realização de um composto ótico transparente com estrutura celular

    公开(公告)号:BR112012029580A2

    公开(公告)日:2016-08-02

    申请号:BR112012029580

    申请日:2011-05-16

    Abstract: realização de um composto ótico transparente com estrutura celular. a presente invenção refere-se um componente ótico transparente com estrutura celular que compreende uma rede de paredes (106) que forma um conjunto de células (104) justapostas paralelamente a uma superfície do componente. para realizar esse componente, determina-se inicialmente um conjunto irregular de pontos (101, 105) na superfície do componente, cada ponto sendo destinado a formar um centro de uma das células. em seguida, determina-se uma posição e uma orientação de cada parede, de modo que o conjunto das células forme uma divisão de voronoï da superfície do componente. o componente apresenta então um nível de transparência que é compatível com uma utilização ótica ou oftálmica.

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    公开(公告)号:IN4981DEN2012A

    公开(公告)日:2015-10-02

    申请号:IN4981DEN2012

    申请日:2012-06-06

    Applicant: ESSILOR INT

    Abstract: The invention relates to a photochromic optical article with reduced thermal dependency, comprising: (a) a transparent substrate, (b) a saturated photochromic layer having, in the activated state and at a temperature of 20°C, a relative transmission factor of less than 1% in the visible range, and (c) an anti-UV coating of plastic material at least partially covering the saturated photochromic layer, the said anti-UV coating containing at least one agent which absorbs UV radiation (anti-UV agent) and is distributed in a pattern consisting of a multitude of points, each having a surface area of less than 0.15 mm 2, the average distance between two neighbouring points lying between 0.5 and 2 mm and the ratio of the overall surface area of all ethe points to the total surface area of the anti-UV coating being such that the relative transmission factor of the optical article in the visible range in the activated state and at 20°C is at least equal to 5%. The invention also relates to two methods for manufacturing such an optical article.

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    公开(公告)号:IN3912DEN2012A

    公开(公告)日:2015-09-04

    申请号:IN3912DEN2012

    申请日:2012-05-03

    Applicant: ESSILOR INT

    Abstract: Method for producing a plastic film containing a compound absorbing ultraviolet radiation comprising (a) depositing an alcoholic solution of polyvinyl butyral on a transparent plastic support film, (b) evaporating the solvent from the alcoholic solution of polyvinyl butyral so as to form a polyvinyl butyral layer on the transparent support film, (c) printing the polyvinyl butyral layer with an ink absorbing ultraviolet radiation (UV absorber) in a pattern, (d) heating the transparent plastic support film, coated with the printed polyvinyl butyral layer so as to enable at least part of the UV absorber to pass from the polyvinyl butyral layer to the plastic support film, (e) removing the polyvinyl butyral layer, preferably by washing with a suitable solvent. The application also relates to the film obtained by this method and the use of this film for producing a photochromic element with a spatially non-uniform behaviour.

    Photochromic optical article comprising a saturated photochromic coating and a film absorbing UV radiation

    公开(公告)号:AU2010333253B2

    公开(公告)日:2015-02-19

    申请号:AU2010333253

    申请日:2010-10-07

    Applicant: ESSILOR INT

    Abstract: The invention relates to a photochromic optical article with reduced thermal dependency, comprising: (a) a transparent substrate, (b) a saturated photochromic layer having, in the activated state and at a temperature of 20°C, a relative transmission factor of less than 1% in the visible range, and (c) an anti-UV coating of plastic material at least partially covering the saturated photochromic layer, the said anti-UV coating containing at least one agent which absorbs UV radiation (anti-UV agent) and is distributed in a pattern consisting of a multitude of points, each having a surface area of less than 0.15 mm 2, the average distance between two neighbouring points lying between 0.5 and 2 mm and the ratio of the overall surface area of all the points to the total surface area of the anti-UV coating being such that the relative transmission factor of the optical article in the visible range in the activated state and at 20°C is at least equal to 5%. The invention also relates to two methods for manufacturing such an optical article.

