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.

    43.
    发明专利
    未知

    公开(公告)号:DE60129644T2

    公开(公告)日:2008-05-21

    申请号:DE60129644

    申请日:2001-03-02

    Applicant: ESSILOR INT

    Abstract: A process is disclosed of fabricating a surface of an ophthalmic lens. The process includes a step a) of machining the surface by removing material by moving a cutting tool along a continuous trajectory to form grooves, two adjacent grooves being spaced by a constant pitch from 0.01 mm to 3 mm, and a step b) of smoothing the machined surface by moving a smoothing tool along a continuous trajectory formed of passes, two adjacent passes being spaced by a constant pitch from 0.2 mm to 3 mm, to effect band-pass filtering of the undulations of the surface between a low frequency corresponding to a surface envelope and a high frequency corresponding to a background roughness.

    45.
    发明专利
    未知

    公开(公告)号:AT368546T

    公开(公告)日:2007-08-15

    申请号:AT01911833

    申请日:2001-03-02

    Applicant: ESSILOR INT

    Abstract: A process is disclosed of fabricating a surface of an ophthalmic lens. The process includes a step a) of machining the surface by removing material by moving a cutting tool along a continuous trajectory to form grooves, two adjacent grooves being spaced by a constant pitch from 0.01 mm to 3 mm, and a step b) of smoothing the machined surface by moving a smoothing tool along a continuous trajectory formed of passes, two adjacent passes being spaced by a constant pitch from 0.2 mm to 3 mm, to effect band-pass filtering of the undulations of the surface between a low frequency corresponding to a surface envelope and a high frequency corresponding to a background roughness.

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