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公开(公告)号：ES2077528B1
公开(公告)日：1997-07-01
申请号：ES9302566
申请日：1993-12-10
Applicant: ESSILOR INT
Inventor： HARSIGNY CHRISTIAN , CHAUVEAU JEAN-PIERRE , AHSBAHS FRANCOISE , MIEGE CHRISTIAN
Abstract: A progressive multifocal ophthalmic 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.
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公开(公告)号：ITRM930802A1
公开(公告)日：1995-06-03
申请号：ITRM930802
申请日：1993-12-03
Applicant: ESSILOR INT
Inventor： AHSBAHS FRANCOISE , CHAUVEAU JEAN-PIERRE , HARSIGNY CHRISTIAN , MIEGE CHRISTIAN
IPC: G02C7/06 , G02C20060101 , G02C7/02
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公开(公告)号：FR2699294B1
公开(公告)日：1995-02-10
申请号：FR9214929
申请日：1992-12-11
Applicant: ESSILOR INT
Inventor： HARSIGNY CHRISTIAN , MIEGE CHRISTIAN , CHAUVEAU JEAN-PIERRE , AHSBAHS FRANCOISE
Abstract: A progressive multifocal ophthalmic 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.
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公开(公告)号：AT115740T
公开(公告)日：1994-12-15
申请号：AT91401055
申请日：1991-04-22
Applicant: ESSILOR INT
Inventor： CHAUVEAU JEAN-PIERRE , DEFORGES JEAN-PAUL , HARSIGNY CHRISTIAN
Abstract: This relates to a progressive ophthalmic lens whose front face (11A) for example comprises, continuously, on the one hand, a central zone (14) which, having a progressively variable curvature along at least a portion of at least one meridian, is the optically useful zone of it and, on the other hand, surrounding this central zone (14), a peripheral connection zone (15) connecting the central zone tangentially. … According to the invention, the optically useful central zone (14) of this front face (11A) is delimited by a closed curve which, in projection onto a plane perpendicular to the geometrical axis of the assembly, has everywhere an oval shape and the radius of curvature of the radial section of its peripheral connection zone (15) varies circumferentially in value and/or in sign, such that around its peripheral edge (13) the lens is of equal thickness everywhere. … Application for obtaining progressive ophthalmic lenses which are easier to produce, more aesthetic and lighter. … …
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公开(公告)号：AU5184693A
公开(公告)日：1994-06-23
申请号：AU5184693
申请日：1993-11-22
Applicant: ESSILOR INT
Inventor： HARSIGNY CHRISTIAN , MIEGE CHRISTIAN , CHAUVEAU JEAN-PIERRE , AHSBAHS FRANCOISE
Abstract: A progressive multifocal ophthalmic 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.
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Patent Agency Ranking
公开(公告)号：DE4342234A1
公开(公告)日：1994-06-16
申请号：DE4342234
申请日：1993-12-10
Applicant: ESSILOR INT
Inventor： HARSIGNY CHRISTIAN , MIEGE CHRISTIAN , CHAUVEAU JEAN-PIERRE , AHSBAHS FRANCOISE
Abstract: A progressive multifocal ophthalmic 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.
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公开(公告)号：ES2050262T3
公开(公告)日：1994-05-16
申请号：ES89402878
申请日：1989-10-18
Applicant: ESSILOR INT
Inventor： CORNU DANIEL RUE FRANCOIS BOUC , HARSIGNY CHRISTIAN , THIEBAUT JEAN
Abstract: A positive power ophthalmic lens has a central optically active area the diameter of which is at most equal to the diameter of its geometrical contour. It has an optional peripheral merging area around the central optically active area, between the latter and the geometrical contour. The diameter D1 in millimeters of the central optically active area is related to the power P of the lens in diopters by a general equation of the type: D1=a-b.p where a is a numerical parameter taking a value between 84 and 89 and b is a numerical parameter taking a value between 4 and 4.9. This equation makes it possible to obtain well corrected positive power ophthalmic lenses with a large diameter that are relatively light in weight.
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公开(公告)号：DE68912087T2
公开(公告)日：1994-04-28
申请号：DE68912087
申请日：1989-10-18
Applicant: ESSILOR INT
Inventor： CORNU DANIEL RUE FRANCOIS BOUC , HARSIGNY CHRISTIAN , THIEBAUT JEAN
Abstract: A positive power ophthalmic lens has a central optically active area the diameter of which is at most equal to the diameter of its geometrical contour. It has an optional peripheral merging area around the central optically active area, between the latter and the geometrical contour. The diameter D1 in millimeters of the central optically active area is related to the power P of the lens in diopters by a general equation of the type: D1=a-b.p where a is a numerical parameter taking a value between 84 and 89 and b is a numerical parameter taking a value between 4 and 4.9. This equation makes it possible to obtain well corrected positive power ophthalmic lenses with a large diameter that are relatively light in weight.
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公开(公告)号：AU5208879A
公开(公告)日：1980-05-01
申请号：AU5208879
申请日：1979-10-23
Applicant: ESSILOR INT
Inventor： BETTIOL BRUNO , HARSIGNY CHRISTIAN , LENNE WILLIAM
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公开(公告)号：DE69801476D1
公开(公告)日：2001-10-04
申请号：DE69801476
申请日：1998-10-13
Applicant: ESSILOR INT
Inventor： PEDRONO CLAUDE , HARSIGNY CHRISTIAN , FAUQUIER CATHERINE , JURKIEWIEZ FANNY , ROLAND ERIC
Abstract: The lens has an aspherical surface with a geometrical center, a reference point for near vision, and a virtually umbilical and vertical meridian line with a mean spherical and cylindrical value at each point. The area formed by points at a distance of less than 20 mm from the geometrical center and with a cylindrical value of between 0.42 and 0.84 diopter is greater than the area formed by points at a distance of less than 20 mm from the geometrical center and with a cylindrical value of less than 0.42 diopter.
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