Progressive ophthalmic lens
    21.
    发明专利

    公开(公告)号:AU2012234416B2

    公开(公告)日:2015-06-11

    申请号:AU2012234416

    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

    Progressive ophthalmic lens
    22.
    发明专利

    公开(公告)号:AU2012234416A1

    公开(公告)日:2013-09-26

    申请号:AU2012234416

    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

    PROCEDE DE TRANSFORMATION D'UNE SURFACE PROGRESSIVE INITIALE

    公开(公告)号:FR2984197A1

    公开(公告)日:2013-06-21

    申请号:FR1161702

    申请日:2011-12-15

    Applicant: ESSILOR INT

    Abstract: Procédé de transformation d'une surface progressive initiale devant être fabriquée par un procédé de fabrication, le procédé de transformation comprenant : - une étape de détermination d'un défaut surfacique au cours de laquelle la valeur D d'un défaut surfacique introduit de manière reproductible par le procédé de fabrication est déterminée au moyen d'un modèle de défaut préalablement établi pour ledit procédé de fabrication, - une étape de transformation, au cours de laquelle la surface progressive initiale est transformée en compensant la valeur D du défaut surfacique déterminée au moyen du modèle de défaut de sorte que, lors de la fabrication de la surface progressive au moyen dudit procédé de fabrication, la surface progressive fabriquée soit sensiblement conforme à la surface progressive initiale.

    PROGRESSIVE OPHTHALMIC LENS
    24.
    发明专利

    公开(公告)号:CA2830638A1

    公开(公告)日:2012-10-04

    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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