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CA2181937C - Procede de fabrication d'une lentille de contact - Google Patents

Procede de fabrication d'une lentille de contact Download PDF

Info

Publication number
CA2181937C
CA2181937C CA002181937A CA2181937A CA2181937C CA 2181937 C CA2181937 C CA 2181937C CA 002181937 A CA002181937 A CA 002181937A CA 2181937 A CA2181937 A CA 2181937A CA 2181937 C CA2181937 C CA 2181937C
Authority
CA
Canada
Prior art keywords
optical
preform
optical preform
contact lens
lens
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 - Fee Related
Application number
CA002181937A
Other languages
English (en)
Other versions
CA2181937A1 (fr
Inventor
Ronald D. Blum
Amitava Gupta
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.)
Johnson and Johnson Vision Care Inc
Original Assignee
Johnson and Johnson Vision Care 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
Priority claimed from US08/216,381 external-priority patent/US5598234A/en
Priority claimed from US08/225,386 external-priority patent/US5517259A/en
Priority claimed from US08/247,201 external-priority patent/US5528321A/en
Application filed by Johnson and Johnson Vision Care Inc filed Critical Johnson and Johnson Vision Care Inc
Publication of CA2181937A1 publication Critical patent/CA2181937A1/fr
Application granted granted Critical
Publication of CA2181937C publication Critical patent/CA2181937C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/0048—Moulds for lenses
    • B29D11/00519—Reusable moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00038—Production of contact 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
    • 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
    • G02C7/048—Means for stabilising the orientation of lenses in the eye
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2011/00—Optical elements, e.g. lenses, prisms
    • B29L2011/0016—Lenses
    • B29L2011/0025—Toric lenses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2011/00—Optical elements, e.g. lenses, prisms
    • B29L2011/0016—Lenses
    • B29L2011/0033—Multifocal lenses

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Eyeglasses (AREA)

Abstract

Procédé de fabrication d'une lentille de contact consistant à sélectionner une préforme optique et son emplacement de pose sur l'oeil du patient, sur lequel on a, au préalable, déterminé l'emplacement d'un élément optique. Un emplacement de référence est déterminé sur l'oeil du patient, qui coïncide avec l'élément optique lorsque la préforme est en place. Pour terminer, on apporte à la préforme une modification en un point basé sur la position de référence de la préforme.
CA002181937A 1994-03-23 1995-03-23 Procede de fabrication d'une lentille de contact Expired - Fee Related CA2181937C (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US08/216,381 US5598234A (en) 1992-11-23 1994-03-23 Method of manufacturing toric single vision, spherical or aspheric bifocal, multifocal or progressive contact lenses
US08/216,381 1994-03-23
US08/225,386 US5517259A (en) 1992-11-23 1994-04-08 Method of manufacturing toric single vision, spherical or aspheric bifocal, multifocal or progressive contact lenses
US08/225,386 1994-04-08
US08/247,201 1994-05-20
US08/247,201 US5528321A (en) 1992-11-23 1994-05-20 Method of manufacturing contact lenses
PCT/US1995/003740 WO1995025981A1 (fr) 1994-03-23 1995-03-23 Procede de fabrication d'une lentille de contact

Publications (2)

Publication Number Publication Date
CA2181937A1 CA2181937A1 (fr) 1995-09-28
CA2181937C true CA2181937C (fr) 2006-09-12

Family

ID=36999241

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002181937A Expired - Fee Related CA2181937C (fr) 1994-03-23 1995-03-23 Procede de fabrication d'une lentille de contact

Country Status (1)

Country Link
CA (1) CA2181937C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014161639A1 (fr) * 2013-04-02 2014-10-09 Rodenstock Gmbh Réalisation de verres de lunettes microstructurés dans la fabrication de verres correcteurs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014161639A1 (fr) * 2013-04-02 2014-10-09 Rodenstock Gmbh Réalisation de verres de lunettes microstructurés dans la fabrication de verres correcteurs

Also Published As

Publication number Publication date
CA2181937A1 (fr) 1995-09-28

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed