FR1217892A - Bifocal lens enhancements - Google Patents

Bifocal lens enhancements

Info

Publication number
FR1217892A
FR1217892A FR781481A FR781481A FR1217892A FR 1217892 A FR1217892 A FR 1217892A FR 781481 A FR781481 A FR 781481A FR 781481 A FR781481 A FR 781481A FR 1217892 A FR1217892 A FR 1217892A
Authority
FR
France
Prior art keywords
enhancements
bifocal lens
bifocal
lens
lens enhancements
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
Application number
FR781481A
Other languages
French (fr)
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.)
Lentilles Ophtalmiques Speciales SA
Original Assignee
Lentilles Ophtalmiques Speciales SA
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 Lentilles Ophtalmiques Speciales SA filed Critical Lentilles Ophtalmiques Speciales SA
Priority to FR781481A priority Critical patent/FR1217892A/en
Application granted granted Critical
Publication of FR1217892A publication Critical patent/FR1217892A/en
Expired 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
    • G02C7/06—Lenses; Lens systems ; Methods of designing lenses bifocal; multifocal ; progressive

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR781481A 1958-12-12 1958-12-12 Bifocal lens enhancements Expired FR1217892A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR781481A FR1217892A (en) 1958-12-12 1958-12-12 Bifocal lens enhancements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR781481A FR1217892A (en) 1958-12-12 1958-12-12 Bifocal lens enhancements

Publications (1)

Publication Number Publication Date
FR1217892A true FR1217892A (en) 1960-05-06

Family

ID=8709178

Family Applications (1)

Application Number Title Priority Date Filing Date
FR781481A Expired FR1217892A (en) 1958-12-12 1958-12-12 Bifocal lens enhancements

Country Status (1)

Country Link
FR (1) FR1217892A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3405995A (en) * 1963-02-14 1968-10-15 L O R Lentilles Ophtalmiques R Preformed blank for multifocal lens
FR2486666A1 (en) * 1980-07-09 1982-01-15 Essilor Int OPHTHALMIC LENS WITH MULTIPLE FIREPLACES
FR2573876A1 (en) * 1984-11-26 1986-05-30 Vinzia Francis MULTIFOCAL LENS, PROCESS FOR PREPARING SAME, AND USE AS A CONTACT LENS OR AN INTRAOCULAR IMPLANT TO REPLACE THE CRYSTALLINE

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3405995A (en) * 1963-02-14 1968-10-15 L O R Lentilles Ophtalmiques R Preformed blank for multifocal lens
FR2486666A1 (en) * 1980-07-09 1982-01-15 Essilor Int OPHTHALMIC LENS WITH MULTIPLE FIREPLACES
US4484804A (en) * 1980-07-09 1984-11-27 Essilor International Cie Generale D'optique Multifocal ophthalmic lenses
FR2573876A1 (en) * 1984-11-26 1986-05-30 Vinzia Francis MULTIFOCAL LENS, PROCESS FOR PREPARING SAME, AND USE AS A CONTACT LENS OR AN INTRAOCULAR IMPLANT TO REPLACE THE CRYSTALLINE
EP0184490A2 (en) * 1984-11-26 1986-06-11 Francis Daniel Vinzia Aspherical multifocal contact lens
EP0184490A3 (en) * 1984-11-26 1988-08-10 Francis Daniel Vinzia Aspherical multifocal contact lens
US4861152A (en) * 1984-11-26 1989-08-29 Vinzia Francis D Contact lens having at least one aspherical, progressive multifocal face, process for the preparation thereof and use of this contact lens as an intra-ocular implant to be substituted for the eye crystalline lens

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