IT1258706B - Lente oftalmica multifocale - Google Patents

Lente oftalmica multifocale

Info

Publication number
IT1258706B
IT1258706B ITTO920918A ITTO920918A IT1258706B IT 1258706 B IT1258706 B IT 1258706B IT TO920918 A ITTO920918 A IT TO920918A IT TO920918 A ITTO920918 A IT TO920918A IT 1258706 B IT1258706 B IT 1258706B
Authority
IT
Italy
Prior art keywords
lens
area
addition
power
value
Prior art date
Application number
ITTO920918A
Other languages
English (en)
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9418809&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=IT1258706(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed filed Critical
Publication of ITTO920918A0 publication Critical patent/ITTO920918A0/it
Publication of ITTO920918A1 publication Critical patent/ITTO920918A1/it
Application granted granted Critical
Publication of IT1258706B publication Critical patent/IT1258706B/it

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
    • G02C7/063—Shape of the progressive surface
    • G02C7/065—Properties on the principal line
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)
  • Prostheses (AREA)

Abstract

Questa lente ha una superficie asferica (S) presentante una zona (VL) per la visione lontana, una zona (VP) per la visione vicina e, fra queste due zone, una zona (VI) per la visione intermedia, con una curva meridiana (NM') lungo la quale la curvatura della superficie varia progressivamente e che è inclinata dall'alto al basso verso il lato nasale della lente almeno nella zona (VI). La parte della curva mediana situata nelle zone (VI e VP) comprende un segmento (DC) che forma con la verticale un angolo , il cui valore è funzione crescente dell'aggiunta di potenza A della lente. Nel sistema di coordinate (X'X, Y'Y), il punto (C) del segmento (DC) ha un'ordinata il cui valore è pure funzione crescente dell'aggiunta A. Nel punto (C), la superficie (S) ha un valore di sfera media che corrisponde ad un'aggiunta di potenza compresa tra 0,8 e 0,92 volte l'aggiunta nominale di potenza della lente.Fig. 1
ITTO920918A 1991-11-12 1992-11-10 Lente oftalmica multifocale IT1258706B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9113874A FR2683643B1 (fr) 1991-11-12 1991-11-12 Lentille ophtalmique multifocale progressive.

Publications (3)

Publication Number Publication Date
ITTO920918A0 ITTO920918A0 (it) 1992-11-10
ITTO920918A1 ITTO920918A1 (it) 1994-05-10
IT1258706B true IT1258706B (it) 1996-02-27

Family

ID=9418809

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO920918A IT1258706B (it) 1991-11-12 1992-11-10 Lente oftalmica multifocale

Country Status (8)

Country Link
US (1) US5272495A (it)
JP (1) JP2859055B2 (it)
AU (1) AU650407B2 (it)
BR (1) BR9204390A (it)
CA (1) CA2082620C (it)
FR (1) FR2683643B1 (it)
GB (1) GB2261526B (it)
IT (1) IT1258706B (it)

