FR2450792A1 - Verres ophtalmiques a indice eleve - Google Patents

Verres ophtalmiques a indice eleve

Info

Publication number
FR2450792A1
FR2450792A1 FR8005184A FR8005184A FR2450792A1 FR 2450792 A1 FR2450792 A1 FR 2450792A1 FR 8005184 A FR8005184 A FR 8005184A FR 8005184 A FR8005184 A FR 8005184A FR 2450792 A1 FR2450792 A1 FR 2450792A1
Authority
FR
France
Prior art keywords
high index
ophthalmic lenses
weight
index ophthalmic
glass
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
FR8005184A
Other languages
English (en)
Other versions
FR2450792B1 (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
Publication of FR2450792A1 publication Critical patent/FR2450792A1/fr
Application granted granted Critical
Publication of FR2450792B1 publication Critical patent/FR2450792B1/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
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/102—Glass compositions containing silica with 40% to 90% silica, by weight containing lead
    • C03C3/108—Glass compositions containing silica with 40% to 90% silica, by weight containing lead containing boron
    • 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
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/062—Glass compositions containing silica with less than 40% silica by weight
    • C03C3/07—Glass compositions containing silica with less than 40% silica by weight containing lead
    • C03C3/072—Glass compositions containing silica with less than 40% silica by weight containing lead containing boron
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S501/00—Compositions: ceramic
    • Y10S501/90—Optical glass, e.g. silent on refractive index and/or ABBE number

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)
  • Glass Compositions (AREA)
  • Eyeglasses (AREA)

Abstract

L'INVENTION SE RAPPORTE A L'INDUSTRIE VERRIERE. ELLE CONCERNE UN VERRE OPHTALMIQUE POSSEDANT UN INDICE DE REFRACTION COMPRIS ENTRE ENVIRON 1,58 ET 1,71, UN POINT DE RAMOLLISSEMENT COMPRIS ENTRE 620 ET 645C, UN POINT DE TENSION COMPRIS ENTRE 445 ET 480C, UN COEFFICIENT DE DILATATION THERMIQUE 0 A 300C COMPRIS ENTRE 60 ET 66 10C, CARACTERISE EN CE QU'IL COMPREND, EN PROPORTIONS PONDERALES SUR LA BASE DES OXYDES, 0 A 2 DE LIO, 0 A 3 DE NAO, 1 A 4 DE LIONAO, 4 A 9 DE BAO, 25 A 50 DE PBO, 4 A 8 DE BO, 4 A 7 D'ALO, 30 A 50 DE SIO ET 0,5 A 3 DE TIO, LA SOMME DE CES CONSTITUANTS REPRESENTANT AU MOINS 95 DU POIDS DE LA COMPOSITION GLOBALE. UTILISATION COMME SEGMENTS SOUDABLES DANS LA FABRICATION DE LENTILLES MULTIFOCALES PHOTOCHROMIQUES.
FR8005184A 1979-03-09 1980-03-07 Verres ophtalmiques a indice eleve Granted FR2450792A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/019,247 US4211569A (en) 1979-03-09 1979-03-09 High index ophthalmic glasses

Publications (2)

Publication Number Publication Date
FR2450792A1 true FR2450792A1 (fr) 1980-10-03
FR2450792B1 FR2450792B1 (fr) 1984-03-23

Family

ID=21792206

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8005184A Granted FR2450792A1 (fr) 1979-03-09 1980-03-07 Verres ophtalmiques a indice eleve

Country Status (6)

