ES8103848A1 - Perfeccionamientos introducidos en el proceso de fabricacion de cristales oftalmicos con gran indice de refraccion. - Google Patents

Perfeccionamientos introducidos en el proceso de fabricacion de cristales oftalmicos con gran indice de refraccion.

Info

Publication number
ES8103848A1
ES8103848A1 ES489213A ES489213A ES8103848A1 ES 8103848 A1 ES8103848 A1 ES 8103848A1 ES 489213 A ES489213 A ES 489213A ES 489213 A ES489213 A ES 489213A ES 8103848 A1 ES8103848 A1 ES 8103848A1
Authority
ES
Spain
Prior art keywords
glasses
high index
li2o
na2o
segments
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.)
Expired
Application number
ES489213A
Other languages
English (en)
Other versions
ES489213A0 (es
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 ES489213A0 publication Critical patent/ES489213A0/es
Publication of ES8103848A1 publication Critical patent/ES8103848A1/es
Expired 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

PROCEDIMIENTO PARA LA FABRICACION DE CRISTALES OFTALMICOS CON GRAN INDICE DE REFRACCION. LOS COMPONENTES DE CRISTAL SE UNEN EN MOLINOS Y DESPUES SE ABLANDAN EN UN HORNO, DURANTE DIECISEIS HORAS, ENTRE 1.400 Y 1.500GC, CON AGITACION. POSTERIORMENTE SE SOMETE A UN RECOCIDO A 50GC, OBTENIENDO UN CRISTAL CON UN INDICE DE REFRACCION ENTRE 1,58 Y 1,71, UNA TEMPERATURA DE REBLANDECIMIENTO ENTRE 620 Y 645GC, UNA TEMPERATURA DE DEFORMACION ENTRE 445 Y 480GC, UN COEFICIENTE DE DILATACION TERMICA (0-300GC) ENTRE 60 Y 66 X 10 ELEVADO A -7 GC ELEVADO A -1, Y UNA PERDIDA DE PESO NO SUPERIOR A 0,03 MG/CM CUADRADOS, Y SIN NINGUNA IMPERFECCION SUPERFICIAL DESPUES DE SOMETERSE A IMPRESION EN UNA SOLUCION ACUOSA AL 10 POR 100 EN PESO DE HCL DURANTE DIEZ MINUTOS A 25GC.
ES489213A 1979-03-09 1980-03-05 Perfeccionamientos introducidos en el proceso de fabricacion de cristales oftalmicos con gran indice de refraccion. Expired ES8103848A1 (es)

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
ES489213A0 ES489213A0 (es) 1981-03-16
ES8103848A1 true ES8103848A1 (es) 1981-03-16

Family

ID=21792206

Family Applications (1)

Application Number Title Priority Date Filing Date
ES489213A Expired ES8103848A1 (es) 1979-03-09 1980-03-05 Perfeccionamientos introducidos en el proceso de fabricacion de cristales oftalmicos con gran indice de refraccion.

Country Status (6)

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

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
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
AU712512B2 (en) * 1996-04-02 1999-11-11 Corning S.A. Glasses with a high refractive index and their use as segments of multifocal corrective lenses
BR9809585A (pt) * 1997-04-30 2000-10-17 Corning Inc "vidros com alto ìndice de refração, lente corretiva multifocal contendo os mesmos"
DE102009027109B4 (de) * 2009-06-23 2012-02-16 Schott Ag Bleihaltiges Weltraumglas, seine Herstellung und Verwendung

Family Cites Families (8)

* 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
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
SU470170A1 (ru) * 1973-03-27 1977-10-05 Предприятие П/Я А-1170 Миксер
GB1509573A (en) * 1974-06-03 1978-05-04 Corning Glass Works High refractive index ophthalmic glasses
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)
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
US4190451A (en) * 1978-03-17 1980-02-26 Corning Glass Works Photochromic glass

Also Published As

Publication number Publication date
US4211569A (en) 1980-07-08
DE3008613C2 (es) 1990-10-18
JPS5919053B2 (ja) 1984-05-02
ES489213A0 (es) 1981-03-16
DE3008613A1 (de) 1980-09-11
GB2045230A (en) 1980-10-29
FR2450792A1 (fr) 1980-10-03
GB2045230B (en) 1982-12-15
FR2450792B1 (es) 1984-03-23
JPS55121926A (en) 1980-09-19

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