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    21.
    发明专利
    未知

    公开(公告)号：BRPI0610695A2

    公开(公告)日：2010-07-20

    申请号：BRPI0610695

    申请日：2006-03-31

    Applicant: ESSILOR INT

    Inventor： BOURDONCLE BERNARD ,  GUILLOUX CYRIL ,  JOSSO HERVE

    IPC: G02C7/02 ,  G02C7/06

    Abstract: An ophthalmic lens has a complex surface with an optical centre, a fitting cross (FC) situated 4 mm above the optical centre, a meridian having a power addition between reference points in far vision (FV) and in near vision (NV). The complex surface has a mean-sphere difference normalized to the addition on the meridian, between the geometric centre of the lens and the control point in far vision, less than or equal to 0.1; a progression length less than or equal to 14 mm; a rebound of the sphere quantity normalized to the addition on a circle with a radius of 20 mm centred on the geometric centre of the lens less than 0.11, and a maximum slope of the sphere variation normalized to the addition along the meridian comprised between 0.9 and 0.11 mm -1 . The lens is suited to broadened far vision with a good accessibility to near vision.

    22.
    发明专利
    未知

    公开(公告)号：FR2905011B1

    公开(公告)日：2009-04-17

    申请号：FR0607324

    申请日：2006-08-16

    Applicant: ESSILOR INT ,  CENTRE NAT RECH SCIENT

    Inventor： BAILLET GILLES ,  BOURDONCLE BERNARD ,  HARRAR MARGALITH ,  VIENOT FRANCOISE

    IPC: G02B5/20 ,  G01J3/46 ,  G02C7/10

    Abstract: The method involves calculating colorimetric co-ordinates of digitally generated transmission spectrums. The spectrums having the co-ordinates corresponding to that of an initial color filter are selected. A fictive filter corresponding to each selected spectrum is quantitatively evaluated, where the evaluation result characterizing a capacity of the fictive filter is obtained by using a CIECAM02 model to stimulate a visual perception of a color sample via the fictive filter. One of the selected spectrums having better quantitative evaluation is chosen to improve the initial filter.

    PROCEDE D'AMELIORATION D'UN FILTRE COLORE
    24.
    发明专利
    PROCEDE D'AMELIORATION D'UN FILTRE COLORE 未知

    公开(公告)号：FR2905011A1

    公开(公告)日：2008-02-22

    申请号：FR0607324

    申请日：2006-08-16

    Applicant: ESSILOR INT ,  CENTRE NAT RECH SCIENT

    Inventor： BAILLET GILLES ,  BOURDONCLE BERNARD ,  HARRAR MARGALITH ,  VIENOT FRANCOISE

    IPC: G02B5/20 ,  G01J3/46 ,  G02C7/10

    Abstract: Un procédé d'amélioration d'un filtre coloré initial comprend une génération numérique de spectres sinusoïdaux. Deux étapes de sélection desdits spectres sont ensuite exécutées. La première sélection est réalisée selon un critère de similitude colorimétrique par rapport au filtre initial. La seconde sélection est réalisée selon la capacité de filtres fictifs correspondant à chaque spectre de restituer des teintes d'une façon naturelle. Pour cela, des observations d'échantillons de teintes à travers chaque filtre fictif sont simulées numériquement, en utilisant un modèle d'apparence colorée pour prendre en compte une perception visuelle d'un observateur humain. De cette façon, un filtre amélioré est déterminé, qui a une couleur proche de celle du filtre initial et qui procure un rendu naturel des teintes.

