GB1239620A - - Google Patents

Info

Publication number
GB1239620A
GB1239620A GB1239620DA GB1239620A GB 1239620 A GB1239620 A GB 1239620A GB 1239620D A GB1239620D A GB 1239620DA GB 1239620 A GB1239620 A GB 1239620A
Authority
GB
United Kingdom
Prior art keywords
lens
eye
infinity
circle
distances
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
Application number
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 filed Critical
Publication of GB1239620A publication Critical patent/GB1239620A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02CSPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00Optical parts
    • G02C7/02Lenses; Lens systems ; Methods of designing lenses

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)

Abstract

1,239,620. Ophthalmic lenses. SOC DES LUNETIERS. Oct. 28, 1968 [Oct. 30, 1967; July 26, 1968], No. 51043/68. Heading G2J. If an eye 1, Fig. 1, looking at an object at infinity along the optical axis 3 of an ophthalmic lens 2 finds that the correction for ametropia is perfect and the lens 2 forms an image at R o , in the absence of eye 1, then when the eye 1 rotates about its centre of rotation O through an angle U the image of an object at infinity should be formed by lens 2 at a point R on sphere 5 centred at O and passing through R o , but in practice a spherical surfaced lens 2 forms a sagittal focus at S and tangential focus at T with the circle of least confusion at I. Accordingly the present lens has a surface shaped to eliminate or reduce the astigmatism TS and/or the field curvature I R particularly in the case of high power toric lenses such as those having a power greater than 12 D required in aphakia. This is achieved by taking a circle, passing through H and having a radius of approximately 27 or 28 mm, and evaluating along the two principal meridians the distances required from points on the circle K, G, etc. to the corrected lens surface and tabulating them as a function of angle U. For a progressive foci lens the correcting surface is evaluated along the vertical meridian on the basis of an object distance which gets progressively less as the eye looks downwardly, or for a lens of two or three focal lengths it is evaluated for the appropriate two or three object distances such as infinity, intermediate and reading distances.
GB1239620D 1967-10-30 1968-10-28 Expired GB1239620A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR126369 1967-10-30
FR160767 1968-07-26

Publications (1)

Publication Number Publication Date
GB1239620A true GB1239620A (en) 1971-07-21

Family

ID=26180405

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1239620D Expired GB1239620A (en) 1967-10-30 1968-10-28

Country Status (3)

Country Link
US (1) US3722986A (en)
DE (1) DE1805561C3 (en)
GB (1) GB1239620A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5444503A (en) * 1992-03-27 1995-08-22 Carl-Zeiss-Stiftung Spectacle lens
EP0857993A2 (en) 1997-01-16 1998-08-12 Carl Zeiss Spectacle glass having a spherical front surface and a multifocal back surface, and method for manufacturing the same
US9618774B2 (en) 2014-02-10 2017-04-11 Shamir Optical Industry Ltd. Quasi progressive lenses for eyewear

