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1. EP1029254 - IMPROVED OPHTHALMIC LENS

Office European Patent Office
Application Number 98949831
Application Date 23.10.1998
Publication Number 1029254
Publication Date 23.08.2000
Publication Kind B1
IPC
G02C 7/02
GPHYSICS
02OPTICS
CSPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
7Optical parts
02Lenses; Lens systems
G02C 7/06
GPHYSICS
02OPTICS
CSPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
7Optical parts
02Lenses; Lens systems
06bifocal; multifocal
G02C 7/04
GPHYSICS
02OPTICS
CSPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
7Optical parts
02Lenses; Lens systems
04Contact lenses for the eyes
CPC
G02C 7/028
GPHYSICS
02OPTICS
CSPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
7Optical parts
02Lenses; Lens systems ; ; Methods of designing lenses
024Methods of designing ophthalmic lenses
028Special mathematical design techniques
G02C 2202/22
GPHYSICS
02OPTICS
CSPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
2202Generic optical aspects applicable to one or more of the subgroups of G02C7/00
22Correction of higher order and chromatic aberrations, wave front measurement and calculation
Applicants CARL ZEISS VISION AU HOLDING
Inventors MILLER ANTHONY DENNIS
VARNAS SAULIUS RAYMOND
Designated States
Priority Data 9800881 23.10.1998 AU
PP016197 03.11.1997 AU
Title
(DE) VERBESSERTE OPHTHALMISCHE LINSE
(EN) IMPROVED OPHTHALMIC LENS
(FR) VERRE OPHTHALMIQUE AMELIORÉ
Abstract
(EN)
An ophthalmic lens element having a first surface and an atoroidal or generally aspheric second surface. The second surface is described by a symetric polynomial whose coefficients have been chosen to minimise a merit function constructed of the sum of a particular optical aberration over substantially the entire surface thereof.

(FR)
Verre correcteur présentant une première surface et une seconde surface atoroïdale ou généralement asphérique. La seconde surface est décrite par un polynôme symétrique dont les coefficients ont été choisis de façon à minimiser une fonction d'évaluation constituée de la somme d'une aberration optique particulière sur sensiblement sa surface totale.

Also published as
MXPA/a/2000/004160
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