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ES2081811T3 - Elemento optico difractivo multifocal. - Google Patents

Elemento optico difractivo multifocal.

Info

Publication number
ES2081811T3
ES2081811T3 ES88310562T ES88310562T ES2081811T3 ES 2081811 T3 ES2081811 T3 ES 2081811T3 ES 88310562 T ES88310562 T ES 88310562T ES 88310562 T ES88310562 T ES 88310562T ES 2081811 T3 ES2081811 T3 ES 2081811T3
Authority
ES
Spain
Prior art keywords
multifocal
difractive
optical element
facet
smooth curve
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 - Lifetime
Application number
ES88310562T
Other languages
English (en)
Inventor
Allen L Dr Cohen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of ES2081811T3 publication Critical patent/ES2081811T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G02C7/04—Contact lenses for the eyes
    • 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
    • G02B5/189—Structurally combined with optical elements not having diffractive power
    • G02B5/1895—Structurally combined with optical elements not having diffractive power such optical elements having dioptric power
    • 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
    • G02C7/024—Methods of designing ophthalmic lenses
    • G02C7/028—Special mathematical design techniques
    • 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
    • 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
    • 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
    • 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)
  • Mathematical Physics (AREA)
  • Prostheses (AREA)
  • Eyeglasses (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Materials For Medical Uses (AREA)
  • Polarising Elements (AREA)
  • Optical Integrated Circuits (AREA)
  • Laser Surgery Devices (AREA)

Abstract

UN DISPOSITIVO OPTICO MULTIFOCAL DIFRACTIVO COMPRENDIENDO DE UNA LAMINA DE ZONAS DE FASE CONTENIENDO ZONAS CONCENTRICAS ANULARES EN LA CUAL, LAS ZONAS ESTAN ESPACIADAS SUBSTANCIALMENTE PROPORCIONALES A (RAIZ CUADRADA) N, LAS ZONAS POSEEN FACETAS ESCALONADAS QUE INTRODUCEN UNA DISCONTINUIDAD EN LA LONGITUD DE LA TRAYECTORIA OPTICA DE MENOS DE LAMBDA/2.
ES88310562T 1988-07-20 1988-11-10 Elemento optico difractivo multifocal. Expired - Lifetime ES2081811T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22200088A 1988-07-20 1988-07-20

Publications (1)

Publication Number Publication Date
ES2081811T3 true ES2081811T3 (es) 1996-03-16

Family

ID=22830316

Family Applications (1)

Application Number Title Priority Date Filing Date
ES88310562T Expired - Lifetime ES2081811T3 (es) 1988-07-20 1988-11-10 Elemento optico difractivo multifocal.

Country Status (14)

Country Link
US (1) US4995715A (es)
EP (2) EP0681198A1 (es)
JP (1) JP2849097B2 (es)
KR (1) KR0141607B1 (es)
CN (1) CN1020134C (es)
AT (1) ATE133796T1 (es)
AU (1) AU622420B2 (es)
CA (1) CA1316727C (es)
DE (1) DE3854966T2 (es)
ES (1) ES2081811T3 (es)
GR (1) GR3019724T3 (es)
IE (2) IE73484B1 (es)
IL (1) IL88350A (es)
ZA (1) ZA888416B (es)

Families Citing this family (154)

* Cited by examiner, † Cited by third party
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KR0141607B1 (ko) 1998-07-01
IE73484B1 (en) 1997-06-04
JPH0255314A (ja) 1990-02-23
KR900002101A (ko) 1990-02-28
ZA888416B (en) 1989-07-26
EP0351471A3 (en) 1990-07-25
AU2500488A (en) 1990-01-25
GR3019724T3 (en) 1996-07-31
CA1316727C (en) 1993-04-27
JP2849097B2 (ja) 1999-01-20
ATE133796T1 (de) 1996-02-15
EP0351471A2 (en) 1990-01-24
AU622420B2 (en) 1992-04-09
CN1020134C (zh) 1993-03-17
DE3854966T2 (de) 1996-05-30
IL88350A (en) 1992-08-18
CN1039487A (zh) 1990-02-07
EP0351471B1 (en) 1996-01-31
IL88350A0 (en) 1989-06-30
IE960172L (en) 1990-01-20
IE883377L (en) 1990-01-20
US4995715A (en) 1991-02-26
DE3854966D1 (de) 1996-03-14
EP0681198A1 (en) 1995-11-08

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