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
object
infinity
circle
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
Priority to FR126369 priority Critical
Priority to FR160767 priority
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

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)

Priority Applications (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 (26)

* 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, De
CA2115343A1 (en) * 1991-08-09 1993-02-18 Steve Newman Toric lens with axis mislocation latitude
DE4242267A1 (en) * 1992-12-15 1994-06-16 Rodenstock Optik G Spectacle lens with astigmatic effect
AT203835T (en) * 1994-03-30 2001-08-15 Rodenstock Optik G Progressive eyeglasses series
IL118065D0 (en) * 1995-05-04 1996-08-04 Johnson & Johnson Vision Prod Aspheric toric lens designs
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
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
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
CN100392473C (en) * 2002-10-04 2008-06-04 卡尔蔡斯视觉股份有限公司 Method for production of a lens and lens produced thus
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
EP2527908B1 (en) * 2004-10-25 2019-03-20 Johnson & Johnson Surgical Vision, Inc. Ophthalmic lens with multiple phase plates
US7922326B2 (en) 2005-10-25 2011-04-12 Abbott Medical Optics Inc. Ophthalmic lens with multiple phase plates
DE102005023126A1 (en) 2005-05-19 2006-11-23 Rodenstock Gmbh Series of spectacle lenses, method of manufacture
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
CN104755012B (en) 2012-08-31 2018-01-12 Amo格罗宁根私人有限公司 Polycyclic crystalline lens, system and method for extended focal depth
KR101842378B1 (en) 2013-10-04 2018-03-26 오프텍 비.브이. Ophthalmic lens for correcting astigmatism
WO2016034925A1 (en) 2014-09-02 2016-03-10 Dave, Jagrat Natavar Intraocular lens customized for astigmatism or combined astigmatism and presbyopia
EP3413841A1 (en) 2016-02-09 2018-12-19 AMO Groningen B.V. Progressive power intraocular lens, and methods of use and manufacture

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 (4)

* 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

Also Published As

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

Similar Documents

Publication Publication Date Title
DK2762953T3 (en) Asymmetric lens design and method of preventing and / or reducing myopia progression
Drasdo et al. Non-linear projection of the retinal image in a wide-angle schematic eye.
JP4183772B2 (en) Multifocal concentric annular lens and design method thereof
EP0398813B1 (en) Optical component such as intraocular implant or contact lens for correcting the human sight
CN1105312C (en) Aspheric toric lens designs
US4062629A (en) Progressive power ophthalmic lens having a plurality of viewing zone with discontinuous power variations therebetween
US4418991A (en) Presbyopic contact lens
US6142624A (en) Wide field spherical lenses and single design spectacle frames therefor
EP2212740B1 (en) Ophthalmic lens element
US6045578A (en) Optical treatment method
TWI426320B (en) Translating multifocal ophthalmic lenses
AU606519B2 (en) Multiple contour diffractive lens
DE69636319T2 (en) Toric multifocal contact lenses
TW490575B (en) Progressive addition lenses with varying power profiles
CA2501217C (en) Method for producing a lens, and a lens produced thereby
US4525043A (en) Contact lens
CN1833190B (en) Use distance vision and the optometry of near vision astigmatism to determine the method for eyeglass
EP3112925B1 (en) Contact lens comprising non-coaxial lenslets for preventing and/or slowing myopia progression
US6474814B1 (en) Multifocal ophthalmic lens with induced aperture
DE69629237T2 (en) Lenses with concentric rings with a fixed focus
US5517260A (en) Ophthalmic lens having a progressive multifocal zone and method of manufacturing same
US4240719A (en) Progressive ophthalmic lens
US9274351B2 (en) Method for optimizing the postural prism of an ophthalmic lens
US4010496A (en) Bifocal lens which positions within the anterior chamber
US3507565A (en) Variable-power lens and system

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee