ES2013548A6 - Perfeccionamientos en lentes progresivas. - Google Patents
Perfeccionamientos en lentes progresivas.Info
- Publication number
- ES2013548A6 ES2013548A6 ES8902041A ES8902041A ES2013548A6 ES 2013548 A6 ES2013548 A6 ES 2013548A6 ES 8902041 A ES8902041 A ES 8902041A ES 8902041 A ES8902041 A ES 8902041A ES 2013548 A6 ES2013548 A6 ES 2013548A6
- Authority
- ES
- Spain
- Prior art keywords
- beta
- epsilon
- triangle
- alpha
- lens
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/06—Lenses; Lens systems ; Methods of designing lenses bifocal; multifocal ; progressive
- G02C7/061—Spectacle lenses with progressively varying focal power
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/024—Methods of designing ophthalmic lenses
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/024—Methods of designing ophthalmic lenses
- G02C7/028—Special mathematical design techniques
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Eyeglasses (AREA)
Abstract
ESTOS PERFECCIONAMIENTOS EN LAS LENTES PROGRESIVAS CONSISTEN EN DISPONER EN LA SUPERFICIE DE LA LENTE A OPTIMIZAR UNA MALLA DE TRIANGULOS, PREFERENTEMENTE EQUILATEROS, QUE CUBREN HOMOGENEAMENTE EL ESPACIO CUYO DOMINIO SE PRETENDE DISEÑAR DE LA LENTE, LA CUAL SUPERFICIE SE DESCRIBE COMO UN SUMATORIZO Z (X,Y) = *FORMULA* , SIENDO *FORMULA* EL INVERSO DE LOS PRODUCTOS DE LAS DISTANCIAS DEL PUNTO DE COORDENADAS X E Y A LOS VERTICES DEL TRIANGULO EN QUE ESTA INSCRITO, Y ZI LA ALTURA CORRESPONDIENTE AL PLANO QUE DEFINE EL TRIANGULO AL QUE ES INTERIOR EL MENCIONADO PUNTO. ES DE ESPECIAL APLICACION A LENTES OFTALMICAS EN LAS QUE EL MERIDIANO PRINCIPAL DESCRIBE UNA CURVA QUE SIGUE FIELMENTE LA TRAYECTORIA DE CONVERGENCIA DE LOS OJOS AL PASAR DE VISION LEJANA A PROXIMA.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES8902041A ES2013548A6 (es) | 1989-06-12 | 1989-06-12 | Perfeccionamientos en lentes progresivas. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES8902041A ES2013548A6 (es) | 1989-06-12 | 1989-06-12 | Perfeccionamientos en lentes progresivas. |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2013548A6 true ES2013548A6 (es) | 1990-05-01 |
Family
ID=8262468
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES8902041A Expired - Fee Related ES2013548A6 (es) | 1989-06-12 | 1989-06-12 | Perfeccionamientos en lentes progresivas. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES2013548A6 (es) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1076840A4 (en) * | 1999-03-04 | 2004-03-03 | Shamir Optical Industry | METHOD FOR DESIGNING MULTIFOCAL OPTICAL ELEMENTS |
WO2005026825A1 (en) * | 2003-09-05 | 2005-03-24 | Regents Of The University Of Minnesota | Multifocal optical device design |
-
1989
- 1989-06-12 ES ES8902041A patent/ES2013548A6/es not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1076840A4 (en) * | 1999-03-04 | 2004-03-03 | Shamir Optical Industry | METHOD FOR DESIGNING MULTIFOCAL OPTICAL ELEMENTS |
WO2005026825A1 (en) * | 2003-09-05 | 2005-03-24 | Regents Of The University Of Minnesota | Multifocal optical device design |
US7044601B2 (en) | 2003-09-05 | 2006-05-16 | Regents Of The University Of Minnesota | Multifocal optical device design |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
GC1A | Exploitation certificate registered application without search report |
Effective date: 19990804 |
|
GC1A | Exploitation certificate registered application without search report |
Effective date: 20021121 |
|
FD1A | Patent lapsed |
Effective date: 20060613 |