ATE133794T1 - Multifokallinse mit kleiner apertur - Google Patents

Multifokallinse mit kleiner apertur

Info

Publication number
ATE133794T1
ATE133794T1 AT90107373T AT90107373T ATE133794T1 AT E133794 T1 ATE133794 T1 AT E133794T1 AT 90107373 T AT90107373 T AT 90107373T AT 90107373 T AT90107373 T AT 90107373T AT E133794 T1 ATE133794 T1 AT E133794T1
Authority
AT
Austria
Prior art keywords
multifocall
lens
small aperture
intraocular
relies
Prior art date
Application number
AT90107373T
Other languages
English (en)
Inventor
Allen L Dr Cohen
Original Assignee
Allen L Dr Cohen
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 Allen L Dr Cohen filed Critical Allen L Dr Cohen
Application granted granted Critical
Publication of ATE133794T1 publication Critical patent/ATE133794T1/de

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • 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
    • G02C7/04—Contact lenses for the eyes
    • G02C7/041—Contact lenses for the eyes bifocal; multifocal
    • G02C7/044—Annular configuration, e.g. pupil tuned
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1876—Diffractive Fresnel lenses; Zone plates; Kinoforms
    • 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
    • G02C7/04—Contact lenses for the eyes
    • G02C7/041—Contact lenses for the eyes bifocal; multifocal
    • G02C7/042—Simultaneous type
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C2202/00—Generic optical aspects applicable to one or more of the subgroups of G02C7/00
    • G02C2202/20—Diffractive and Fresnel lenses or lens portions

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Health & Medical Sciences (AREA)
  • Prostheses (AREA)
  • Eyeglasses (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Materials For Medical Uses (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
AT90107373T 1989-04-19 1990-04-18 Multifokallinse mit kleiner apertur ATE133794T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/340,496 US5121980A (en) 1989-04-19 1989-04-19 Small aperture multifocal

Publications (1)

Publication Number Publication Date
ATE133794T1 true ATE133794T1 (de) 1996-02-15

Family

ID=23333606

Family Applications (1)

Application Number Title Priority Date Filing Date
AT90107373T ATE133794T1 (de) 1989-04-19 1990-04-18 Multifokallinse mit kleiner apertur

Country Status (17)

Country Link
US (1) US5121980A (de)
EP (1) EP0393639B1 (de)
JP (1) JP2768801B2 (de)
KR (1) KR100215166B1 (de)
CN (1) CN1023259C (de)
AT (1) ATE133794T1 (de)
AU (1) AU638451B2 (de)
CA (1) CA2014754C (de)
DE (1) DE69025085T2 (de)
DK (1) DK0393639T3 (de)
ES (1) ES2081869T3 (de)
GR (1) GR3019599T3 (de)
IE (1) IE74683B1 (de)
IL (1) IL94136A (de)
NO (1) NO300047B1 (de)
TW (1) TW228574B (de)
ZA (1) ZA902918B (de)

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* Cited by examiner, † Cited by third party
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Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
US4210391A (en) 1977-09-14 1980-07-01 Cohen Allen L Multifocal zone plate
US4338005A (en) 1978-12-18 1982-07-06 Cohen Allen L Multifocal phase place
US4340283A (en) * 1978-12-18 1982-07-20 Cohen Allen L Phase shift multifocal zone plate
DE3381691D1 (de) * 1982-10-13 1990-08-02 Ng Trustees & Nominees Ltd Bifokale kontaktlinsen.
US4881805A (en) * 1987-11-12 1989-11-21 Cohen Allen L Progressive intensity phase bifocal
US4881804A (en) * 1987-11-12 1989-11-21 Cohen Allen L Multifocal phase plate with a pure refractive portion
CA1316728C (en) * 1988-04-01 1993-04-27 Michael J. Simpson Multi-focal diffractive ophthalmic lenses
FR2631713B1 (fr) * 1988-05-19 1990-08-31 Essilor Int Lentille diffractive a profil mixte

Also Published As

Publication number Publication date
NO300047B1 (no) 1997-03-24
TW228574B (de) 1994-08-21
EP0393639B1 (de) 1996-01-31
IE901372A1 (en) 1991-02-13
CN1023259C (zh) 1993-12-22
GR3019599T3 (en) 1996-07-31
ZA902918B (en) 1991-05-29
ES2081869T3 (es) 1996-03-16
NO901744D0 (no) 1990-04-19
CA2014754A1 (en) 1990-10-19
EP0393639A2 (de) 1990-10-24
NO901744L (no) 1990-10-22
KR900016784A (ko) 1990-11-14
DK0393639T3 (da) 1996-02-19
CN1047925A (zh) 1990-12-19
DE69025085T2 (de) 1996-05-30
DE69025085D1 (de) 1996-03-14
CA2014754C (en) 1998-12-29
AU638451B2 (en) 1993-07-01
JPH0362001A (ja) 1991-03-18
KR100215166B1 (ko) 1999-08-16
JP2768801B2 (ja) 1998-06-25
IL94136A0 (en) 1991-01-31
AU5367590A (en) 1990-10-25
EP0393639A3 (de) 1991-10-23
IE74683B1 (en) 1997-07-30
IL94136A (en) 1994-10-07
IE901372L (en) 1990-10-19
US5121980A (en) 1992-06-16

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