A process for determining a pair of progressive ophthalmic lenses

    公开(公告)号:AU2013283260A1

    公开(公告)日:2014-11-27

    申请号:AU2013283260

    申请日:2013-06-28

    Applicant: ESSILOR INT

    Abstract: The process comprises: determining prescribed far vision mean power and addition for each lens of the pair; determining laterality of a wearer; defining a temporal side and a nasal side on each lens of the pair; defining, on each lens being worn and for each gaze direction, a refractive power and a module of resulting astigmatism, each gaze direction corresponding to a lowering angle and to an azimuth angle; defining a proximate vision gaze direction for each lens of the pair; defining, for each lens of the pair, a temporal half-width field of refractive power as the angular distance, at constant lowering angle, between the proximate vision gaze direction and a gaze direction on the temporal side of the lens where the refractive power reaches the value of the prescribed far vision mean power plus three quarters of the prescribed addition; defining, for each lens of the pair, a nasal half-width field of refractive power as the angular distance, at constant lowering angle, between the proximate vision gaze direction and a gaze direction on the nasal side of the lens where the refractive power reaches the value of the prescribed far vision mean power plus three quarters of the prescribed addition; defining, for each lens of the pair, a temporal half-width field of module of resulting astigmatism as the angular distance, at constant lowering angle, between the proximate vision gaze direction and a gaze direction on the temporal side of the lens where the module of resulting astigmatism reaches the value of one quarter of the prescribed addition; and defining, for each lens of the pair, a nasal half-width field of module of resulting astigmatism as the angular distance, at constant lowering angle, between the proximate vision gaze direction and a gaze direction on the nasal side of the lens where the module of resulting astigmatism reaches the value of one quarter of the prescribed addition. The ratio of the difference over the sum of temporal and nasal half-width fields of refractive power and/or the ratio of the difference over the sum of temporal and nasal half-width fields of module of resulting astigmatism are determined for each lens of the pair based on the laterality of the wearer.

    LENTILLE OPHTALMIQUE MULTIFOCALE PROGRESSIVE

    公开(公告)号:FR2956223A1

    公开(公告)日:2011-08-12

    申请号:FR1050897

    申请日:2010-02-09

    Applicant: ESSILOR INT

    Abstract: L'invention se rapporte à une lentille finie ou semi-finie présentant : - un disque regroupant l'ensemble des points de la lentille ayant la même abscisse et la même ordonnée que des points situés à l'intérieur d'un cercle dans le plan du repère de diamètre 30 millimètres et centré sur le point de référence prisme, - une longueur de progression inférieure à 14,5 millimètres; - un premier point spécifique ayant une valeur de cylindre égale à la valeur de cylindre maximale parmi l'ensemble des points de la lentille situés dans la zone nasale et dans le disque et - un deuxième point spécifique ayant une valeur de cylindre égale à la valeur de cylindre maximale parmi l'ensemble des points de la lentille situés dans la zone temporale et dans le disque; - un premier rapport entre : - la pente maximale de cylindre pour les points de la lentille ayant la même abscisse et la même ordonnée que les points situés sur des segments reliant la croix de montage aux premier et deuxième points spécifiques et - l'addition surfacique inférieur à 0,095 par millimètre; et - un deuxième rapport entre : - la valeur maximale de cylindre des premier et deuxième points spécifiques et - l'addition surfacique inférieur ou égal à 0,85. L'invention permet d'améliorer le confort du porteur.

    15.
    发明专利
    未知

    公开(公告)号:ES3014699T3

    公开(公告)日:2025-04-24

    申请号:ES19804710

    申请日:2019-11-14

    Applicant: ESSILOR INT

    Abstract: Método para determinar una lente oftálmica adaptada para corregir una refracción anormal del ojo del usuario, y que comprende elementos ópticos colocados sobre una superficie de dicha lente oftálmica para prevenir una progresión de la refracción anormal del ojo del usuario, comprendiendo el método: - proporcionar datos de prescripción adaptados al menos para corregir la refracción anormal del ojo del usuario; - proporcionar un parámetro de refracción anormal relacionado con la refracción anormal del ojo del usuario; - proporcionar un parámetro de sensibilidad que representa la variación de la sensibilidad del usuario en función de al menos un parámetro de los elementos ópticos; - determinar un valor de un parámetro de los elementos ópticos adaptados para el usuario basándose en el parámetro de refracción anormal y el parámetro de sensibilidad: - determinar una lente oftálmica basándose al menos en los datos de prescripción y el valor del parámetro de los elementos ópticos adaptados para el usuario. (Traducción automática con Google Translate, sin valor legal)