    Photochromic optical article comprising a saturated photochromic coating and a film absorbing UV radiation

    公开(公告)号:AU2010333253A1

    公开(公告)日:2012-06-21

    申请号:AU2010333253

    申请日:2010-10-07

    Applicant: ESSILOR INT

    Abstract: The invention relates to a photochromic optical article with reduced thermal dependency, comprising: (a) a transparent substrate, (b) a saturated photochromic layer having, in the activated state and at a temperature of 20°C, a relative transmission factor of less than 1% in the visible range, and (c) an anti-UV coating of plastic material at least partially covering the saturated photochromic layer, the said anti-UV coating containing at least one agent which absorbs UV radiation (anti-UV agent) and is distributed in a pattern consisting of a multitude of points, each having a surface area of less than 0.15 mm 2, the average distance between two neighbouring points lying between 0.5 and 2 mm and the ratio of the overall surface area of all the points to the total surface area of the anti-UV coating being such that the relative transmission factor of the optical article in the visible range in the activated state and at 20°C is at least equal to 5%. The invention also relates to two methods for manufacturing such an optical article.

    57.
    发明专利
    未知

    公开(公告)号:AT535838T

    公开(公告)日:2011-12-15

    申请号:AT06820919

    申请日:2006-07-13

    Applicant: ESSILOR INT

    Abstract: The component has a set of cells (15) juxtaposed along a meshing of a surface of the component. Each cell contains a substance providing particular optical property to the component. Two neighboring cells are separated by a wall (18) extending perpendicular to the surface. Each wall extends between two ends of the wall that corresponds to nodes (N) of the meshing. Some of the walls are not rectilinear to the surface. An independent claim is also included for an optical element obtained by cutting of a transparent optical component.

    58.
    发明专利
    未知

    公开(公告)号:AT520054T

    公开(公告)日:2011-08-15

    申请号:AT05783793

    申请日:2005-06-24

    Applicant: ESSILOR INT

    Abstract: The method involves producing an optical component (10) having a transparent assembly of cells (15) juxtaposed in parallel at a surface of the component. Each cell is hermetically closed. The component is cut along a defined contour on its surface related to a determined shape for a transparent optical unit. The component is drilled for fixing the optical unit on a maintenance support such as a frame. Independent claims are also included for the following: (A) an optical component (B) an ocular glass produced by cutting an optical component.

    ARTICLE OPTIQUE PHOTOCHROME COMPORTANT UN REVETEMENT PHOTOCHROME SATURE ET UN FILM ABSORBANT LE RAYONNEMENT UV

    公开(公告)号:FR2954523A1

    公开(公告)日:2011-06-24

    申请号:FR0959102

    申请日:2009-12-17

    Applicant: ESSILOR INT

    Abstract: L'invention concerne un article optique photochrome à dépendance thermique réduite, comportant : (a) un substrat transparent, (b) une couche photochrome saturée présentant, à l'état activé et à une température de 20°C, un facteur relatif de transmission dans le visible inférieure à 1 %, et (c) un revêtement anti-UV en matière plastique, recouvrant au moins partiellement la couche photochrome saturée, ledit revêtement anti-UV contenant au moins un agent absorbant le rayonnement UV (agent anti-UV) réparti selon un motif constitué d'une multitude de points ayant chacun une surface inférieure à 0,15 mm, la distance moyenne entre deux points voisins étant comprise entre 0,5 et 2 mm et le rapport de la surface globale de l'ensemble des points à la surface totale du revêtement anti-UV étant tel que le facteur relatif de transmission dans le visible de l'article optique à l'état activé et à 20 °C est au moins égal à 5 %. L'invention concerne également deux procédés de fabrication d'un tel article optique.

    60.
    发明专利
    未知

    公开(公告)号:AT496757T

    公开(公告)日:2011-02-15

    申请号:AT08786091

    申请日:2008-07-11

    Abstract: A method sticks onto a curved surface of a substrate a functional film (4) that has a substantially planar initial shape. To this end, the film (4) is retained on a deformable membrane (1) by connecting means (2) that allow portions of said film to slip relative to the membrane when said membrane is deformed. This reduces stresses that are created in the film by the deformation. The method is adapted for applying a functional film to an ophthalmic lens.

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