PROGRESSIVE OPHTHALMIC LENS
    11.
    发明专利

    公开(公告)号:IN8611CHN2013A

    公开(公告)日:2015-08-21

    申请号:IN8611CHN2013

    申请日:2013-10-25

    Applicant: ESSILOR INT

    Abstract: The invention relates to a progressive ophthalmic lens comprising a front surface and a rear surface each surface having in each point an altitude a mean sphere value and a cylinder value the front surface of the lens comprising: a far vision zone having a far vision reference point; a near vision zone having a near vision reference point; a main meridian wherein the front surface is regressive and has: a sphere gradient normalized value of less than 7.50.10 mm at any point in a central portion of the lens including a portion of the main meridian (32) the far vision reference point (FV) and the near vision reference point (NV); a cylinder gradient normalized value of less than 1.45 mm at any point in the central portion of the lens.

    OPHTHALMIC LENS
    12.
    发明专利

    公开(公告)号:AU2021382388B2

    公开(公告)日:2025-03-06

    申请号:AU2021382388

    申请日:2021-11-22

    Applicant: ESSILOR INT

    Abstract: Method implemented by computer means for determining a progression length (LP) of an ophthalmic lens, comprising the following steps: - providing an addition value Add (21), - providing a model (22), the model linking an addition value Add with a progression length (LP), - based on the model and on the provided addition value, determining the progression length (23).

    PROCEDE DE DETERMINATION D'UNE DEFINITION GEOMETRIQUE D'UN EQUIPEMENT OPTIQUE PERSONNALISE

    公开(公告)号:FR3016052A1

    公开(公告)日:2015-07-03

    申请号:FR1450019

    申请日:2014-01-02

    Applicant: ESSILOR INT

    Abstract: L'invention concerne un procédé de détermination d'une définition géométrique d'un équipement optique personnalisé adapté à son porteur, comprenant au moins une définition géométrique d'une monture personnalisée de cet équipement personnalisé, selon lequel la définition géométrique de ladite monture personnalisée est déterminée en fonction d'au moins un paramètre géométrique de personnalisation (Pperso) de la monture et d'une monture de référence (10) choisie par le porteur, la valeur dudit au moins un paramètre géométrique de personnalisation (Pperso) de la monture étant déterminée à partir de l'acquisition de données relatives à au moins une grandeur morphologique de la tête (TS) du porteur, de telle sorte que la monture personnalisée soit ajustée conformément à au moins un critère d'ajustage de personnalisation de la géométrie de la monture par rapport à la grandeur morphologie de la tête (TS) du porteur.

    PROCEDE DE DETERMINATION D'AU MOINS UN PARAMETRE GEOMETRIQUE D'UNE MONTURE PERSONNALISEE DE LUNETTES ET PROCEDE DE DETERMINATION DE LA MONTURE PERSONNALISEE ASSOCIE

    公开(公告)号:FR3016051A1

    公开(公告)日:2015-07-03

    申请号:FR1450018

    申请日:2014-01-02

    Applicant: ESSILOR INT

    Inventor: REGO CARLOS

    Abstract: L'invention concerne un procédé de détermination d'une valeur d'au moins un paramètre géométrique de personnalisation d'une monture personnalisée de lunettes adaptée à la tête de son porteur, comportant les étapes suivantes : a) identifier (100) une monture de référence, b) déterminer (200) la valeur d'au moins un paramètre géométrique de référence Préf sur ladite monture de référence, c) placer (300) en position d'utilisation ladite monture de référence sur la tête du porteur, d) dans la configuration de l'étape c), déterminer (400) la valeur d'au moins un paramètre géométrico-morphologique de référence PGMréf lié à la position relative de ladite monture de référence par rapport à la tête du porteur, e) à partir des valeurs du paramètre géométrico-morphologique de référence PGMréf déterminé à l'étape d) et du paramètre géométrique de référence Préf déterminé à l'étape b), déterminer (500) au moins une valeur d'au moins un paramètre géométrique de personnalisation Pperso de ladite monture personnalisée.