    System and method for determining a modification or a change of an initial myopia control solution used by a myopic subject

    公开(公告)号:AU2025202116A1

    公开(公告)日:2025-04-10

    申请号:AU2025202116

    申请日:2025-03-24

    Applicant: ESSILOR INT

    Abstract: System and method for determining a modification or a change of an initial myopia control solution used by a myopic subject The invention relates to a system (400) for determining a modification or a change of an initial myopia control solution used by a myopic subject, comprising: - a device (300) for determining a real initial value and real ulterior value of an eye state parameter representative of the myopia degree of the eye of the subject at an initial time and at an ulterior time; - one or more memories (100) and one or more processors (200), - said one or more memories (100) having in memory statistical data relative to the statistical evolution of said eye state parameter with time while said initial myopia control solution is implemented, - said one or more processors (200) being programmed to: i) determine an expected ulterior value (EUV) of a magnitude linked to said eye state parameter at said ulterior time based on said statistical data relative to the statistical evolution of said eye state parameter with time while said initial myopia control solution is implemented, and a real ulterior value (RUV) of said magnitude, ii) compare said real ulterior value (RUV) of said magnitude with said expected ulterior value (EUV) of said magnitude, iii) determine said modification or change of said initial myopia control solution for said subject based on the result of this comparison. Figure 1 Fig. 1 300,00 400 -200 Fig.2 l1 12 13

    Método para determinar una lente oftálmica adaptada para corregir la refracción anormal de un ojo de un usuario

    公开(公告)号:CO2021006348A2

    公开(公告)日:2021-05-31

    申请号:CO2021006348

    申请日:2021-05-14

    Applicant: ESSILOR INT

    Abstract: Método para determinar una lente oftálmica adaptada para corregir la refracción anormal de un ojo de un usuario y que comprende elementos ópticos colocados en una superficie de dicha lente oftálmica, para así evitar la progresión de la refracción anormal del ojo del usuario, comprendiendo el método: - proporcionar los datos de graduación adaptados al menos para corregir la refracción anormal del ojo del usuario; - proporcionar un parámetro de refracción anormal relacionado con la refracción anormal de un ojo del usuario; - proporcionar un parámetro de sensibilidad que represente la variación de la sensibilidad del usuario en función de al menos un parámetro de los elementos ópticos; - determinar un valor de un parámetro de los elementos ópticos adaptado al usuario en función del parámetro de refracción anormal y el parámetro de sensibilidad; - determinar una lente oftálmica en función de al menos los datos de graduación y el valor del parámetro de los elementos ópticos adaptado al usuario.

    A process for determining a pair of progressive ophthalmic lenses

    公开(公告)号:AU2013283260B2

    公开(公告)日:2016-06-16

    申请号:AU2013283260

    申请日:2013-06-28

    Applicant: ESSILOR INT

    Abstract: The process comprises: determining prescribed far vision mean power and addition for each lens of the pair; determining laterality of a wearer; defining a temporal side and a nasal side on each lens of the pair; defining, on each lens being worn and for each gaze direction, a refractive power and a module of resulting astigmatism, each gaze direction corresponding to a lowering angle and to an azimuth angle; defining a proximate vision gaze direction for each lens of the pair; defining, for each lens of the pair, a temporal half-width field of refractive power as the angular distance, at constant lowering angle, between the proximate vision gaze direction and a gaze direction on the temporal side of the lens where the refractive power reaches the value of the prescribed far vision mean power plus three quarters of the prescribed addition; defining, for each lens of the pair, a nasal half-width field of refractive power as the angular distance, at constant lowering angle, between the proximate vision gaze direction and a gaze direction on the nasal side of the lens where the refractive power reaches the value of the prescribed far vision mean power plus three quarters of the prescribed addition; defining, for each lens of the pair, a temporal half-width field of module of resulting astigmatism as the angular distance, at constant lowering angle, between the proximate vision gaze direction and a gaze direction on the temporal side of the lens where the module of resulting astigmatism reaches the value of one quarter of the prescribed addition; and defining, for each lens of the pair, a nasal half-width field of module of resulting astigmatism as the angular distance, at constant lowering angle, between the proximate vision gaze direction and a gaze direction on the nasal side of the lens where the module of resulting astigmatism reaches the value of one quarter of the prescribed addition. The ratio of the difference over the sum of temporal and nasal half-width fields of refractive power and/or the ratio of the difference over the sum of temporal and nasal half-width fields of module of resulting astigmatism are determined for each lens of the pair based on the laterality of the wearer.

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