-
公开(公告)号：AU2002234720B2
公开(公告)日：2005-10-06
申请号：AU2002234720
申请日：2002-02-01
Applicant: ESSILOR INT
Inventor： DEVIE PIERRE , AHSBAHS FRANCOISE
IPC: G02C7/06 , G02C7/02 , G02C007/02
Abstract: A progressive multifocal ophthalmic lens having a far vision region, an intermediate vision region and a near vision region, a main meridian of progression passing through said three regions, and a power addition equal to a difference in mean sphere between a near vision region control point and a far vision region control point is provided. The lens has a progression length less than 12 mm, defined as the vertical distance between a mounting center and a point on the meridian where mean sphere is greater than mean sphere at the far vision control point by 85% of the power addition value. To ensure good visual characteristics not only around the meridian, but also in regions of extra-foveal vision, the ratio between the integral of the product of cylinder times the norm of sphere gradient, on a 40 mm diameter circle centered on the center of the lens, and the product of the area of this circle, power addition and a maximum value of the norm of sphere gradient over that part of the meridian comprised within this circle is less than 0.14.
-
公开(公告)号：FR2799010B1
公开(公告)日：2003-06-06
申请号：FR9911941
申请日：1999-09-24
Applicant: ESSILOR INT
Inventor： DECRETON BRUNO , BONNIN THIERRY , DROBE BJORN , POULAIN ISABELLE , LE SAUX GILLES , AHSBAHS FRANCOISE
-
公开(公告)号：CA2436358A1
公开(公告)日：2002-08-15
申请号：CA2436358
申请日：2002-02-01
Applicant: ESSILOR INT
Inventor： DEVIE PIERRE , AHSBAHS FRANCOISE
Abstract: L'invention concerne une lentille s ophtalmique multifocale progressive, comportant une surface asphérique, avec une addition égale à la différence d e sphère moyenne entre un point de référence de la zone de vision de près et u n point de référence de la zone de vision de loin. Elle présente une longueur de progression inférieure à 12 mm, la longueur de progression étant égale à la distance verticale entre une croix de montage et le point de la méridienne o ù la sphère moyenne est supérieure de 85 % de l'addition à la sphère au point de référence pour la vision de loin. Pour assurer à la lentille de bonnes caractéristiques de vision, non seulement autour de la méridienne, mais auss i dans les zones de vision extrafovéales, le rapport entre: l'intégrale du produit du cylindre par la norme du gradient de la sphère, sur un cercle de 40 mm de diamètre centré sur le centre de la lentille, d'une part et le produit de l'aire de ce cercle, de l'addition et de la valeur maximale de la norme d u gradient de la sphère sur la partie de la méridienne comprise dans ce cercle , d'autre part, est inférieur à 0,14.
-
公开(公告)号：DE69801629T2
公开(公告)日：2002-06-27
申请号：DE69801629
申请日：1998-10-13
Applicant: ESSILOR INT
Inventor： BAUDARD THIERRY , AHSBAHS FRANCOISE , MIEGE CHRISTIAN
-
公开(公告)号：ES2165134T3
公开(公告)日：2002-03-01
申请号：ES98402531
申请日：1998-10-13
Applicant: ESSILOR INT
Inventor： BAUDARD THIERRY , AHSBAHS FRANCOISE , MIEGE CHRISTIAN
-
Patent Agency Ranking
公开(公告)号：AT207210T
公开(公告)日：2001-11-15
申请号：AT96400756
申请日：1996-04-05
Applicant: ESSILOR INT
Inventor： AHSBAHS FRANCOISE , BAUDART THIERRY , LE SAUX GILLES
Abstract: The lens has an aspherical surface (S) with a distant vision zone (VL), a close vision zone (VP) and an intermediate vision zone (VI), with a main progression meridian (MM') passing through the three zones. The three vision zones (VL, VP, VI) are separated by isocylindrical lines, and the distant vision zone has a sector angle of at least 145 degrees. A line bisecting the angle forms an angle of less than 5 degrees, and pref under 2 degrees with a vertical.
-
公开(公告)号：BR9601580A
公开(公告)日：1999-10-13
申请号：BR9601580
申请日：1996-04-19
Applicant: ESSILOR INT
Inventor： AHSBAHS FRANCOISE , BAUDART THIERRY , SAUX GILLES LE
Abstract: The lens has an aspherical surface (S) with a distant vision zone (VL), a close vision zone (VP) and an intermediate vision zone (VI), with a main progression meridian (MM') passing through the three zones. The three vision zones (VL, VP, VI) are separated by isocylindrical lines, and the distant vision zone has a sector angle of at least 145 degrees. A line bisecting the angle forms an angle of less than 5 degrees, and pref under 2 degrees with a vertical.
-
公开(公告)号：FR2770000A1
公开(公告)日：1999-04-23
申请号：FR9712990
申请日：1997-10-16
Applicant: ESSILOR INT
Inventor： BAUDART THIERRY , AHSBAHS FRANCOISE , MIEGE CHRISTIAN
-
公开(公告)号：CA2110926C
公开(公告)日：1998-09-22
申请号：CA2110926
申请日：1993-12-08
Applicant: ESSILOR INT
Inventor： MIEGE CHRISTIAN , HARSIGNY CHRISTIAN , CHAUVEAU JEAN-PIERRE , AHSBAHS FRANCOISE
Abstract: A progressive multifocal ophtalmic lens is provided having an aspherical surface comprising a distance vision portion, a near vision portion and an intermediate vision portion, in which the maximum mean sphere gradient value is situated in the intermediate vision portion of the principal meridian of progression of the lens, and the cylinder gradient over the whole aspherical surface of the lens is less than the product obtained by multiplying the power addition value at each point by a constant value coefficient.
-
公开(公告)号：AU5068996A
公开(公告)日：1996-10-31
申请号：AU5068996
申请日：1996-04-15
Applicant: ESSILOR INT
Inventor： AHSBAHS FRANCOISE , BAUDART THIERRY , SAUX GILES LE
Abstract: The lens has an aspherical surface (S) with a distant vision zone (VL), a close vision zone (VP) and an intermediate vision zone (VI), with a main progression meridian (MM') passing through the three zones. The three vision zones (VL, VP, VI) are separated by isocylindrical lines, and the distant vision zone has a sector angle of at least 145 degrees. A line bisecting the angle forms an angle of less than 5 degrees, and pref under 2 degrees with a vertical.
-
-
-
-
-
-
-
-
-
Search Results
92
records
(took 0.023 seconds)