Country Link
US (1) US4211569A (fr)
JP (1) JPS5919053B2 (fr)
DE (1) DE3008613A1 (fr)
ES (1) ES8103848A1 (fr)
FR (1) FR2450792A1 (fr)
GB (1) GB2045230B (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2508433A1 (fr) * 1981-06-24 1982-12-31 Corning Glass Works Verres ophtalmiques a indice de refraction eleve
NL8304361A (nl) * 1983-12-20 1985-07-16 Philips Nv Glassamenstelling geschikt voor gebruik in een fluorescentielamp, buis en lampvat vervaardigd uit deze glassamenstelling en fluorescentielamp voorzien van een lampvat uit deze glassamenstelling.
DE3404363A1 (de) * 1984-02-08 1985-08-14 Schott Glaswerke, 6500 Mainz Hoch pbo-haltige glaeser im system sio(pfeil abwaerts)2(pfeil abwaerts)pbo-m(pfeil abwaerts)2(pfeil abwaerts)o mit erhoehter chemischer bestaendigkeit
JP2668049B2 (ja) * 1988-02-26 1997-10-27 株式会社オハラ 光学ガラス
US5162826A (en) * 1991-06-17 1992-11-10 Corning Incorporated High index ophthalmic glasses
US5302557A (en) * 1991-12-03 1994-04-12 E. I. Du Pont De Nemours And Company Automotive glass thick film conductor paste
DE4336122C1 (de) * 1993-10-22 1995-04-27 Deutsche Spezialglas Ag Hochbrechendes ophtalmisches Glas und Verwendung des Glases
EP0891308B1 (fr) * 1996-04-02 2001-10-04 Corning Incorporated Verres avec indice de refraction eleve et leur utilisation comme segments de lentilles correctrices multifocales
FR2746790B1 (fr) * 1996-04-02 1998-07-03 Corning Inc Verres a indice de refraction eleve et leur utilisation comme segments de lentilles correctrices multifocales
WO1998049110A1 (fr) * 1997-04-30 1998-11-05 Corning Incorporated Verres ophtalmiques a indice de refraction eleve, lentilles correctrices multifocales comprenant ces verres
DE102009027109B4 (de) * 2009-06-23 2012-02-16 Schott Ag Bleihaltiges Weltraumglas, seine Herstellung und Verwendung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU293772A1 (ru) * гуе , Гндн Оптическое стекло
FR2218295A1 (fr) * 1973-02-20 1974-09-13 American Optical Corp
FR2275414A1 (fr) * 1974-06-03 1976-01-16 Corning Glass Works Verres ophtalmiques a indice de refraction eleve
FR2323648A2 (fr) * 1975-09-12 1977-04-08 Corning Glass Works Verres ophtalmiques a indice de refraction eleve
GB1523534A (en) * 1975-11-07 1978-09-06 Corning Glass Works High refractive indes ophthalmic glasses

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3208860A (en) * 1962-07-31 1965-09-28 Corning Glass Works Phototropic material and article made therefrom
SU470170A1 (ru) * 1973-03-27 1977-10-05 Предприятие П/Я А-1170 Миксер
DE2520260C3 (de) * 1975-05-07 1978-07-13 Jenaer Glaswerk Schott & Gen., 6500 Mainz Phototropes Glas, geeignet als Nahteilmaterial zur Verschmelzung mit phototropen Fernteilgläsern, auf der Basis eines optischen Glases des Systems SiO2 -B2 O3 -Al2 O3 -La2 O3 -(ZnO)
US4190451A (en) * 1978-03-17 1980-02-26 Corning Glass Works Photochromic glass

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU293772A1 (ru) * гуе , Гндн Оптическое стекло
FR2218295A1 (fr) * 1973-02-20 1974-09-13 American Optical Corp
FR2275414A1 (fr) * 1974-06-03 1976-01-16 Corning Glass Works Verres ophtalmiques a indice de refraction eleve
FR2323648A2 (fr) * 1975-09-12 1977-04-08 Corning Glass Works Verres ophtalmiques a indice de refraction eleve
GB1523534A (en) * 1975-11-07 1978-09-06 Corning Glass Works High refractive indes ophthalmic glasses

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CA1971 *

Also Published As

Publication number Publication date
DE3008613C2 (fr) 1990-10-18
GB2045230B (en) 1982-12-15
ES489213A0 (es) 1981-03-16
JPS55121926A (en) 1980-09-19
GB2045230A (en) 1980-10-29
US4211569A (en) 1980-07-08
FR2450792B1 (fr) 1984-03-23
JPS5919053B2 (ja) 1984-05-02
ES8103848A1 (es) 1981-03-16
DE3008613A1 (de) 1980-09-11

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