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3016936C2 (en) * 1980-05-02 1983-12-01 Fa. Carl Zeiss, 7920 Heidenheim Spectacle lens with astigmatic power
EP0597994A4 (en) * 1991-08-09 1994-09-14 Capricornia Contact Lens Toric lens with axis mislocation latitude.
DE4242267A1 (en) * 1992-12-15 1994-06-16 Rodenstock Optik G Spectacle lens with astigmatic effect
ATE224552T1 (en) * 1994-03-30 2002-10-15 Rodenstock Optik G PROGRESSIVE LENSES SERIES
IL118065A0 (en) * 1995-05-04 1996-08-04 Johnson & Johnson Vision Prod Aspheric toric lens designs
US5825455A (en) * 1996-05-02 1998-10-20 Cabot Safety Intermediate Corporation Aspheric plano eyewear
US6276795B1 (en) 1996-05-02 2001-08-21 Aearo Company Protective eyewear with adjustable strap
US6024446A (en) 1996-05-02 2000-02-15 Cabot Safety Intermediate Corporation Eyewear with hingedly attached strapped head retainer
US6149268A (en) * 1996-05-02 2000-11-21 Cabot Safety Intermediate Corporation Protective eyewear with at least one ventilation channel
US6183084B1 (en) * 1998-07-30 2001-02-06 Johnson & Johnson Vision Care, Inc. Progressive addition lenses
US6149271A (en) * 1998-10-23 2000-11-21 Innotech, Inc. 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
JP5096662B2 (en) * 2002-10-04 2012-12-12 カール ツアイス ヴィジョン ゲーエムベーハー Lens manufacturing method and lens manufactured by the method
SE0203564D0 (en) 2002-11-29 2002-11-29 Pharmacia Groningen Bv Multifocal opthalmic lens
US7896916B2 (en) * 2002-11-29 2011-03-01 Amo Groningen B.V. Multifocal ophthalmic lens
FR2858693B1 (en) 2003-08-08 2005-10-28 Essilor Int METHOD FOR DETERMINING AN OPHTHALMIC LENS USING AN ASTIGMATISM PRESCRIPTION IN VIEW OF FAR AND IN VISION OF PRES
US7922326B2 (en) 2005-10-25 2011-04-12 Abbott Medical Optics Inc. Ophthalmic lens with multiple phase plates
WO2006068696A1 (en) * 2004-10-25 2006-06-29 Advanced Medical Optics, Inc. Ophthalmic lens with multiple phase plates
DE102005023126B4 (en) * 2005-05-19 2022-06-30 Rodenstock Gmbh Series of spectacle lenses, manufacturing process
US7407283B2 (en) * 2005-09-14 2008-08-05 Fosta-Tek Optics, Inc. Goggle lens, method of manufacturing same, and goggle containing same
US20090262301A1 (en) * 2008-04-22 2009-10-22 Jennifer Zuba Toric Contact Lenses Having Selected Spherical Aberration Characteristics
EP2890287B1 (en) 2012-08-31 2020-10-14 Amo Groningen B.V. Multi-ring lens, systems and methods for extended depth of focus
CN105659152B (en) 2013-10-04 2019-05-03 欧福特克有限公司 For correcting the eyeglass of astigmatism
WO2016034925A1 (en) 2014-09-02 2016-03-10 Dave, Jagrat Natavar Intraocular lens customized for astigmatism or combined astigmatism and presbyopia
US10028825B2 (en) 2016-02-09 2018-07-24 Amo Groningen B.V. Progressive power intraocular lens, and methods of use and manufacture
US11497599B2 (en) 2017-03-17 2022-11-15 Amo Groningen B.V. Diffractive intraocular lenses for extended range of vision
US11523897B2 (en) 2017-06-23 2022-12-13 Amo Groningen B.V. Intraocular lenses for presbyopia treatment
EP3646110A1 (en) 2017-06-28 2020-05-06 Amo Groningen B.V. Diffractive lenses and related intraocular lenses for presbyopia treatment
WO2019002390A1 (en) 2017-06-28 2019-01-03 Amo Groningen B.V. Extended range and related intraocular lenses for presbyopia treatment
US11327210B2 (en) 2017-06-30 2022-05-10 Amo Groningen B.V. Non-repeating echelettes and related intraocular lenses for presbyopia treatment
NL2023797B1 (en) * 2019-09-09 2021-04-13 Jozephus Cyrillus Ludovicus Bruls Georgius Progressive addition eyeglass lens and method for manufacturing the same
CA3166308A1 (en) 2019-12-30 2021-07-08 Amo Groningen B.V. Lenses having diffractive profiles with irregular width for vision treatment

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US949501A (en) * 1909-06-03 1910-02-15 Zeiss Carl Fa Spectacle-glass.
US3169247A (en) * 1959-12-09 1965-02-09 American Optical Corp Ophthalmic aspheric lens series
US3227507A (en) * 1961-08-16 1966-01-04 Feinbloom William Corneal contact lens having inner ellipsoidal surface

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5444503A (en) * 1992-03-27 1995-08-22 Carl-Zeiss-Stiftung Spectacle lens
EP0857993A2 (en) 1997-01-16 1998-08-12 Carl Zeiss Spectacle glass having a spherical front surface and a multifocal back surface, and method for manufacturing the same
US9618774B2 (en) 2014-02-10 2017-04-11 Shamir Optical Industry Ltd. Quasi progressive lenses for eyewear
US10409087B2 (en) 2014-02-10 2019-09-10 Shamir Optical Industry Ltd. Quasi progressive lenses for eyewear
US11226496B2 (en) 2014-02-10 2022-01-18 Shamir Optical Industry Ltd. Quasi progressive lenses for eyewear

Also Published As

Publication number Publication date
DE1805561C3 (en) 1980-10-23
DE1805561A1 (en) 1969-05-14
DE1805561B2 (en) 1980-03-06
US3722986A (en) 1973-03-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee