FR2504515A1 - Procede pour l'obtention d'un verre mineral a gradient d'indice, et article, en particulier lentille ophtalmique, en un tel verre - Google Patents

Procede pour l'obtention d'un verre mineral a gradient d'indice, et article, en particulier lentille ophtalmique, en un tel verre Download PDF

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Publication number
FR2504515A1
FR2504515A1 FR8108296A FR8108296A FR2504515A1 FR 2504515 A1 FR2504515 A1 FR 2504515A1 FR 8108296 A FR8108296 A FR 8108296A FR 8108296 A FR8108296 A FR 8108296A FR 2504515 A1 FR2504515 A1 FR 2504515A1
Authority
FR
France
Prior art keywords
glass
sodium
index gradient
substrate
sodium oxide
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.)
Granted
Application number
FR8108296A
Other languages
English (en)
French (fr)
Other versions
FR2504515B1 (enrdf_load_stackoverflow
Inventor
Germain Chartier
Jean-Louis Coutaz
Pierre Jaussaud
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

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Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C21/00Treatment 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 true FR2504515A1 (fr) 1982-10-29
FR2504515B1 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)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0250635A1 (en) * 1985-03-29 1988-01-07 Hoya Corporation Method of producing a gradient-index lens
US5683482A (en) * 1995-04-19 1997-11-04 Corning Incorporated Device and method for shaping rods, especially of glassy material
US6062047A (en) * 1995-04-19 2000-05-16 Corning Incorporated Device for manufacturing a rod of a material having a cross-sectional composition gradient
EP3702336A4 (en) * 2017-10-27 2021-08-18 Nikon Corporation OPTICAL GLASS, AND OPTICAL ELEMENT, CEMENT LENS, OPTICAL SYSTEM, INTERCHANGEABLE CAMERA LENS AND OPTICAL DEVICE USING LEDIT OPTICAL GLASS

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2542818A1 (de) * 1974-09-25 1976-04-15 Ici Ltd Verfahren zur behandlung von glas
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2542818A1 (de) * 1974-09-25 1976-04-15 Ici Ltd Verfahren zur behandlung von glas
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/79 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0250635A1 (en) * 1985-03-29 1988-01-07 Hoya Corporation Method of producing a gradient-index lens
US5683482A (en) * 1995-04-19 1997-11-04 Corning Incorporated Device and method for shaping rods, especially of glassy material
US6062047A (en) * 1995-04-19 2000-05-16 Corning Incorporated Device for manufacturing a rod of a material having a cross-sectional composition gradient
EP3702336A4 (en) * 2017-10-27 2021-08-18 Nikon Corporation OPTICAL GLASS, AND OPTICAL ELEMENT, CEMENT LENS, OPTICAL SYSTEM, INTERCHANGEABLE CAMERA LENS AND OPTICAL DEVICE USING LEDIT OPTICAL GLASS
US11724959B2 (en) 2017-10-27 2023-08-15 Nikon Corporation Optical glass, and optical element, cemented lens, optical system, interchangeable lens for camera and optical device using same
EP4365643A3 (en) * 2017-10-27 2024-05-22 Nikon Corporation Optical glass, and optical element, cemented lens, optical system, interchangeable lens for camera and optical device using same
US12234183B2 (en) 2017-10-27 2025-02-25 Nikon Corporation Optical glass, and optical element, cemented lens, optical system, interchangeable lens for camera and optical device using same

Also Published As

Publication number Publication date
FR2504515B1 (enrdf_load_stackoverflow) 1984-08-24

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