Method for transforming a progressive ophthalmic surface

    公开(公告)号:AU2012350695B2

    公开(公告)日:2017-05-11

    申请号:AU2012350695

    申请日:2012-12-12

    Applicant: ESSILOR INT

    Abstract: The present invention relates to a method for transforming an initial progressive ophthalmic surface which has to be manufactured by a manufacturing method, the transformation method comprising: • a step of selecting a manufacturing method intended to be implemented, in which said manufacturing method introduces a reproducible surface defect, • a step of selecting a predictive model of said reproducible surface defect, • a step of selecting an initial progressive ophthalmic surface S intended to be manufactured, • a step of determining (S1), during which there is determined, by means of said predictive model, a surface defect value D which would be introduced if the initial progressive ophthalmic surface S were produced by said manufacturing method, • a transformation step (S2), during which said initial progressive ophthalmic surface S is transformed into a transformed progressive ophthalmic surface S* by compensating the defect value D determined during the step (S1), such that the subsequent manufacture of the transformed ophthalmic surface S* by said manufacturing method makes it possible to obtain a progressive ophthalmic surface which substantially conforms to the initial progressive ophthalmic surface S.

    26.
    发明专利
    未知

    公开(公告)号:DE602007001345D1

    公开(公告)日:2009-07-30

    申请号:DE602007001345

    申请日:2007-04-18

    Applicant: ESSILOR INT

    Abstract: This tool includes: a rigid support (104) having a transverse end surface (113); an elastically compressible interface that is pressed against and covers the end surface; a flexible pad adapted to be pressed against the optical surface, itself pressed against and covering the interface on the opposite side of and in line with the end surface (113); spring return element (115) connecting the support (104) to a peripheral portion of the flexible pad situated transversely beyond the end surface (113); and a flexible flange (131) that is part of a base (130) to which the rigid support (104), which is surrounded by the flange (131), also belongs.

    27.
    发明专利
    未知

    公开(公告)号:BRPI0519714A2

    公开(公告)日:2009-03-10

    申请号:BRPI0519714

    申请日:2005-12-21

    Applicant: ESSILOR INT

    Abstract: A polishing wheel (10) arranged to polish an article. The polishing wheel comprises a hub (12) provided with an axial cavity (18) coaxial with an axis (26). The polishing wheel further comprises a substrate layer (14) being made of an elastomer material affixed to the hub (12) and coaxial with the axis (26). The substrate layer (14) has an outer surface (20) having a substantially symmetrical shape with respect to the axis (26). The polishing wheel (10) further comprises a continuous cover layer (16) affixed to the outer surface (20) and coaxial with the axis (26). The continuous cover layer (16) is made of an elastomer material covering substantially entirely the outer surface (20).

    PROCEDE D'OBTENTION D'UN ARTICLE EN MATERIAU TRANSPARENT EXEMPT DE RAIES DE SURFACAGE VISIBLES ET ARTICLE OBTENU

    公开(公告)号:CA2612853A1

    公开(公告)日:2006-12-28

    申请号:CA2612853

    申请日:2006-06-22

    Applicant: ESSILOR INT

    Abstract: Procédé d'obtention d'un article transparent exempt de raies de surfaçage visibles, comprenant : l'obtention d'un substrat en un matériau transparent d'indice de réfraction ns, dont au moins une face principale a été ébauchée et polie à une valeur de Ra variant de 0,001 à 0,01 ~m mais qui présente des défauts de surface visibles sous la forme de fines rayures individualisées ; le dépôt directement sur la face principale ébauchée et polie du substrat d'une composition liquide, polymérisable, de revêtement de masquage présenta nt un angle de contact avec la face principale du substrat d'au plus 30~, et formant par polymérisation un revêtement de masquage ayant un indice de réfraction nc tel que 0,01

    30.
    发明专利
    未知

    公开(公告)号:DE60000673T2

    公开(公告)日:2003-07-03

    申请号:DE60000673

    申请日:2000-06-08

    Applicant: ESSILOR INT

    Abstract: The smoothing implement for optical lenses has a support (11) with an annular recess (15) to receive the smoothing tool (12) which is mounted by a smaller recess (16) in the floor of the main recess. The smoothing tool projects beyond the mounting. The implement has an elastic hub and projecting faces on the edges facing the smoothing tool to form an outlet orifice.

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