BR112023000594A2 - Lente multifocal e método para produzir uma lente multifocal - Google Patents

Lente multifocal e método para produzir uma lente multifocal

Info

Publication number
BR112023000594A2
BR112023000594A2 BR112023000594A BR112023000594A BR112023000594A2 BR 112023000594 A2 BR112023000594 A2 BR 112023000594A2 BR 112023000594 A BR112023000594 A BR 112023000594A BR 112023000594 A BR112023000594 A BR 112023000594A BR 112023000594 A2 BR112023000594 A2 BR 112023000594A2
Authority
BR
Brazil
Prior art keywords
multifocal lens
diffractive zone
lens
producing
indicates
Prior art date
Application number
BR112023000594A
Other languages
English (en)
Inventor
Wang Jun
Simonov Alexey
Original Assignee
Hoya Corp
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 Hoya Corp filed Critical Hoya Corp
Publication of BR112023000594A2 publication Critical patent/BR112023000594A2/pt

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/16—Intraocular lenses
    • A61F2/1613—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
    • A61F2/1616—Pseudo-accommodative, e.g. multifocal or enabling monovision
    • A61F2/1618—Multifocal lenses
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/16—Intraocular lenses
    • A61F2/1613—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
    • A61F2/1637—Correcting aberrations caused by inhomogeneities; correcting intrinsic aberrations, e.g. of the cornea, of the surface of the natural lens, aspheric, cylindrical, toric lenses
    • A61F2/164—Aspheric lenses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/16—Intraocular lenses
    • A61F2/1613—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
    • A61F2/1654—Diffractive lenses
    • A61F2/1656—Fresnel lenses, prisms or plates
    • 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
    • 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

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Vascular Medicine (AREA)
  • Veterinary Medicine (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)
  • Lenses (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Prostheses (AREA)
  • Materials For Medical Uses (AREA)

Abstract

LENTE MULTIFOCAL E MÉTODO PARA PRODUZIR UMA LENTE MULTIFOCAL. A invenção refere-se a uma lente multifocal (1) tendo várias zonas de difração concêntricas (7, 8, 9, 10) em uma superfície da lente (2), sendo que cada zona difrativa (7, 8, 9, 10) é definida uma estrutura de fase de difração, que pode ser expressa pela seguinte função por partes, que compreende três durações de fase, ou por uma versão suavizada da seguinte função por partes: fi(xi)=2p×{¦(p_1, 0=<w_1@p_2+q_2, w_1=<w_2@p_3 +q_3, w_2=< 1)¦ (1) sendo que indica uma posição dentro da respectiva zona difrativa em uma direção radial, fi(xi) indica uma mudança de fase experimentada pela luz passando pela posição indicada por xi, w1 e w2 definem um particionamento espacial da respectiva zona difrativa na direção radial, p1, p2 e p3 indicam gradientes e q2 e q3 são constantes. A posição xi depende quadraticamente de uma distância radial ao centro da superfície da lente e é normalizada em relação à largura radial da respectiva zona difrativa e sendo os gradientes p1, p2 e p3 são negativos.
BR112023000594A 2020-07-15 2021-07-15 Lente multifocal e método para produzir uma lente multifocal BR112023000594A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP20186025.1A EP3939543A1 (en) 2020-07-15 2020-07-15 Multifocal lens
PCT/JP2021/027614 WO2022014723A1 (en) 2020-07-15 2021-07-15 Multifocal lens

Publications (1)

Publication Number Publication Date
BR112023000594A2 true BR112023000594A2 (pt) 2023-03-28

Family

ID=71620340

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112023000594A BR112023000594A2 (pt) 2020-07-15 2021-07-15 Lente multifocal e método para produzir uma lente multifocal

Country Status (8)

Country Link
US (1) US20230301774A1 (pt)
EP (2) EP3939543A1 (pt)
JP (1) JP2023534079A (pt)
KR (1) KR20230042299A (pt)
CN (1) CN116600742A (pt)
AU (1) AU2021307262A1 (pt)
BR (1) BR112023000594A2 (pt)
WO (1) WO2022014723A1 (pt)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5203160B2 (ja) 2008-12-05 2013-06-05 Ｈｏｙａ株式会社 回折型多焦点レンズ
JP5342244B2 (ja) * 2009-01-06 2013-11-13 株式会社メニコン 無水晶体眼内レンズの製造方法
BRPI1008369B1 (pt) * 2009-02-12 2019-10-29 Univ Arizona lente multifocal de difração e método de produzir a mesma
BE1019161A5 (fr) * 2010-01-26 2012-04-03 Physiol Lentille intraoculaire.
EP3130314A1 (en) * 2015-08-12 2017-02-15 PhysIOL SA Trifocal intraocular lens with extended range of vision and correction of longitudinal chromatic aberration
US10426599B2 (en) * 2016-11-29 2019-10-01 Novartis Ag Multifocal lens having reduced chromatic aberrations
US11344404B2 (en) * 2018-02-22 2022-05-31 Bausch & Lomb Incorporated Distance dominant intraocular lens

Also Published As

Publication number Publication date
JP2023534079A (ja) 2023-08-07
AU2021307262A1 (en) 2023-02-09
US20230301774A1 (en) 2023-09-28
WO2022014723A1 (en) 2022-01-20
CN116600742A (zh) 2023-08-15
KR20230042299A (ko) 2023-03-28
EP4181827A1 (en) 2023-05-24
EP3939543A1 (en) 2022-01-19

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