EP2104878A1 - Procede de determination d'une lentille ophtalmique - Google Patents
Procede de determination d'une lentille ophtalmiqueInfo
- Publication number
- EP2104878A1 EP2104878A1 EP07870303A EP07870303A EP2104878A1 EP 2104878 A1 EP2104878 A1 EP 2104878A1 EP 07870303 A EP07870303 A EP 07870303A EP 07870303 A EP07870303 A EP 07870303A EP 2104878 A1 EP2104878 A1 EP 2104878A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lens
- wearer
- peripheral
- zone
- given
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000002093 peripheral effect Effects 0.000 claims abstract description 74
- 201000009310 astigmatism Diseases 0.000 claims abstract description 26
- 239000011521 glass Substances 0.000 claims description 19
- 238000005457 optimization Methods 0.000 claims description 17
- 230000004075 alteration Effects 0.000 claims description 5
- 230000000007 visual effect Effects 0.000 claims description 4
- 230000005043 peripheral vision Effects 0.000 abstract description 10
- 230000003287 optical effect Effects 0.000 description 25
- 230000007547 defect Effects 0.000 description 20
- 230000004438 eyesight Effects 0.000 description 9
- 230000006870 function Effects 0.000 description 9
- 238000012937 correction Methods 0.000 description 8
- 210000003128 head Anatomy 0.000 description 8
- 230000000750 progressive effect Effects 0.000 description 5
- 208000029091 Refraction disease Diseases 0.000 description 3
- 230000004430 ametropia Effects 0.000 description 3
- 210000000887 face Anatomy 0.000 description 3
- 208000014733 refractive error Diseases 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000004424 eye movement Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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
Definitions
- the optically useful area covers the entire lens which has a diameter of limited value.
- a peripheral zone may be provided on the periphery of the ophthalmic lens. This zone is said to be peripheral because it does not meet the prescribed optical correction conditions and has significant obliquity defects. The optical defects of the peripheral zone do not affect the visual comfort of the wearer because this area is outside the field of view of the wearer.
- an ophthalmic lens may have such a peripheral area.
- the lens has a large diameter which can be imposed by the shape of the frame, for example an elongated frame with a strong curve, or when the power prescription is high, the lens then having a thick edge or large center that is sought to reduce.
- a peripheral zone intended to improve the peripheral vision of the wearer. For example, distortion, chromatic aberrations, prismatic deviations or other optical parameters can be optimized in the peripheral area to the detriment of the prescribed optical correction.
- the glass has a spherical or toric surface of strong camber (or base), between 6 diopters and 10 diopters, and a calculated face specifically to achieve the optimal ametropia correction of the wearer at the optical center and in the field of view.
- strong camber of the front face causes a large thickness of the glass on the edges in the case of a negative lens or a large thickness of the glass in the center in the case of a positive lens. These high thicknesses increase the weight of the lenses, which affects the comfort of the wearer and make them unsightly.
- the edge thickness must be limited to allow mounting of the glass in the frame.
- US-A-6 199 983 proposes to customize a progressive lens according to the "lifestyle" of the wearer, for example taking into account Ia. shape of the mount.
- Nikon® sells under the brand name Seemax® a unifocal lens optimized according to the size and shape of the frame.
- the invention accordingly proposes a method for determining a personalized ophthalmic lens for a given wearer, the method comprising the steps of:
- FIG. 13 a graph of optical power carrying along the meridian of a lens according to a second embodiment of the invention optimized in thickness for an eyewash;
- FIGS. 14 and 15 optical power and astigmatism cards resulting for the lens of FIG. 13;
- Figures 16 and 17 are diagrammatic sectional views respectively for the lens of Figure 13 and for a non-optimized lens of the same prescription;
- the invention proposes a method for determining an ophthalmic lens having a central zone optimized in sharpness according to the wearer's prescription and an optimized peripheral zone so as to improve a given parameter of the lens, for example its thickness or a vision characteristic.
- peripheral such as distortion, prismatic effects, chromatic aberrations or others.
- the size of the central zone is determined according to the wearer's vision strategy and in particular according to his eye-head behavior.
- the invention proposes to adapt the size of the optically useful central area according to the wearer's eye-head behavior so that the optimization of the peripheral zone is maximal for a headwalker and is not perceived as a hindrance. for an eyewash.
- the eye-head behavior of the wearer can be measured for example with a VisionPrint System TM type device developed by the applicant.
- Eye-head coordination parameters are determined. These parameters may be those measured to define the lenses marketed under the trademark VARILUX IPSEO, namely a gain GA and a coefficient of stability ST.
- the gain GA is a parameter that gives the proportion of the movement of the head in the total movement of the gaze to reach a target.
- the gain GA can be defined as the ratio of the angle of the head to the angle of gaze for a fixed point in a given gaze direction.
- the gain has a value between 0.00 and 1.00.
- a gain value of 0.31 reflects behavior with predominant eye movement.
