61.
    发明专利
    未知

    公开(公告)号:FR2772489B1

    公开(公告)日:2000-03-10

    申请号:FR9715927

    申请日:1997-12-16

    Applicant: ESSILOR INT

    Abstract: The lens has a power profile related to the height (h) above its axis (A) and the addition (Add) corresponding to the degree of the wearer's presbyopia is defined by the formula: P(h) = f (PVL, ADD, h) + C (ADD, PVL) h + B (ADD, PVL) where PVL is the power required for distance vision, f is a function of the evolution between the powers for close and distance vision, and B (Add, PVL) is a power correction coefficient dependent on the coefficient of spherical abberation.

    63.
    发明专利
    未知

    公开(公告)号:FR2760853A1

    公开(公告)日:1998-09-18

    申请号:FR9703176

    申请日:1997-03-17

    Applicant: ESSILOR INT

    Abstract: The contact lens (10) has one or more projections (12) on its outer surface (11) to interact with the wearer's eyelids. Each projection is elongated and curved in shape, following the line of the perimeter of the lens, and has sloping ends and a flat top. The angle covered by the flat top of a projection is equivalent to half the angle covered by the whole projection. The thickness of each projection is between 0.2 and 0.24 mm, and the radius of the arc of its centre line (L) is between 0.7 and 0.9 of the radius of the lens, and it covers an angle of between 60 degrees and 150 degrees .

    LENTILLE DE CONTACT A BOSSAGES PALPEBRAUX

    公开(公告)号:CA2230181A1

    公开(公告)日:1998-09-17

    申请号:CA2230181

    申请日:1998-03-16

    Applicant: ESSILOR INT

    Abstract: Il s'agit d'une lentille de contact du genre comportant, localement, en saillie sur sa surface externe (11), dans sa zone périphérique (13), pour sa stabilisation dynamique, au moins un bossage palpébral (12). Suivant l'invention, ce bossage palpébral (12) est globalement allongé circonférentiellement, et, à l'une et l'autre de ses extrémités circonférentielles (15, 16), la pente de sa ligne de crête (L) est comprise entre 0,020 et 0,140, et, préférentiellement, entre 0,040 et 0,080. Application, notamment, aux lentilles de contact à correction optique axée et aux lentilles de contact pour presbytes.

    66.
    发明专利
    未知

    公开(公告)号:DE69400532T2

    公开(公告)日:1997-03-20

    申请号:DE69400532

    申请日:1994-02-15

    Applicant: ESSILOR INT

    Abstract: This relates to an opthalmic lens of the type in which, for the definition of two separate vision zones, one, (ZVL), corresponding to far vision and the other, (ZVP), corresponding to near vision, the curve representing the power as a function of the height h with respect to the axis (A) lies within a zone between a lower envelope curve and an upper envelope curve satisfying specified polynomial equations in which the coefficients depend on the addition of power corresponding to the degree of presbyopia of the wearer. According to the invention, either of the two vision zones (ZVL or ZVP) is enhanced with respect to the other, the corresponding areas SVL, SVP being related to each other by the following relationship: for enhanced near vision: 1.8

    68.
    发明专利
    未知

    公开(公告)号:ES2092380T3

    公开(公告)日:1996-11-16

    申请号:ES94400327

    申请日:1994-02-15

    Applicant: ESSILOR INT

    Abstract: This relates to an opthalmic lens of the type in which, for the definition of two separate vision zones, one, (ZVL), corresponding to far vision and the other, (ZVP), corresponding to near vision, the curve representing the power as a function of the height h with respect to the axis (A) lies within a zone between a lower envelope curve and an upper envelope curve satisfying specified polynomial equations in which the coefficients depend on the addition of power corresponding to the degree of presbyopia of the wearer. According to the invention, either of the two vision zones (ZVL or ZVP) is enhanced with respect to the other, the corresponding areas SVL, SVP being related to each other by the following relationship: for enhanced near vision: 1.8

    69.
    发明专利
    未知

    公开(公告)号:DE69400532D1

    公开(公告)日:1996-10-24

    申请号:DE69400532

    申请日:1994-02-15

    Applicant: ESSILOR INT

    Abstract: This relates to an opthalmic lens of the type in which, for the definition of two separate vision zones, one, (ZVL), corresponding to far vision and the other, (ZVP), corresponding to near vision, the curve representing the power as a function of the height h with respect to the axis (A) lies within a zone between a lower envelope curve and an upper envelope curve satisfying specified polynomial equations in which the coefficients depend on the addition of power corresponding to the degree of presbyopia of the wearer. According to the invention, either of the two vision zones (ZVL or ZVP) is enhanced with respect to the other, the corresponding areas SVL, SVP being related to each other by the following relationship: for enhanced near vision: 1.8

    LENTILLE OPHTALMIQUE A VISION SIMULTANEE POUR LA CORRECTION DE LA PRESBYTIE ET JEU DE DEUX DE CES LENTILLES OPHTALMIQUES POUR UN MEME PORTEUR

    公开(公告)号:CA2115804A1

    公开(公告)日:1994-08-19

    申请号:CA2115804

    申请日:1994-02-16

    Applicant: ESSILOR INT

    Abstract: 19 "Lentille ophtalmique à vision simultanée pour la correction de la presbytie et jeu de deux telles lentilles ophtalmiques pour un même porteur" Il s'agit d'une lentille ophtalmique du genre suivant lequel, pour la définition de deux zones de vision distinctes, l'une, (ZVL) correspondant à la vision de loin, l'autre, (ZVP), correspondant à la vision de près, la courbe représentative de la puissance en fonction de la hauteur h par rapport à l'axe (A) s'inscrit dans une zone comprise entre une courbe enveloppe inférieure et une courbe enveloppe supérieure répondant à des équations polynomiales déterminées dans lesquelles les coefficients dépendent de l'addition de puissance correspondant au degré de presbytie du porteur. Suivant l'invention, l'une quelconque des deux zones de vision (ZVL ou ZVP) est renforcée par rapport à l'autre, les surfaces SVL, SVP correspondantes étant entre elles dans la relation suivante : pour une vision de près renforcée : et, pour une vision de loin renforcée : Application à la correction de la presbytie. Figure 1

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