FR2504515B1 - - Google Patents

Info

Publication number
FR2504515B1
FR2504515B1 FR8108296A FR8108296A FR2504515B1 FR 2504515 B1 FR2504515 B1 FR 2504515B1 FR 8108296 A FR8108296 A FR 8108296A FR 8108296 A FR8108296 A FR 8108296A FR 2504515 B1 FR2504515 B1 FR 2504515B1
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
FR8108296A
Other languages
French (fr)
Other versions
FR2504515A1 (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.)
EssilorLuxottica SA
Original Assignee
Essilor International Compagnie Generale dOptique 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 Essilor International Compagnie Generale dOptique SA filed Critical Essilor International Compagnie Generale dOptique SA
Priority to FR8108296A priority Critical patent/FR2504515A1/fr
Publication of FR2504515A1 publication Critical patent/FR2504515A1/fr
Application granted granted Critical
Publication of FR2504515B1 publication Critical patent/FR2504515B1/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
    • C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Surface Treatment Of Glass (AREA)
  • Glass Compositions (AREA)
FR8108296A 1981-04-27 1981-04-27 Procede pour l'obtention d'un verre mineral a gradient d'indice, et article, en particulier lentille ophtalmique, en un tel verre Granted FR2504515A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8108296A FR2504515A1 (fr) 1981-04-27 1981-04-27 Procede pour l'obtention d'un verre mineral a gradient d'indice, et article, en particulier lentille ophtalmique, en un tel verre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8108296A FR2504515A1 (fr) 1981-04-27 1981-04-27 Procede pour l'obtention d'un verre mineral a gradient d'indice, et article, en particulier lentille ophtalmique, en un tel verre

Publications (2)

Publication Number Publication Date
FR2504515A1 FR2504515A1 (fr) 1982-10-29
FR2504515B1 true FR2504515B1 (enrdf_load_stackoverflow) 1984-08-24

Family

ID=9257790

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8108296A Granted FR2504515A1 (fr) 1981-04-27 1981-04-27 Procede pour l'obtention d'un verre mineral a gradient d'indice, et article, en particulier lentille ophtalmique, en un tel verre

Country Status (1)

Country Link
FR (1) FR2504515A1 (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61222943A (ja) * 1985-03-29 1986-10-03 Hoya Corp 屈折率分布型レンズの製造法
DE69628876T2 (de) * 1995-04-19 2004-04-22 Corning Inc. Vorrichtung und Verfahren zum Formen von geschmolzenem glasartigen Material in Stäben
ES2159656T3 (es) * 1995-04-19 2001-10-16 Corning Inc Procedimiento y dispositivo para fabricar una barra de un material que tiene un gradiente de variacion de composicion en seccion transversal.
EP3702336B1 (en) * 2017-10-27 2024-05-01 Nikon Corporation Optical glass, and optical element, cemented lens, optical system, interchangeable lens for camera and optical device using same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4023951A (en) * 1974-09-25 1977-05-17 Imperial Chemical Industries Limited Treatment of glass
FR2305406A1 (fr) * 1975-03-22 1976-10-22 Hoya Glass Works Ltd Filtres pour laser presentant un gradient de transmittance a leur peripherie, a base de verre, et leur procede de preparation

Also Published As

Publication number Publication date
FR2504515A1 (fr) 1982-10-29

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Legal Events

Date Code Title Description
ST Notification of lapse