    25.
    发明专利
    未知

    公开(公告)号：FR2880428B1

    公开(公告)日：2007-10-26

    申请号：FR0500038

    申请日：2005-01-04

    Applicant: ESSILOR INT

    Inventor： BOURDONCLE BERNARD ,  DECRETON BRUNO ,  GUILLOUX CYRIL

    IPC: G02C7/06

    Abstract: The invention relates to a progressive ophthalmic lens and to a method of producing one such lens. Variations in the optical power and the astigmatism of a progressive ophthalmic lens (10) result from (i) spherical and cylindrical variations in the anterior face (2) of the lens and (ii) variations in another physical unit of the lens. In this way, it is possible to customise the design of the progressive lens as a function of at least one behavioural characteristic of the lens wearer. Said customisation can be repeated by modulating the values of the physical unit between the different points of the lens. As a result, progressive lenses with different designs can be obtained from identical semi-finished lenses. The physical unit can comprise the sphere and the cylinder of the posterior face of the lens (3).

    SET OF PROGRESSIVE MULTIFOCAL OPHTHALMIC LENSES
    26.
    发明专利
    SET OF PROGRESSIVE MULTIFOCAL OPHTHALMIC LENSES 未知

    公开(公告)号：CA2265705C

    公开(公告)日：2007-02-13

    申请号：CA2265705

    申请日：1997-09-09

    Applicant: ESSILOR INT

    Inventor： LALOUX THIERRY ,  BAUDART THIERRY ,  BOURDONCLE BERNARD ,  PEDRONO CLAUDE ,  ROSSIER CLAIRE

    IPC: G02C7/06 ,  G02C7/02

    Abstract: The invention concerns a set of progressive multifocal ophthalmic lenses, ea ch having a first progressive multifocal surface and a second surface preferabl y spherical. It proposes to define the set of lenses with regard to the optical characteristics of the lenses, and particularly wearer power and oblique astigmatism, in wor n conditions. For this purpose, the invention defines an ergorama associating with each sight direction in worn conditions a target object point, and a given power. This ergorama supplies a power target for a definition by optimisation of the lenses, and is used in a radii plotting programme for calculating the optical characteristics during optimisation. The set of lenses has substantially identical optical performances for a given addition, whatever the power of the far vision reference point.

    27.
    发明专利
    未知

    公开(公告)号：DE4414106B4

    公开(公告)日：2005-12-22

    申请号：DE4414106

    申请日：1994-04-22

    Applicant: ESSILOR INT

    Inventor： ASHBAHS FRANCOIS ,  BOURDONCLE BERNARD ,  DELDALLE BENEDICTE ,  MIEGE CHRISTIAN

    IPC: G02C7/02 ,  G02C7/06 ,  G02B3/10

    Abstract: In a pair of progressive multifocal ophthalmic lenses, in which each lens has an aspherical surface comprising a far vision portion, a near vision portion, an intermediate vision portion, and a prime meridian of power progression passing through these three portions, the prime meridians of progression of the lenses are substantially symmetrical with respect to each other, and one of the lenses is more particularly dedicated to far vision and the other is more particularly dedicated to near vision, the lens dedicated to far vision having a more extensive far vision portion than the far vision portion of the lens dedicated to near vision, and the lens dedicated to far vision having a less extensive near vision portion than the near vision portion of the lens dedicated to near vision.

    28.
    发明专利
    未知

    公开(公告)号：DE69714273T2

    公开(公告)日：2003-03-27

    申请号：DE69714273

    申请日：1997-09-09

    Applicant: ESSILOR INT

    Inventor： BAUDART THIERRY ,  BOURDONCLE BERNARD ,  LALOUX THIERRY ,  PEDRONO CLAUDE ,  ROSSIER CLAIRE

    IPC: G02C7/06 ,  G02C7/02

    Abstract: The invention concerns a set of progressive multifocal opthalmic lenses, each having a first progressive multifocal surface and a second surface preferably spherical. It proposes to define the set of lenses with regard to the optical characteristics of the lenses, and particularly wearer power and oblique astigmatism, in worn conditions. For this purpose, the invention defines an ergorama associating with each sight direction in worn conditions a target object point, and a given power. This ergorama supplies a power target for a definition by optimisation of the lenses, and is used in a radii plotting programme for calculating the optical characteristics during optimisation. The set of lenses has substantially identical optical performances for a given addition, whatever the power of the far vision reference point.

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