- the stability coefficient ST is a parameter that reflects the stability of the behavior, ie the standard deviation around the value of the gain. Most carriers are stable and the ST value is generally less than 0.15.
- the connection between the central and peripheral zones is done directly on the same surface when calculating optimization of the prescription surface of the lens.
- the peripheral zone is optimized to reduce the thickness, it is necessary to connect the central and peripheral zones by surface interpolation.
- the lens has a first face that can be spherical, or toric and a second complex face calculated to adapt the lens to the ametropia of the wearer and to optimize the thickness of the lens in the conditions of the worn.
- the three zones 15, 16 and 17 of the rear face are centered on the same point, preferably on the mounting cross which corresponds to the primary direction of gaze of the wearer in the conditions of the worn.
- the three zones 15, 16 and 17 of the rear face of the lens are of identical shape, this shape (circular, elliptical, or other) being chosen according to the frame and / or the prescription.
- the size of the central zone 15 is imposed by the eye-head behavior of the wearer and the connection zone 16 must have a width that is sufficiently large to limit the visibility of the transition and is sufficiently small for the peripheral zone 17 to allow a significant optimization of the thickness.
- the rear face and / or the front face of the lens can be varied.
- the face or faces that vary can be represented by Zernike polynomials; it is possible to use an aspherical sheet superimposed on one or other of the faces, and to vary this aspherical sheet.
- Optimization can use the techniques known per se. In particular, the depreciated least squares optimization (DLS) method can be used.
- DLS depreciated least squares optimization
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)
- Eye Examination Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0611252A FR2910645B1 (fr) | 2006-12-22 | 2006-12-22 | Procede de determination d'une lentille ophtalmique. |
PCT/FR2007/001897 WO2008081086A1 (fr) | 2006-12-22 | 2007-11-20 | Procede de determination d'une lentille ophtalmique |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2104878A1 true EP2104878A1 (fr) | 2009-09-30 |
Family
ID=38236194
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07870303A Withdrawn EP2104878A1 (fr) | 2006-12-22 | 2007-11-20 | Procede de determination d'une lentille ophtalmique |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100149492A1 (fr) |
EP (1) | EP2104878A1 (fr) |
JP (1) | JP5542447B2 (fr) |
FR (1) | FR2910645B1 (fr) |
WO (1) | WO2008081086A1 (fr) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8002404B2 (en) * | 2009-05-22 | 2011-08-23 | Polylite Taiwan Co., Ltd. | Prescription lens and method of making same |
EP2270577A1 (fr) * | 2009-06-30 | 2011-01-05 | Essilor International (Compagnie Générale D'Optique) | Procédé et appareil pour la génération d'une surface de lentille optique |
JP5415233B2 (ja) * | 2009-11-13 | 2014-02-12 | 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 | 眼鏡レンズの設計方法および製造方法 |
JP2012233959A (ja) | 2011-04-28 | 2012-11-29 | Seiko Epson Corp | 眼鏡用レンズ、眼鏡、眼鏡レンズの設計方法、及び設計装置 |
US8449111B2 (en) | 2011-10-28 | 2013-05-28 | Polylite Taiwan Co., Ltd. | Method of making prescription lens |
US10254563B2 (en) * | 2012-10-18 | 2019-04-09 | Essilor International | Method for determining an ophthalmic lens comprising an aspherical continuous layer on one of its faces and an aspherical Fresnel layer on one of its faces |
US20150331254A1 (en) * | 2012-12-31 | 2015-11-19 | Essilor International (Compagnie Generale D'optique | Multifocal ophthalmic lens |
EP2991820B1 (fr) * | 2013-04-29 | 2017-01-25 | Essilor International (Compagnie Générale D'Optique) | Procédé d'épaississement local d'une lentille ophtalmique |
US10203519B2 (en) * | 2014-04-01 | 2019-02-12 | Essilor International | Systems and methods for augmented reality |
WO2018142405A1 (fr) * | 2017-02-02 | 2018-08-09 | Shamir Optical Industry Ltd. | Lentille ophtalmique et procédé de conception d'une telle lentille |
GB2575842A (en) * | 2018-07-25 | 2020-01-29 | Shamir Optical Ind Ltd | Aspherical ophthalmic lens |
EP3663838A1 (fr) | 2018-12-03 | 2020-06-10 | Carl Zeiss Vision International GmbH | Verre de lunettes, famille de verres de lunettes, procédé de conception d'une famille de verres de lunettes et procédé de fabrication d'un verre de lunettes |
