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
triangle
formula
progressive lenses
last
xeya
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 - Lifetime
Application number
ES8902041A
Other languages
English (en)
Inventor
Puigbert Narciso Tusell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Indo Internacional SA
Original Assignee
Indo Internacional SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Indo Internacional SA filed Critical Indo Internacional SA
Priority to ES8902041A priority Critical patent/ES2013548A6/es
Publication of ES2013548A6 publication Critical patent/ES2013548A6/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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.
ES8902041A 1989-06-12 1989-06-12 Perfeccionamientos en lentes progresivas. Expired - Lifetime ES2013548A6 (es)

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 - Lifetime ES2013548A6 (es) 1989-06-12 1989-06-12 Perfeccionamientos en lentes progresivas.

Country Status (1)

Country Link
ES (1) ES2013548A6 (es)

Cited By (2)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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