PROCEDE DE REALISATION D'UN ELEMENT OPTIQUE POLARISANT

    公开(公告)号:FR2897695A1

    公开(公告)日:2007-08-24

    申请号:FR0601612

    申请日:2006-02-23

    Applicant: ESSILOR INT

    Abstract: Une structure en couches polarisante (30) est réalisée sur un support temporaire (31). La structure comprend au moins une couche d'orientation (34) et une couche polarisante (35) à colorants dichroïques, les colorants dichroïques ayant une orientation angulaire déterminée par la couche d'orientation. La structure en couches est séparée du substrat temporaire avant d'être appliquée sur une surface d'un élément optique. L'application de la structure sur l'élément optique peut être effectuée aisément tout en obtenant une qualité compatible avec de nombreuses utilisations de l'élément optique, en particulier des utilisations ophtalmiques.

    32.
    发明专利
    未知

    公开(公告)号:FR2879313B1

    公开(公告)日:2007-04-06

    申请号:FR0413185

    申请日:2004-12-10

    Applicant: ESSILOR INT

    Inventor: BEGON CEDRIC

    Abstract: The inventive method for recording data on an optical lens (2) consists in recording a data-containing source image, in generating the hologram (3) of the image source and in recording said hologram on the lens surface portion ranging from 0.5 mm2 to 15 mm2. The data can be read-out by illuminating said lens by means of a light beam (101) in the hologram area. A read-out image (105, 106) which reproduces the source image and on which data is readable is formed at a distance from the lens. Said lens can be embodied, in particular in the form of an ophthalmic lens.

    APPARATUS FOR CONFORMING A PLANAR FILM ON AN OPTICAL LENS, METHOD FOR FUNCTIONALIZING AN OPTICAL LENS BY MEANS OF SAID APPARATUS, THE OPTICAL LENS SO-OBTAINED

    公开(公告)号:CA2602621A1

    公开(公告)日:2006-10-12

    申请号:CA2602621

    申请日:2006-04-04

    Applicant: ESSILOR INT

    Abstract: The device further comprises: electric, pneumatic/mechanical translators (12) connecting the plug to a pipe support (13); a base plate for fixing the piston by its lower end, and a mechanics for horizontal adjustment of the piston on the plate; a thermal polymerization unit or ultraviolet radiation; and a removable heating unit to control the temperature and the distance applied between film and the unit by an automat, convection and/or radiation of the film. The mechanical device blocks the plate with the piston. The set motion of the plug, chamber and translators are managed by an automat to make the contact between the plug, film plane and the lens. The film holder maintains the film plane and having a holding fixture to place and lock on the piston. The piston is connected by its aspiration chamber to create a depression of pneumatic effect and vertical translatory movement within the chamber. The depression is continuous and controlled by pressure transducer/gauge connected to the automat. The base plate connected to encoders to control the piston with respect to the plug. The translators are under control of a sensor force and/or position encoders (14). The film plane comprises a structural functionality, optics, physics and physico-chemical. The plug has a hardness of 38-64. Independent claims are included for: (1) a method of functionalization by molding, transferring and joining the film plane on an optical lens; and (2) a functionalized optical lens.

    METHOD FOR DETERMINING AN OPTICAL EQUIPMENT COMPRISING AT LEAST ONE OPTICAL LENS AND A SPECTACLE FRAME

    公开(公告)号:CA2934574A1

    公开(公告)日:2015-07-09

    申请号:CA2934574

    申请日:2014-12-30

    Abstract: Method implemented by computer means for determining an optical equipment comprising at least one optical lens and a spectacle frame, the optical lens being adapted to be mounted in the spectacle frame in front of a wearer eye, the method comprising: - a wearer data providing step, during which wearer data relating at least to the wearer's optical requirements, to a wearer's face morphology and to the optical equipment position in respect with the wearer face when said optical equipment is worn by said wearer are provided, - an optical cost function providing step, during which an optical cost function is provided, the optical cost function being related to an optical function of the at least one optical lens when said optical equipment is worn by said wearer, - a light protection cost function providing step, during which a light protection cost function is provided, the light protection cost function being related to at least a spectral irradiance estimation over the wearer eye and/or wearer skin in a peri-orbital zone of the wearer eye under at least a given condition when said optical equipment is worn by said wearer, - an optical equipment determining step, during which the optical equipment that minimizes the difference between a global cost function and a target value of the global cost function is determined, the global cost function being a function of the optical and the light protection cost functions.

    PROCEDE DE FABRICATION D'UNE LENTILLE OPHTALMIQUE

    公开(公告)号:FR3006623A1

    公开(公告)日:2014-12-12

    申请号:FR1355302

    申请日:2013-06-07

    Applicant: ESSILOR INT

    Abstract: L'invention concerne un procédé de fabrication d'une lentille ophtalmique (10) présentant au moins une fonction optique, caractérisé en ce qu'il comporte : - l'étape de fabriquer de manière additive (100) ladite lentille ophtalmique (10), par le dépôt d'une pluralité d'éléments de volume prédéterminés d'au moins un matériau ayant un indice de réfraction prédéterminé, conformément à une enveloppe géométrique cible ; - l'étape de déterminer une enveloppe géométrique réelle au moins une fois au cours de la mise en œuvre de ladite l'étape de fabriquer de manière additive (100) ; et l'étape de déclencher une action correctrice s'il existe dans une zone un écart supérieur à un seuil prédéterminé entre ladite enveloppe géométrique cible et ladite enveloppe géométrique réelle.

    40.
    发明专利
    未知

    公开(公告)号:BRPI0708188A2

    公开(公告)日:2011-05-24

    申请号:BRPI0708188

    申请日:2007-02-21

    Applicant: ESSILOR INT

    Abstract: A polarizing optical element comprises a transparent optical base element and a layered structure that incorporates a polarizing film. The polarizing film is of the dichroic dye type and is oriented uniaxially. The layered structure is bonded to the optical base element by means of a layered structure that includes at least one layer of a pressure-sensitive adhesive. Thanks to the use of pressure-sensitive adhesive, the polarizing film during the bonding operation maintains a high polarization efficiency and an optical quality compatible with many applications of the optical element, especially ophthalmic applications.

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