IL88350A - Multifocal optical device - Google Patents

Multifocal optical device

Info

Publication number
IL88350A
IL88350A IL88350A IL8835088A IL88350A IL 88350 A IL88350 A IL 88350A IL 88350 A IL88350 A IL 88350A IL 8835088 A IL8835088 A IL 8835088A IL 88350 A IL88350 A IL 88350A
Authority
IL
Israel
Prior art keywords
facet
optical device
smooth curve
multifocal optical
outer corner
Prior art date
Application number
IL88350A
Other languages
English (en)
Other versions
IL88350A0 (en
Original Assignee
Cohen Allen L
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 Cohen Allen L filed Critical Cohen Allen L
Publication of IL88350A0 publication Critical patent/IL88350A0/xx
Publication of IL88350A publication Critical patent/IL88350A/xx

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)
IL88350A 1988-07-20 1988-11-10 Multifocal optical device IL88350A (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
IL88350A0 IL88350A0 (en) 1989-06-30
IL88350A true IL88350A (en) 1992-08-18

Family

ID=22830316

Family Applications (1)

Application Number Title Priority Date Filing Date
IL88350A IL88350A (en) 1988-07-20 1988-11-10 Multifocal optical device

Country Status (14)

Country Link
US (1) US4995715A (de)
EP (2) EP0681198A1 (de)
JP (1) JP2849097B2 (de)
KR (1) KR0141607B1 (de)
CN (1) CN1020134C (de)
AT (1) ATE133796T1 (de)
AU (1) AU622420B2 (de)
CA (1) CA1316727C (de)
DE (1) DE3854966T2 (de)
ES (1) ES2081811T3 (de)
GR (1) GR3019724T3 (de)
IE (2) IE960172L (de)
IL (1) IL88350A (de)
ZA (1) ZA888416B (de)

Families Citing this family (156)

* Cited by examiner, † Cited by third party
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Also Published As

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IE883377L (en) 1990-01-20
JPH0255314A (ja) 1990-02-23
EP0681198A1 (de) 1995-11-08
KR0141607B1 (ko) 1998-07-01
ATE133796T1 (de) 1996-02-15
IE73484B1 (en) 1997-06-04
IL88350A0 (en) 1989-06-30
JP2849097B2 (ja) 1999-01-20
ES2081811T3 (es) 1996-03-16
AU2500488A (en) 1990-01-25
AU622420B2 (en) 1992-04-09
CA1316727C (en) 1993-04-27
ZA888416B (en) 1989-07-26
US4995715A (en) 1991-02-26
DE3854966T2 (de) 1996-05-30
DE3854966D1 (de) 1996-03-14
KR900002101A (ko) 1990-02-28
IE960172L (en) 1990-01-20
CN1020134C (zh) 1993-03-17
GR3019724T3 (en) 1996-07-31
EP0351471B1 (de) 1996-01-31
EP0351471A3 (en) 1990-07-25
CN1039487A (zh) 1990-02-07
EP0351471A2 (de) 1990-01-24

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