CA2250616A1 - Ophthalmic lens - Google Patents

Ophthalmic lens

Info

Publication number
CA2250616A1
CA2250616A1 CA002250616A CA2250616A CA2250616A1 CA 2250616 A1 CA2250616 A1 CA 2250616A1 CA 002250616 A CA002250616 A CA 002250616A CA 2250616 A CA2250616 A CA 2250616A CA 2250616 A1 CA2250616 A1 CA 2250616A1
Authority
CA
Canada
Prior art keywords
delta
lens
geometrical center
ophthalmic lens
cylinder
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.)
Granted
Application number
CA002250616A
Other languages
French (fr)
Other versions
CA2250616C (en
Inventor
Claude Pedrono
Christian Harsigny
Catherine Fauquier
Fanny Jurkiewiez
Eric Roland
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.)
EssilorLuxottica SA
Original Assignee
Essilor International
Claude Pedrono
Christian Harsigny
Catherine Fauquier
Fanny Jurkiewiez
Eric Roland
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=9512326&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2250616(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Essilor International, Claude Pedrono, Christian Harsigny, Catherine Fauquier, Fanny Jurkiewiez, Eric Roland filed Critical Essilor International
Publication of CA2250616A1 publication Critical patent/CA2250616A1/en
Application granted granted Critical
Publication of CA2250616C publication Critical patent/CA2250616C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G02C7/063—Shape of the progressive surface
    • G02C7/066—Shape, location or size of the viewing zones
    • 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

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 .DELTA. 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..
CA002250616A 1997-10-16 1998-10-15 Ophthalmic lens Expired - Fee Related CA2250616C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9712987A FR2769997B1 (en) 1997-10-16 1997-10-16 MULTIFOCAL OPHTHALMIC LENS
FR9712987 1997-10-16

Publications (2)

Publication Number Publication Date
CA2250616A1 true CA2250616A1 (en) 1999-04-16
CA2250616C CA2250616C (en) 2006-03-14

Family

ID=9512326

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002250616A Expired - Fee Related CA2250616C (en) 1997-10-16 1998-10-15 Ophthalmic lens

Country Status (10)

Country Link
US (1) US6116734A (en)
EP (1) EP0911671B1 (en)
JP (1) JPH11194310A (en)
CN (1) CN1166976C (en)
AU (1) AU751219B2 (en)
BR (1) BR9804422B1 (en)
CA (1) CA2250616C (en)
DE (1) DE69801476T2 (en)
ES (1) ES2163240T3 (en)
FR (1) FR2769997B1 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6343861B1 (en) † 1998-06-12 2002-02-05 Sola International Holdings, Ltd. Myopia lens
WO2001025837A1 (en) * 1999-10-01 2001-04-12 Sola International Holdings Ltd Progressive lens
FR2809193B1 (en) * 2000-05-16 2002-08-09 Essilor Int PROGRESSIVE MULTIFOCAL OPHTHALMIC LENS WITH FAST POWER VARIATION
US6390623B1 (en) 2000-03-29 2002-05-21 Johnson & Johnson Vision Care, Inc. Customized progressive addition lenses
US6609793B2 (en) * 2000-05-23 2003-08-26 Pharmacia Groningen Bv Methods of obtaining ophthalmic lenses providing the eye with reduced aberrations
US8020995B2 (en) 2001-05-23 2011-09-20 Amo Groningen Bv Methods of obtaining ophthalmic lenses providing the eye with reduced aberrations
FR2820515B1 (en) * 2001-02-02 2003-05-16 Essilor Int PROGRESSIVE MULTIFOCAL OPHTHALMIC LENS WITH FAST POWER VARIATION
US6786600B2 (en) * 2002-05-01 2004-09-07 Shamir Optical Industry Methods for generating a progressive surface and for production of multifocal progressive lenses
FR2871248B1 (en) * 2004-06-03 2006-09-08 Essilor Int OPHTHALMIC LENS
FR2871247B1 (en) 2004-06-04 2006-09-15 Essilor Int OPHTHALMIC LENS
FR2881846B1 (en) 2005-02-08 2007-05-11 Essilor Int METHOD FOR DEFINING AN EXTRA FACE FOR EYEWEAR
FR2884325B1 (en) 2005-04-08 2007-06-01 Essilor Int OPHTHALMIC LENS
FR2888344B1 (en) 2005-07-11 2007-09-14 Essilor Int OPHTHALMIC LENS
FR2893151B1 (en) 2005-11-08 2008-02-08 Essilor Int OPHTHALMIC LENS.
FR2894038B1 (en) * 2005-11-29 2008-03-07 Essilor Int OPHTHALMIC LENS.
FR2895092B1 (en) 2005-12-16 2008-02-29 Essilor Int METHOD FOR DETERMINING AN OPHTHALMIC LENS
WO2009141509A1 (en) 2008-05-19 2009-11-26 Ice Foster Ltd. Ophthalmic glass and spectacles comprising at least such one glass
FR2954196B1 (en) * 2009-12-21 2012-01-20 Essilor Int MACHINING METHOD FOR TURNING A FACE OF A GLASS OF GLASSES
EP2506063A1 (en) * 2011-03-31 2012-10-03 ESSILOR INTERNATIONAL (Compagnie Générale d'Optique) Progressive ophthalmic lens
US20160209556A1 (en) * 2015-01-16 2016-07-21 Valve Corporation Low f/# lens

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2588973B1 (en) * 1985-10-23 1988-01-08 Essilor Int PROGRESSIVE OPHTHALMIC LENS
FR2683642B1 (en) * 1991-11-12 1994-01-14 Essilor Internal Cie Gle Optique PROGRESSIVE MULTIFOCAL OPHTHALMIC LENS.
FR2699294B1 (en) * 1992-12-11 1995-02-10 Essilor Int Progressive multifocal ophthalmic lens.
FR2733328B1 (en) * 1995-04-21 1997-06-13 Essilor Int PROGRESSIVE MULTIFOCAL OPHTHALMIC LENS

Also Published As

Publication number Publication date
FR2769997B1 (en) 1999-12-31
BR9804422B1 (en) 2011-10-04
CN1215842A (en) 1999-05-05
EP0911671B1 (en) 2001-08-29
AU8934498A (en) 1999-05-06
EP0911671A1 (en) 1999-04-28
US6116734A (en) 2000-09-12
BR9804422A (en) 1999-11-03
CN1166976C (en) 2004-09-15
AU751219B2 (en) 2002-08-08
DE69801476T2 (en) 2002-05-29
DE69801476D1 (en) 2001-10-04
FR2769997A1 (en) 1999-04-23
ES2163240T3 (en) 2002-01-16
CA2250616C (en) 2006-03-14
JPH11194310A (en) 1999-07-21

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20161017