    Methods for determining a progressive ophthalmic lens and a set of semi finished lens blanks

    公开(公告)号:AU2012351474A1

    公开(公告)日:2014-06-12

    申请号:AU2012351474

    申请日:2012-12-17

    Applicant: ESSILOR INT

    Abstract: The invention relates to a method for determining a progressive ophthalmic lens, comprising: - determining a first intermediate value of regression (d1) as the strongest regression that can be applied on the front surface of the lens while keeping a mean sphere value in at least a portion of the lower part of the rear surface of the lens less or equal to a first predetermined value (V1); - determining a second intermediate value of regression (d2) as the strongest regression that can be applied on the front surface of the lens while keeping a mean sphere value in at least a portion of the lower part of the front surface of the lens superior or equal to a second predetermined value (V2); - determining a third intermediate value of regression (d3) as the strongest regression that can be applied on the front surface of the lens while keeping an addition on the rear surface of the lens less or equal to a third predetermined value (V3); - determining a value of regression (d) for the front surface as the maximum value among the first, second and third intermediate values of regression.

    OPTICAL LENS
    17.
    发明专利

    公开(公告)号:SG11202103846PA

    公开(公告)日:2021-05-28

    申请号:SG11202103846P

    申请日:2019-10-16

    Applicant: ESSILOR INT

    Abstract: Method implemented by computer means for determining a lens element adapted for a wearer, the method comprising:- providing lens data indicating at least a shape of the lens element to be determined, the shape of the lens element corresponding to a shape of the holder and to at least a shape of the optical elements of the lens element, the shape of the optical elements being associated with a targeted optical function;- providing a transfer law associated with a coating process of a lens element comprising the optical elements, the coating process being associated with the coating element, the transfer law corresponding to transformations to apply to the shape of the surface of the lens element comprising the optical elements for compensating modifications of the targeted optical function of said optical elements induced by the coating process; and- determining the lens element based at least on the lens data and the transfer law.

    A METHOD FOR DETERMINING A SINGLE VISION OPHTHALMIC LENS

    公开(公告)号:CA3095519A1

    公开(公告)日:2019-10-03

    申请号:CA3095519

    申请日:2019-03-28

    Applicant: ESSILOR INT

    Abstract: A method implemented by computer means for determining a single vision ophthalmic lens, the single vision ophthalmic lens being adapted to a wearer, the method comprises: - a wearer prescription data providing step during which wearer prescription data indicative at least of the prescribed optical power of the wearer are provided, - a wearing data providing step during which wearing data indicative of the wearing parameters of the single vision ophthalmic lens by the wearer are provided, - a single vision ophthalmic lens determining step during which the single vision ophthalmic lens is determined so that in wearing conditions corresponding to the wearing parameters, the single vision ophthalmic lens provides to the wearer the prescribed optical power in at least a first gazing direction when gazing at a first distance and a second gazing direction when gazing at a second distance, wherein the first and second distances are different and the first and second gazing directions are different.

    Method for determining a surface of a face of an optical lens adapted to a spectacle frame

    公开(公告)号:AU2014280084B2

    公开(公告)日:2018-08-16

    申请号:AU2014280084

    申请日:2014-06-13

    Applicant: ESSILOR INT

    Abstract: Method for determining a surface of a face of an optical lens to be mounted to a spectacle frame, the method comprising: - a contour data providing step (SI), during which contour data representing a contour of the spectacle frame is provided, - a target curvature data providing step (S2) during which target curvature data representing the target curvature of the surface to be determined over an evaluation zone of said surface is provided, - an optical surface determining step (S3), during which a surface is determined so as to minimize: o the difference between the target curvature and average curvature of the surface over the evaluation zone, and o the difference between the contour of the spectacle frame and the periphery contour of the surface, the periphery contour of the surface corresponding to the contour of the surface to be determined of the optical lens after the optical lens has been edged to be mounted in the spectacle frame.

    PROGRESSIVE OPHTHALMIC LENS
    20.
    发明专利

    公开(公告)号:CA2830638C

    公开(公告)日:2018-07-24

    申请号:CA2830638

    申请日:2012-03-22

    Applicant: ESSILOR INT

    Abstract: The invention relates to a progressive ophthalmic lens comprising a front surface and a rear surface, each surface having in each point an altitude, a mean sphere value and a cylinder value, the front surface of the lens comprising: - a far vision zone having a far vision reference point; - a near vision zone having a near vision reference point; - a main meridian, wherein the front surface is regressive and has: - a sphere gradient normalized value of less than 7.50.10-1 mm-1 at any point in a central portion of the lens including a portion of the main meridian (32), the far vision reference point (FV) and the near vision reference point (NV); - a cylinder gradient normalized value of less than 1.45 mm-1 at any point in the central portion of the lens.

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