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IE810553L - Progressive power opthalmic lenses - Google Patents

Progressive power opthalmic lenses

Info

Publication number
IE810553L
IE810553L IE810553A IE55381A IE810553L IE 810553 L IE810553 L IE 810553L IE 810553 A IE810553 A IE 810553A IE 55381 A IE55381 A IE 55381A IE 810553 L IE810553 L IE 810553L
Authority
IE
Ireland
Prior art keywords
progressive power
opthalmic lenses
lens
cylinder surfaces
progressive
Prior art date
Application number
IE810553A
Other versions
IE50992B1 (en
Original Assignee
Ao Inc
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 by Ao Inc filed Critical Ao Inc
Publication of IE810553L publication Critical patent/IE810553L/en
Publication of IE50992B1 publication Critical patent/IE50992B1/en

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

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

An ophthalmic lens for the correction of presbyopia having a progressive power surface generated by the line of intersection of an ordered sequence of intersecting spheres and cylinder surfaces, the cylinder surfaces being so chosen as to produce a uniform distribution of aberration and optical power for gently curving smooth optical effect. The progressive power surface surrounds at least a major portion of the boundary of a near viewing surface of substantially spherical configuration. The lens has opposite concave and convex surfaces. <IMAGE> [GB2092772A]
IE553/81A 1981-02-09 1981-03-13 Progressive power ophthalmic lenses IE50992B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US23275581A 1981-02-09 1981-02-09

Publications (2)

Publication Number Publication Date
IE810553L true IE810553L (en) 1982-08-09
IE50992B1 IE50992B1 (en) 1986-09-03

Family

ID=22874431

Family Applications (1)

Application Number Title Priority Date Filing Date
IE553/81A IE50992B1 (en) 1981-02-09 1981-03-13 Progressive power ophthalmic lenses

Country Status (12)

Country Link
JP (1) JPS57139718A (en)
AU (1) AU532218B2 (en)
BR (1) BR8101927A (en)
CA (1) CA1153228A (en)
CH (1) CH641572A5 (en)
FR (1) FR2499725B1 (en)
GB (1) GB2092772B (en)
IE (1) IE50992B1 (en)
IT (1) IT8148143A0 (en)
MX (1) MX153400A (en)
NL (1) NL189879C (en)
SE (1) SE451772B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59151128A (en) * 1983-02-17 1984-08-29 Hoya Corp Progressive multifocus spectacle lens
US4676610A (en) * 1983-07-22 1987-06-30 Sola International Holdings Ltd. Method of making progressive lens surface and resulting article
US4861153A (en) * 1986-12-19 1989-08-29 American Optical Corporation Progressive addition spectacle lens
US5123725A (en) * 1986-12-19 1992-06-23 American Optical Corporation Progressive addition spectacle lens
US4838675A (en) * 1987-06-19 1989-06-13 Sola International Holdings, Ltd. Method for improving progressive lens designs and resulting article
FR2617989B1 (en) * 1987-07-07 1989-10-27 Essilor Int MULTIFOCAL OPHTHALMIC LENS
JP2756670B2 (en) * 1987-11-30 1998-05-25 旭光学工業株式会社 Progressive multifocal spectacle lens
US5285222A (en) * 1992-11-20 1994-02-08 Gentex Optics, Inc. Progressive lens series
FR2704327B1 (en) * 1993-04-23 1995-06-23 Essilor Int Pair of progressive multifocal ophthalmic lenses.
US5812237A (en) * 1995-11-27 1998-09-22 Roddy; Kenneth C. Ophthalmic no-line progressive addition lenses
CN101174032B (en) * 2002-05-31 2011-04-13 克劳斯鲍斯光学有限公司 Glasses lens progressively increasing light intensity
JP4973027B2 (en) 2005-08-22 2012-07-11 セイコーエプソン株式会社 Progressive power lens
JP2011070234A (en) * 2005-08-22 2011-04-07 Seiko Epson Corp Progressive-power lens
JP4559515B2 (en) * 2008-12-03 2010-10-06 クロスボウズ オプティカル リミテッド Progressive power lens

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA583087A (en) * 1955-06-04 1959-09-15 J. Davenport Lawrence Variable power lens
BE755907A (en) * 1969-09-11 1971-02-15 Lunetiers PROGRESSIVE FOCAL POWER LENSES
NL7107504A (en) * 1971-06-01 1972-12-05
US4056311A (en) * 1973-08-16 1977-11-01 American Optical Corporation Progressive power ophthalmic lens having a plurality of viewing zones with non-discontinuous variations therebetween
DE2814916C3 (en) * 1978-04-06 1982-01-07 Optische Werke G. Rodenstock, 8000 München Spectacle lens with a progression area located between the far part and the near part

Also Published As

Publication number Publication date
FR2499725B1 (en) 1985-07-05
JPS57139718A (en) 1982-08-28
MX153400A (en) 1986-10-07
IE50992B1 (en) 1986-09-03
BR8101927A (en) 1983-06-07
FR2499725A1 (en) 1982-08-13
GB2092772A (en) 1982-08-18
NL8101311A (en) 1982-09-01
NL189879B (en) 1993-03-16
IT8148143A0 (en) 1981-03-30
NL189879C (en) 1993-08-16
CH641572A5 (en) 1984-02-29
AU6855181A (en) 1982-08-26
AU532218B2 (en) 1983-09-22
SE451772B (en) 1987-10-26
JPH0147767B2 (en) 1989-10-16
GB2092772B (en) 1985-06-19
CA1153228A (en) 1983-09-06
SE8101437L (en) 1982-08-10

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Legal Events

Date Code Title Description
MK9A Patent expired