EP0931029A1 - Procede de fabrication de verre polarisant - Google Patents

Procede de fabrication de verre polarisant

Info

Publication number
EP0931029A1
EP0931029A1 EP97941471A EP97941471A EP0931029A1 EP 0931029 A1 EP0931029 A1 EP 0931029A1 EP 97941471 A EP97941471 A EP 97941471A EP 97941471 A EP97941471 A EP 97941471A EP 0931029 A1 EP0931029 A1 EP 0931029A1
Authority
EP
European Patent Office
Prior art keywords
glass
copper
article
temperature
silver
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.)
Withdrawn
Application number
EP97941471A
Other languages
German (de)
English (en)
Other versions
EP0931029A4 (fr
Inventor
David G. Grossman
Lisa R. Vandegrift
George N. Whitbred, Iii
Joseph M. Williams
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 Inc
Original Assignee
Corning 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
Application filed by Corning Inc filed Critical Corning Inc
Publication of EP0931029A1 publication Critical patent/EP0931029A1/fr
Publication of EP0931029A4 publication Critical patent/EP0931029A4/fr
Withdrawn legal-status Critical Current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
    • C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching
    • 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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/0006—Re-forming shaped glass by drawing
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B32/00—Thermal after-treatment of glass products not provided for in groups C03B19/00, C03B25/00 - C03B31/00 or C03B37/00, e.g. crystallisation, eliminating gas inclusions or other impurities; Hot-pressing vitrified, non-porous, shaped glass products
    • C03B32/02—Thermal crystallisation, e.g. for crystallising glass bodies into glass-ceramic articles
    • 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
    • C03C14/00—Glass compositions containing a non-glass component, e.g. compositions containing fibres, filaments, whiskers, platelets, or the like, dispersed in a glass matrix
    • C03C14/006—Glass compositions containing a non-glass component, e.g. compositions containing fibres, filaments, whiskers, platelets, or the like, dispersed in a glass matrix the non-glass component being in the form of microcrystallites, e.g. of optically or electrically active material
    • 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
    • C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
    • C03C23/007—Other surface treatment of glass not in the form of fibres or filaments by thermal treatment

Abstract

L'invention a trait à un procédé de fabrication de verre polarisant à large bande et à polarité élevée du contraste dans la zone de l'infrarouge du spectre de rayonnement, et à séparation de phase ou bien doté de propriétés photochromiques reposant sur la présence de cristaux d'halogénures d'argent, de cuivre ou de cuivre au cadmium ou sur celle de leurs combinaisons, ces halogénures étant précipités dans ledit verre, et dont les dimensions sont comprises entre 200 et 5000 angströms. Ce verre est doté d'une couche de surface contenant des particules métalliques allongées d'argent, de cuivre ou de cuivre au cadmium ou constituée par leur mélange. Le procédé consiste à former à chaud de gros cristaux d'halogénure et à les faire précipiter en soumettant l'article en verre à un cycle temps-température au cours duquel la température est au moins de 75 °C au-dessus du point de ramollissement du verre. La figure est une représentation graphique de niveaux de contrainte exprimés en psi versus des longueurs d'ondes centrales (CWL) dans laquelle la longueur d'onde centrale est définie comme étant le centre d'une plage donnée de capacités polarisantes. Plus particulièrement, les niveaux de contrainte requis pour l'obtention d'une longueur d'onde centrale sont rapportés à deux cycles de traitement thermique. La ligne supérieure A représente des données en rapport avec le traitement thermique classique de verres polarisants, 710 °C durant 4 heures et la ligne B représente des données en rapport avec un nouveau traitement thermique, à température élevée, soit à 750 °C durant 8 heures.
EP97941471A 1996-09-30 1997-09-08 Procede de fabrication de verre polarisant Withdrawn EP0931029A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US2725696P 1996-09-30 1996-09-30
US27256P 1996-09-30
PCT/US1997/015895 WO1998014409A1 (fr) 1996-09-30 1997-09-08 Procede de fabrication de verre polarisant

Publications (2)

Publication Number Publication Date
EP0931029A1 true EP0931029A1 (fr) 1999-07-28
EP0931029A4 EP0931029A4 (fr) 2000-05-10

Family

ID=21836624

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97941471A Withdrawn EP0931029A4 (fr) 1996-09-30 1997-09-08 Procede de fabrication de verre polarisant

Country Status (4)

Country Link
EP (1) EP0931029A4 (fr)
JP (1) JP2001501163A (fr)
KR (1) KR100490316B1 (fr)
WO (1) WO1998014409A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1017642A4 (fr) * 1997-04-24 2002-06-26 Corning Inc Procede de fabrication d'un verre comportant des regions polarisees et des regions non polarisees
DE19829970C2 (de) 1998-07-04 2000-07-13 F O B Gmbh Verfahren zur Herstellung von UV-Polarisatoren
EP0999459A3 (fr) * 1998-11-03 2001-12-05 Corning Incorporated Polariseur pour la lumière visible et ultraviolet puis son procédé de fabrication
US6563639B1 (en) * 2002-01-24 2003-05-13 Corning Incorporated Polarizing glasses

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4908054A (en) * 1989-02-21 1990-03-13 Corning Incorporated Method for making infrared polarizing glasses
US5430573A (en) * 1993-12-15 1995-07-04 Corning Incorporated UV-absorbing, polarizing glass article
EP0719741A1 (fr) * 1994-12-27 1996-07-03 Hoya Corporation Procédé de production de verre polarisant
EP0719742A1 (fr) * 1994-12-27 1996-07-03 Hoya Corporation Verre polarisant et procédé pour sa production

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3653863A (en) * 1968-07-03 1972-04-04 Corning Glass Works Method of forming photochromic polarizing glasses
US4190451A (en) * 1978-03-17 1980-02-26 Corning Glass Works Photochromic glass
US4405672A (en) * 1982-03-15 1983-09-20 Corning Glass Works Composite photochromic glass article and method of making

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4908054A (en) * 1989-02-21 1990-03-13 Corning Incorporated Method for making infrared polarizing glasses
US5430573A (en) * 1993-12-15 1995-07-04 Corning Incorporated UV-absorbing, polarizing glass article
EP0719741A1 (fr) * 1994-12-27 1996-07-03 Hoya Corporation Procédé de production de verre polarisant
EP0719742A1 (fr) * 1994-12-27 1996-07-03 Hoya Corporation Verre polarisant et procédé pour sa production

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9814409A1 *

Also Published As

Publication number Publication date
WO1998014409A1 (fr) 1998-04-09
JP2001501163A (ja) 2001-01-30
KR20000048737A (ko) 2000-07-25
EP0931029A4 (fr) 2000-05-10
KR100490316B1 (ko) 2005-05-17

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