公开(公告)号：AU8934498A

公开(公告)日：1999-05-06

申请号：AU8934498

申请日：1998-10-15

Applicant: ESSILOR INT

Inventor： PEDRONO CLAUDE ,  JURKIEWIEZ FANNY ,  FAUQUIER CATHERINE ,  ROLAND ERIC ,  HARSIGNY CHRISTIAN

IPC: G02C7/06 ,  G02B3/10 ,  G02C7/02

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.

公开(公告)号：ES2068529T3

公开(公告)日：1995-04-16

申请号：ES91401055

申请日：1991-04-22

Applicant: ESSILOR INT

Inventor： CHAUVEAU JEAN-PIERRE ,  DEFORGES JEAN-PAUL ,  HARSIGNY CHRISTIAN

IPC: G02C7/06 ,  G02C7/02

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. … …

公开(公告)号：DE69105806D1

公开(公告)日：1995-01-26

申请号：DE69105806

申请日：1991-04-22

Applicant: ESSILOR INT

Inventor： CHAUVEAU JEAN-PIERRE ,  DEFORGES JEAN-PAUL ,  HARSIGNY CHRISTIAN

IPC: G02C7/06 ,  G02C7/02

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. … …

公开(公告)号：BR9304636A

公开(公告)日：1994-06-21

申请号：BR9304636

申请日：1993-12-06

Applicant: ESSILOR INT

Inventor： HARSIGNY CHRISTIAN ,  MIEGE CHRISTIAN ,  CHAUVEAU JEAN-PIERRE ,  AHSBAHS FRANCOISE

IPC: G02C7/06 ,  G02C7/02

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.

公开(公告)号：CA2040523A1

公开(公告)日：1991-10-26

申请号：CA2040523

申请日：1991-04-16

Applicant: ESSILOR INT

Inventor： CHAUVEAU JEAN-PIERRE ,  DEFORGES JEAN-PAUL ,  HARSIGNY CHRISTIAN

IPC: G02C7/06 ,  G02C7/02

公开(公告)号：IT1125580B

公开(公告)日：1986-05-14

申请号：IT2674079

申请日：1979-10-24

Applicant: ESSILOR INT

Inventor： BETTIOL BRUNO ,  HARSIGNY CHRISTIAN ,  LENNE WILLIAM

IPC: G02B3/04 ,  G02C7/02 ,  G02C

公开(公告)号：DE2942216A1

公开(公告)日：1980-04-30

申请号：DE2942216

申请日：1979-10-18

Applicant: ESSILOR INT

Inventor： BETTIOL BRUNO ,  HARSIGNY CHRISTIAN ,  LENNE WILLIAM

IPC: G02B3/04 ,  G02C7/02

公开(公告)号：AU751219B2

公开(公告)日：2002-08-08

申请号：AU8934498

申请日：1998-10-15

Applicant: ESSILOR INT

Inventor： PEDRONO CLAUDE ,  HARSIGNY CHRISTIAN ,  FAUQUIER CATHERINE ,  JURKIEWIEZ FANNY ,  ROLAND ERIC

IPC: G02C7/06 ,  G02B3/10 ,  G02C7/02

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.

公开(公告)号：DE69801476T2

公开(公告)日：2002-05-29

申请号：DE69801476

申请日：1998-10-13

Applicant: ESSILOR INT

Inventor： PEDRONO CLAUDE ,  HARSIGNY CHRISTIAN ,  FAUQUIER CATHERINE ,  JURKIEWIEZ FANNY ,  ROLAND ERIC

IPC: G02C7/06 ,  G02B3/10 ,  G02C7/02

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.

公开(公告)号：CA2250616A1

公开(公告)日：1999-04-16

申请号：CA2250616

申请日：1998-10-15

Applicant: ESSILOR INT

Inventor： FAUQUIER CATHERINE ,  ROLAND ERIC ,  PEDRONO CLAUDE ,  HARSIGNY CHRISTIAN ,  JURKIEWIEZ FANNY

IPC: G02C7/06 ,  G02B3/10 ,  G02C7/02

Abstract: An ophthalmic lens with an aspherical face is provided having a near vision region which is larger in size and wider than that of conventional multifocal lenses, and having reduced aberrations and, notably, astigmatism. Using A to signify a difference in mean sphere between the near vision control point and the geometrical center of the lens, this is achieved by making a surface area defined by points less than 20 mm from the geometrical center of the lens, and for which cylinder is comprised between 0.42.DELTA. and 0.84.DELTA. greater than the surface area defined by points less than 20 mm from the geometrical center, and for which cylinder is less than 0.42.DELTA..