US11642018B1 (en) | 2020-01-15 | 2023-05-09 | Meta Platforms Technologies, Llc | Volumetric depth imaging for lens fit |
US11614638B1 (en) | 2020-01-15 | 2023-03-28 | Meta Platforms Technologies, Llc | Prescription optical element for selected head mounted device |
US11768378B1 (en) * | 2020-01-15 | 2023-09-26 | Meta Platforms Technologies, Llc | Prescription optical element based on optical-mechanical profile |
EP3985428A1 (fr) * | 2020-10-14 | 2022-04-20 | Essilor International | Procédé mis en uvre par ordinateur permettant de fournir une lentille ophtalmique finie à vision unique |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4079160A (en) * | 1977-02-07 | 1978-03-14 | Joseph Philipson | Abrasion-resistant optical element |
US4185897A (en) * | 1977-09-09 | 1980-01-29 | Frieder Philip M | Prosthetic aspheric spectacle lens for aphakia |
FR2638246B1 (fr) * | 1988-10-20 | 1991-01-25 | Essilor Int | Lentille ophtalmique de puissance positive et de grand diametre |
US5825454A (en) * | 1996-01-16 | 1998-10-20 | Hoya Corporation | Aspherical spectacle lens |
FR2753805B1 (fr) * | 1996-09-20 | 1998-11-13 | Essilor Int | Jeu de lentilles ophtalmiques multifocales progressives |
JP3944914B2 (ja) * | 1996-10-14 | 2007-07-18 | セイコーエプソン株式会社 | 累進多焦点レンズの製造方法 |
AUPO625797A0 (en) * | 1997-04-17 | 1997-05-15 | Sola International Holdings Ltd | Spectacles bearing sunglass lenses |
JP4263351B2 (ja) * | 1997-07-18 | 2009-05-13 | カール ツァイス ビジョン オーストラリア ホールディングス リミテッド | 表面補正レンズ |
WO1999063392A1 (fr) * | 1998-06-04 | 1999-12-09 | Sola International Holdings Ltd. | Verres ophtalmiques façonnes |
FR2783938B1 (fr) * | 1998-09-28 | 2000-11-17 | Essilor Int | Lentilles ophtalmiques toriques |
US6176577B1 (en) * | 1998-10-15 | 2001-01-23 | Oracle Lens Manufacturing Corporation | Aspheric lenses |
AUPQ591800A0 (en) * | 2000-02-25 | 2000-03-23 | Sola International Holdings Ltd | System for prescribing and/or dispensing ophthalmic lenses |
US6609793B2 (en) * | 2000-05-23 | 2003-08-26 | Pharmacia Groningen Bv | Methods of obtaining ophthalmic lenses providing the eye with reduced aberrations |
WO2002088828A1 (fr) * | 2001-04-26 | 2002-11-07 | Hoya Corporation | Procede de conception de verres de lunettes et verres de lunettes |
JP4190764B2 (ja) * | 2002-01-18 | 2008-12-03 | セイコーオプティカルプロダクツ株式会社 | 非球面眼鏡レンズ |
US7090348B2 (en) * | 2003-10-28 | 2006-08-15 | Essilor International (Compagnie Generale D'optique) | Method for designing spectacle lenses taking into account an individual's head and eye movement |
DE102004025712A1 (de) * | 2004-05-26 | 2005-12-15 | Rupp + Hubrach Optik Gmbh | Gleitsichtlinse |
CA2587323A1 (fr) * | 2004-11-16 | 2006-05-26 | Essilor International (Compagnie Generale D'optique) | Procede de conception de verres de lunettes prenant en compte le mouvement de la tete et des yeux d'un individu |
PT1877855E (pt) * | 2005-05-05 | 2015-09-24 | Carl Zeiss Vision Au Holding | Arranjo de elementos de lente oftálmica progressiva |
JP2009511962A (ja) * | 2005-10-12 | 2009-03-19 | カール ツァイス ビジョン オーストラリア ホールディングス リミテッド | 近視矯正のための眼科用レンズ要素 |
FR2898194B1 (fr) * | 2006-03-01 | 2008-05-02 | Essilor Int | Procede de determination d'une lentille ophtalmique progressive. |
-
2006
- 2006-12-22 FR FR0611252A patent/FR2910645B1/fr not_active Expired - Fee Related
-
2007
- 2007-11-20 WO PCT/FR2007/001897 patent/WO2008081086A1/fr active Application Filing
- 2007-11-20 JP JP2009542122A patent/JP5542447B2/ja not_active Expired - Fee Related
- 2007-11-20 US US12/520,865 patent/US20100149492A1/en not_active Abandoned
- 2007-11-20 EP EP07870303A patent/EP2104878A1/fr not_active Withdrawn
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2008081086A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2008081086A8 (fr) | 2010-04-01 |
US20100149492A1 (en) | 2010-06-17 |
FR2910645B1 (fr) | 2009-07-03 |
WO2008081086A1 (fr) | 2008-07-10 |
JP5542447B2 (ja) | 2014-07-09 |
FR2910645A1 (fr) | 2008-06-27 |
JP2010513967A (ja) | 2010-04-30 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20090722 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR |
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RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: ALLIONE, PASCAL Inventor name: DE GAUDEMARIS, DIANE |
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DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20160909 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ESSILOR INTERNATIONAL |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20190103 |