FR2346296B1 - - Google Patents

Info

Publication number
FR2346296B1
FR2346296B1 FR7609315A FR7609315A FR2346296B1 FR 2346296 B1 FR2346296 B1 FR 2346296B1 FR 7609315 A FR7609315 A FR 7609315A FR 7609315 A FR7609315 A FR 7609315A FR 2346296 B1 FR2346296 B1 FR 2346296B1
Authority
FR
France
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
FR7609315A
Other languages
French (fr)
Other versions
FR2346296A1 (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.)
Corning Glass Works
Original Assignee
Corning Glass Works
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 Corning Glass Works filed Critical Corning Glass Works
Priority to FR7609315A priority Critical patent/FR2346296A1/fr
Publication of FR2346296A1 publication Critical patent/FR2346296A1/fr
Application granted granted Critical
Publication of FR2346296B1 publication Critical patent/FR2346296B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C4/00—Compositions for glass with special properties
    • C03C4/04—Compositions for glass with special properties for photosensitive glass
    • C03C4/06—Compositions for glass with special properties for photosensitive glass for phototropic or photochromic glass
    • 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)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Materials Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Glass Compositions (AREA)
FR7609315A 1976-03-31 1976-03-31 Procede pour la fabrication de lentilles ophtalmiques photochromiques multifocales Granted FR2346296A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7609315A FR2346296A1 (fr) 1976-03-31 1976-03-31 Procede pour la fabrication de lentilles ophtalmiques photochromiques multifocales

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7609315A FR2346296A1 (fr) 1976-03-31 1976-03-31 Procede pour la fabrication de lentilles ophtalmiques photochromiques multifocales

Publications (2)

Publication Number Publication Date
FR2346296A1 FR2346296A1 (fr) 1977-10-28
FR2346296B1 true FR2346296B1 (fi) 1982-12-17

Family

ID=9171200

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7609315A Granted FR2346296A1 (fr) 1976-03-31 1976-03-31 Procede pour la fabrication de lentilles ophtalmiques photochromiques multifocales

Country Status (1)

Country Link
FR (1) FR2346296A1 (fi)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4160655A (en) * 1977-12-19 1979-07-10 Corning Glass Works Process for making gradient photochromic glass articles

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1370368A (fr) * 1963-09-30 1964-08-21 Corning Glass Works Nouveau verre et son procédé de fabrication
DE2221488B2 (de) * 1972-05-02 1975-06-19 Fa. Carl Zeiss, 7920 Heidenheim Verfahren zur Herstellung von phototropen Mehrstärkenbrillengläsern
AT338451B (de) * 1972-05-15 1977-08-25 Jenaer Glaswerk Schott & Gen Phototropes glas, geeignet als nahteilmaterial zur verschmelzung mit phototropen fernteilglasern fur mehrfokalbrillenglaser
US3801336A (en) * 1973-02-20 1974-04-02 American Optical Corp Lead borosilicate optical glass adaptable to fusion with photochromic glass to produce multifocal lens
DE2341929C3 (de) * 1973-08-20 1978-07-20 Jenaer Glaswerk Schott & Gen., 6500 Mainz Phototropes, chemisch härtbares Fernteil-Glas auf Silicoborat-Basis, geeignet zur Verschmelzung mit phototropen Nahteilgläsern für Bifokalbrillengläser

Also Published As

Publication number Publication date
FR2346296A1 (fr) 1977-10-28

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Legal Events

Date Code Title Description
ST Notification of lapse