface of the lens in order to cover at least partially the hydrophobic and/or oleophobic coating and the peripheral area processed during the previous step, in order to provide an ophthalmic lens having on at least one of its main surfaces an outer hydrophobic and/or oleophobic coating and, in direct contact with said hydrophobic and/or oleophobic coating, a temporary polymeric coating adhering to the surface of the coated lens. The invention also relates to an edging method and to a lens capable of undergoing an edging process.
Abstract:
The invention relates to a method for treating an optical lens coated on at least one of its main surfaces by an external hydrophobic and/or oleophobic coating, in order to render it suitable for edging. Said method comprises a step for the deposition, on at least one part of the external hydrophobic and/or oleophobic coating, of a temporary adhesive composite film, said adhesive composite film comprising a pre-shaped film, the main surface of which is coated with a pressure-sensitive adhesive layer, the adhesive layer being in direct contact with the hydrophobic and/or oleophobic coating, the elasticity during traction E' module of the pre-shaped film being higher than, or equal to, 4200 MPa, and the tensile strength of the assembly consisting of said adhesive film stuck to a sample of polycarbonate coated with a layer of fluorinated silane, measured during traction in conformance with the norm of determination of shear strength NF EN 1465, being higher than, or equal to, 0.05 MPa. The invention also relates to an edging method and to a lens suitable for edging.
Abstract translation:本发明涉及一种通过外部疏水和/或疏油涂层处理涂覆在其主表面的至少一个表面上的光学透镜的方法,以使其适合于边缘化。 所述方法包括在临时粘合剂复合膜的外部疏水和/或疏油涂层的至少一部分上沉积的步骤,所述粘合剂复合膜包括预成型膜,其主表面涂覆有 压敏粘合剂层,粘合剂层与疏水和/或疏油涂层直接接触,预成型膜的牵引E'模块中的弹性高于或等于4200MPa,拉伸强度 该组件由粘合到涂覆有氟化硅烷层的聚碳酸酯样品组成的组件的强度,其在牵引期间测量,其符合剪切强度NF EN 1465的测定标准,高于或等于0.05MPa 。 本发明还涉及一种边缘方法和一种适用于边缘的镜片。
Abstract:
processos de produção de aditivo para lente oftálmica transparente. apresenta-se no presente documento um método para a produção de uma lente oftálmica tridimensional com o uso da produção de aditivo. o método inclui constituir voxels de uma ou mais composições, em que pelo menos uma das composições compreende um ou mais pré-polímeros ou polímeros, e induzir a conectividade entre os voxels criando, desse modo, um ou mais elementos incrementais, repetir as etapas de constituição, e realizar um pós-tratamento final. também é apresentada no presente documento uma lente oftálmica obtida por este método. a lente tem boa homogeneidade e claridade óptica, encolhimento reduzido e precisão geométrica aprimorada e propriedades termomecânicas.
Abstract:
The invention relates to a method for treating an optical lens coated on at least one of its main surfaces by an external hydrophobic and/or oleophobic coating, in order to render it suitable for edging. Said method comprises a step for the deposition, on at least one part of the external hydrophobic and/or oleophobic coating, of a temporary adhesive composite film, said adhesive composite film comprising a pre-shaped film, the main surface of which is coated with a pressure-sensitive adhesive layer, the adhesive layer being in direct contact with the hydrophobic and/or oleophobic coating, the elasticity during traction E' module of the pre-shaped film being higher than, or equal to, 4200 MPa, and the tensile strength of the assembly consisting of said adhesive film stuck to a sample of polycarbonate coated with a layer of fluorinated silane, measured during traction in conformance with the norm of determination of shear strength NF EN 1465, being higher than, or equal to, 0.05 MPa. The invention also relates to an edging method and to a lens suitable for edging.
Abstract:
L'article d'optique comporte sur au moins une de ses surfaces principales un revêtement externe hydrophobe et/ou oléophobe et en contact direct avec le revêtement externe hydrophobe et/ou oléophobe un revêtement temporaire bicouche caractérisé en ce que le revêtement temporaire bicouche comprend une première couche, en contact direct avec le revêtement externe hydrophobe et/ou oléophobe choisi parmi les polymères d'oléfines halogénées et les polyuréthanes et une deuxième couche, déposée sur la première, d'un polymère ou mélange de polymères faisant barrière à l'eau.. Application au débordage des lentilles ophtalmiques.
Abstract:
Disclosed is an optical article comprising on at least one of its main surfaces an outer hydrophobic and/or oleophobic coating and in direct contact with the outer hydrophobic and/or oleophobic coating a dual-layer temporary coating, wherein the dual-layer temporary coating is removable and comprises: a first layer, in direct contact with the outer hydrophobic and/or oleophobic coating comprising halogenated olefin polymers or polyurethanes; and a water barrier second layer comprising a polymer or polymer mixture acting as a water barrier deposited on the first layer comprising at least one vinyl polymer, polyepoxide, polyepisulfide, polyester, polyether, polyester-ether, poly(meth)acrylate, polythio(meth)acrylate, styrene polymer, or cellulosic polymer.
Abstract:
L'invention concerne un procédé de traitement d'une lentille optique revêtue sur au moins une de ses surfaces principales d'un revêtement externe hydrophobe et/ou oléophobe, destiné à la rendre apte au débordage, comprenant une étape de dépôt sur au moins une partie du revêtement externe hydrophobe et/ou oléophobe d'un film composite adhésif temporaire, ledit film composite adhésif comprenant un film préformé dont une surface principale est revêtue d'une couche d'adhésif sensible à la pression, ladite couche d'adhésif étant en contact direct avec le revêtement hydrophobe et/ou oléophobe, le module d'élasticité en traction E' du film préformé étant supérieur ou égal à 4200 MPa, et la contrainte à la rupture de l'assemblage constitué dudit film adhésif collé à une éprouvette de polycarbonate revêtue d'une couche de silane fluoré, mesurée en traction conformément à la norme de détermination de la résistance au cisaillement NF EN 1465, étant supérieure ou égale à 0,05 MPa. L'invention concerne également un procédé de débordage et une lentille apte au débordage.
Abstract:
L'article d'optique comporte sur au moins une de ses surfaces principales un revêtement externe hydrophobe et/ou oléophobe et en contact direct avec le revêtement externe hydrophobe et/ou oléophobe un revêtement temporaire bicouche caractérisé en ce que le revêtement temporaire bicouche comprend une première couche, en contact direct avec le revêtement externe hydrophobe et/ou oléophobe choisi parmi les polymères d'oléfines halogénées et les polyuréthanes et une deuxième couche, déposée sur la première, d'un polymère ou mélange de polymères faisant barrière à l'eau.. Application au débordage des lentilles ophtalmiques.