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2683642B1 (fr) * 1991-11-12 1994-01-14 Essilor Internal Cie Gle Optique Lentille ophtalmique multifocale progressive.
JP3480470B2 (ja) * 1993-05-31 2003-12-22 株式会社ニコン 累進多焦点レンズ
US5724120A (en) * 1995-10-02 1998-03-03 Svochak; Jan B. Multifocal contact lens and method and apparatus for making the same
EP0809127B9 (en) * 1995-11-24 2010-06-23 Seiko Epson Corporation Multifocal lens for eyeglasses and eyeglass lens
US5812237A (en) * 1995-11-27 1998-09-22 Roddy; Kenneth C. Ophthalmic no-line progressive addition lenses
US5715032A (en) * 1996-03-19 1998-02-03 Optical Radiation Corporation Progressive addition power ophthalmic lens
WO1997038343A1 (en) * 1996-04-04 1997-10-16 Sola International Holdings Ltd. Progressive lens elements and methods for designing and using same
JP3733713B2 (ja) 1997-10-30 2006-01-11 日本精工株式会社 トロイダル型無段変速機
IL123574A0 (en) 1998-03-05 1998-10-30 Holo Or Ltd Progressive multifocal lens construction for eyeglasses
JP3881449B2 (ja) 1998-04-17 2007-02-14 ペンタックス株式会社 累進多焦点レンズの加工方法
EP0994375B1 (en) * 1998-10-16 2006-12-27 Essilor International Method of making a pair of multifocal progressive spectacle lenses
EP1147448A4 (en) 1998-12-16 2008-12-10 Novartis Ag MULTIFOCAL CONTACT LENSES WITH ASPHERIC SURFACES
FR2788861B1 (fr) 1999-01-22 2001-03-30 Essilor Int Lentille ophtalmique multifocale progressive
AUPQ065599A0 (en) 1999-05-31 1999-06-24 Sola International Holdings Ltd Progressive lens
US20010031959A1 (en) * 1999-12-29 2001-10-18 Rozakis George W. Method and system for treating presbyopia
FR2809193B1 (fr) * 2000-05-16 2002-08-09 Essilor Int Lentille ophtalmique multifocale progressive a variation de puissance rapide
FR2820515B1 (fr) 2001-02-02 2003-05-16 Essilor Int Lentille ophtalmique multifocale progressive a variation de puissance rapide
FR2820516B1 (fr) 2001-02-02 2003-05-16 Essilor Int Lentille ophtalmique multifocale progressive a variation de puissance rapide
FR2850763B1 (fr) * 2003-02-03 2005-07-01 Essilor Int Lentille aphtalmique a addition progressive de puissance et de prisme
FR2858693B1 (fr) 2003-08-08 2005-10-28 Essilor Int Procede de determination d'une lentille ophtalmique utilisant une prescription d'astigmatisme en vision de loin et en vision de pres
DE10349726A1 (de) * 2003-10-23 2005-06-09 Rodenstock Gmbh Bildschirmarbeitsplatzglas
DE10349721A1 (de) * 2003-10-23 2005-06-09 Rodenstock Gmbh Individueles Brillenglas
FR2874709B1 (fr) * 2004-08-27 2006-11-24 Essilor Int Procede de determination d'une paire de lentilles ophtalmiques progressives
FR2881846B1 (fr) * 2005-02-08 2007-05-11 Essilor Int Procede de definition d'une face supplementaire pour lunettes
JP4229118B2 (ja) * 2005-03-09 2009-02-25 セイコーエプソン株式会社 累進屈折力レンズの設計方法
FR2884325B1 (fr) * 2005-04-08 2007-06-01 Essilor Int Lentille ophtalmique
FR2888344B1 (fr) * 2005-07-11 2007-09-14 Essilor Int Lentille ophtalmique
FR2893151B1 (fr) 2005-11-08 2008-02-08 Essilor Int Lentille ophtalmique.
FR2894038B1 (fr) 2005-11-29 2008-03-07 Essilor Int Lentille ophtalmique.
FR2894687B1 (fr) 2005-12-13 2008-02-15 Essilor Int Procede de determination d'une lentille ophtalmique progressive
FR2894688B1 (fr) 2005-12-13 2008-02-15 Essilor Int Procede de determination d'un jeu de lentilles ophtalmiques multifocales progressives.
FR2895092B1 (fr) 2005-12-16 2008-02-29 Essilor Int Procede de determination d'une lentille ophtalmique.
FR2898193B1 (fr) * 2006-03-01 2008-05-09 Essilor Int Procede de determination d'une lentille ophtalmique progressive.
FR2898194B1 (fr) * 2006-03-01 2008-05-02 Essilor Int Procede de determination d'une lentille ophtalmique progressive.
FR2898993B1 (fr) * 2006-03-24 2008-08-01 Essilor Int Procede de determination d'une lentille ophtalmique progressive
FR2908191B1 (fr) * 2006-11-07 2008-12-26 Essilor Int Lentille ophtalmique
FR2911696B1 (fr) * 2007-01-24 2009-10-30 Essilor Int Verre ophtalmique progressif a inset personnalise.
JP2008189254A (ja) * 2007-02-07 2008-08-21 Shimano Inc 自転車用リアスプロケット組立体及びスプロケット
WO2009058310A1 (en) 2007-10-30 2009-05-07 Visionware Llc Progressive reading and intermediate distance lens defined by employment of a zernike expansion
EP2075622A3 (fr) 2007-11-27 2010-01-13 Optofinanz AG Lentilles ophtalmiques multifocales progressives à distribution constante
US8256895B2 (en) * 2008-02-20 2012-09-04 Swissphonics Sa Progressive multifocal ophthalmic lenses identically optimized over a wide range of refractive indices, base curves, and additions
FR2928744B1 (fr) * 2008-03-11 2012-03-16 Essilor Int Serie de lentilles ophtalmiques progressives
US8100529B2 (en) * 2008-07-31 2012-01-24 Hoya Corporation Progressive-addition lens
FR2941060B1 (fr) 2009-01-13 2011-04-22 Essilor Int Procede de determination d'une nappe d'aspherisation destinee a une lentille ophtalmique
FR2945874A1 (fr) * 2009-05-20 2010-11-26 Essilor Int Lentille ophtalmique de type unifocale
FR2950983A1 (fr) 2009-10-01 2011-04-08 Essilor Int Procede de determination, d'optimisation et de fabrication d'une lentille ophtalmique et ensemble de lentilles ophtalmiques
FR2956223B1 (fr) 2010-02-09 2012-04-13 Essilor Int Lentille ophtalmique multifocale progressive
FR2956222B1 (fr) 2010-02-09 2012-07-27 Essilor Int Lentille ophtalmique multifocale progressive
JP5566823B2 (ja) * 2010-09-14 2014-08-06 ホーヤ レンズ マニュファクチャリング フィリピン インク 累進屈折力眼鏡レンズの設計方法
US9057886B2 (en) * 2011-04-14 2015-06-16 Fssilor International (Compagnie Generale D'optique) Methods of designing progressive addition lenses

