PROCEDE DE FABRICATION D'AU MOINS UNE LENTILLE OPHTALMIQUE

    公开(公告)号:FR3008196A1

    公开(公告)日:2015-01-09

    申请号:FR1356715

    申请日:2013-07-08

    Applicant: ESSILOR INT

    Abstract: L'invention concerne un procédé de fabrication d'une lentille ophtalmique présentant au moins une fonction optique, comportant l'étape (200) de fournir un système optique de départ de la lentille, présentant une fonction optique de base et l'étape (500) de fabriquer de manière additive un élément optique complémentaire de la lentille, par le dépôt d'une pluralité d'éléments de volume prédéterminés d'au moins un matériau ayant un indice de réfraction prédéterminé, directement sur au moins une des face avant et face arrière du système optique de départ ; avec l'étape de fabrication additive qui comporte l'étape de déterminer une consigne de fabrication de l'élément optique complémentaire à partir de caractéristiques de ladite au moins une fonction optique à fournir à la lentille, de caractéristiques de ladite au moins une fonction optique de base et de caractéristiques géométriques du système optique de départ et de l'indice de réfraction prédéterminé du matériau.

    METHOD OF DETERMINING OPTICAL PARAMETERS OF AN OPTHALMIC LENS

    公开(公告)号:CA2891559A1

    公开(公告)日:2014-05-22

    申请号:CA2891559

    申请日:2013-11-13

    Applicant: ESSILOR INT

    Abstract: Method for determining the values of a set of n optical parameters (P1, P2,..., Pn) of an ophthalmic lens, n being an integer greater than or equal to 1, the method comprising: - an nominal ophthalmic lens data providing step, - an ophthalmic lens providing step, - an optical surface measuring step, - a surface errors determining step during which a set of m surface error parameters (a1, a2,..., am) is determined, m being an integer greater than or equal to 1, - an optical parameter determining step during which each optical parameter of the set of optical parameters is determined by: (I) with Pi the value of the ith optical parameter of the manufactured optical lens, Pi,0 the value of the ith optical parameter of the nominal optical lens (II), the value of the derivative of Pi with respect to the jth surface error parameter aj on the nominal surface and ?aj the value of the jth surface error parameter, and Ai a combination of terms of order greater or equal to 2 for each Pi.

    Method of manufacturing an optical system

    公开(公告)号:AU2006277686B2

    公开(公告)日:2012-03-15

    申请号:AU2006277686

    申请日:2006-08-01

    Applicant: ESSILOR INT

    Abstract: The invention relates to a method of calculating an optical system (OS), the optical system (OS) being identified by a function (OF), the optical system (OS) comprising a first part (Fl) defined by a first equation (EFl) and a second part (F2) defined by a second equation (EF2), the method comprising: - a generating step (GEN), in which a virtual optical system (VOS) is used to generate a virtual function (VOF); - a modification step (MOD), in which the virtual function (VOF) is modified so as obtain the function (OF); - a calculation step (CAL), in which the second equation (EF2) is calculated from the function (OF), and the first equation (EFl). The invention relates also to a method of manufacturing an optical system (OS).

    45.
    发明专利
    未知

    公开(公告)号:BRPI0614811A2

    公开(公告)日:2009-08-04

    申请号:BRPI0614811

    申请日:2006-08-01

    Applicant: ESSILOR INT

    Abstract: The invention relates to a method of manufacturing an optical system (OS), the optical system (OS) being identified by a function (OF), the optical system (OS) comprising a first part (F1) defined by a first equation (EF1) and a second part (F2) defined by a second equation (EF2), the method comprising: - a calculation step (CAL), in which the second equation EF2 is calculated from the function OF, and the first equation EF1; - a first manufacturing step (M1), in which a semi-finished optical system (SFOS) comprising the first part (F1) is manufactured so as to obtain a manufactured semi-finished optical system (MSFOS); and - a second manufacturing step (M2), in which the manufactured semi-finished optical system (MSFOS) is manufactured so as to be further provided with a second part (F2) defined by the second equation (EF2) and to obtain the optical system (OS).

    PROCEDE DE DETERMINATION D'UNE LENTILLE OPHTALMIQUE.

    公开(公告)号:FR2910645A1

    公开(公告)日:2008-06-27

    申请号:FR0611252

    申请日:2006-12-22

    Applicant: ESSILOR INT

    Abstract: Un procédé de détermination par optimisation d'une lentille ophtalmique comprenant les étapes de:- mesure de paramètres représentatifs du comportement oeil-tête du porteur ;- détermination d'une zone centrale sur la lentille dont le diamètre (Dc) dépend des paramètres représentatifs du comportement oeil-tête mesurés ;- détermination d'une zone périphérique sur la lentille ;- optimisation de la lentille dans les conditions du porté en appliquant des valeurs cibles de puissance et d'astigmatisme dans la zone centrale et des valeurs cibles d'un paramètre autre que la puissance porteur dans la zone périphérique pour des directions de regard données.L'invention permet de réduire l'épaisseur de la lentille ou d'optimiser la vision périphérique du porteur.

    Method of manufacturing an optical system

    公开(公告)号:AU2006277686A1

    公开(公告)日:2007-02-15

    申请号:AU2006277686

    申请日:2006-08-01

    Applicant: ESSILOR INT

    Abstract: The invention relates to a method of manufacturing an optical system (OS), the optical system (OS) being identified by a function (OF), the optical system (OS) comprising a first part (F1) defined by a first equation (EF1) and a second part (F2) defined by a second equation (EF2), the method comprising: - a calculation step (CAL), in which the second equation EF2 is calculated from the function OF, and the first equation EF1; - a first manufacturing step (M1), in which a semi-finished optical system (SFOS) comprising the first part (F1) is manufactured so as to obtain a manufactured semi-finished optical system (MSFOS); and - a second manufacturing step (M2), in which the manufactured semi-finished optical system (MSFOS) is manufactured so as to be further provided with a second part (F2) defined by the second equation (EF2) and to obtain the optical system (OS).

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