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE755907A (fr) * 1969-09-11 1971-02-15 Lunetiers Lentilles a puissance focale progressive
FR2193989B2 (it) * 1972-07-26 1975-03-07 Essilor Int
DE2814916C3 (de) * 1978-04-06 1982-01-07 Optische Werke G. Rodenstock, 8000 München Brillenglas mit einem zwischen Fernteil und Nahteil liegenden Progressionsbereich
EP0027339A3 (en) * 1979-10-11 1981-05-06 U.K. Wiseman Limited Progressive power ophthalmic lenses
DE3016935C2 (de) * 1980-05-02 1991-01-24 Fa. Carl Zeiss, 7920 Heidenheim Multifokale Brillenlinse mit gebietsweise gleitendem Brechwert
FR2495789B1 (fr) * 1980-12-05 1986-02-14 Suwa Seikosha Kk Lentille multifocale progressive
JPS57210320A (en) * 1981-06-19 1982-12-23 Hoya Corp Progressive focus lens
JPS5988718A (ja) * 1982-11-12 1984-05-22 Hoya Corp 眼の輻輳を考慮した累進焦点眼鏡レンズ
US4676610A (en) * 1983-07-22 1987-06-30 Sola International Holdings Ltd. Method of making progressive lens surface and resulting article
GB2146791B (en) * 1983-09-16 1987-01-28 Suwa Seikosha Kk Progressive multifocal ophthalmic lens
DE3430334C2 (de) * 1984-08-17 1987-02-05 Optische Werke G. Rodenstock, 8000 München Progressives Brillenglas mit zwei asphärischen Flächen
DE3517321A1 (de) * 1985-05-14 1986-11-20 Fa. Carl Zeiss, 7920 Heidenheim Multifokale brillenlinse mit mindestens einer gleitsichtflaeche
JPH0690368B2 (ja) * 1985-07-09 1994-11-14 セイコーエプソン株式会社 累進多焦点レンズ及び眼鏡
FR2588672B1 (fr) * 1985-10-16 1989-01-13 Essilor Int Lentille ophtalmique multifocale et progressive
GB8528460D0 (en) * 1985-11-19 1985-12-24 Sola Int Holdings Multifocal lens
FR2617989B1 (fr) * 1987-07-07 1989-10-27 Essilor Int Lentille ophtalmique multifocale
JP2573956B2 (ja) * 1987-07-31 1997-01-22 ホ−ヤ株式会社 累進多焦点レンズ
WO1989004987A1 (en) * 1987-11-25 1989-06-01 Hitoshi Okano Multi-focal lens equipped with small progressive-focal lens
DE4012609A1 (de) * 1990-04-19 1991-10-24 Zeiss Carl Fa Gleitsichtflaeche fuer eine gleitsichtbrillenlinse
FR2683642B1 (fr) * 1991-11-12 1994-01-14 Essilor Internal Cie Gle Optique Lentille ophtalmique multifocale progressive.

Also Published As

Publication number Publication date
FR2683643B1 (fr) 1994-01-14
JPH0643404A (ja) 1994-02-18
GB9222491D0 (en) 1992-12-09
JP2859055B2 (ja) 1999-02-17
CA2082620C (fr) 1996-01-16
GB2261526A (en) 1993-05-19
US5272495A (en) 1993-12-21
BR9204390A (pt) 1993-05-18
AU2829592A (en) 1993-05-13
ITTO920918A1 (it) 1994-05-10
CA2082620A1 (fr) 1993-05-13
GB2261526B (en) 1995-05-31
ITTO920918A0 (it) 1992-11-10
FR2683643A1 (fr) 1993-05-14
AU650407B2 (en) 1994-06-16

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Effective date: 19971129