[go: up one dir, main page]

AR006758A1 - Vidrios opticos con un alto indice de refraccion y uso de los mismos como secciones de lentes correctivas multifocales - Google Patents

Vidrios opticos con un alto indice de refraccion y uso de los mismos como secciones de lentes correctivas multifocales

Info

Publication number
AR006758A1
AR006758A1 ARP970101322A ARP970101322A AR006758A1 AR 006758 A1 AR006758 A1 AR 006758A1 AR P970101322 A ARP970101322 A AR P970101322A AR P970101322 A ARP970101322 A AR P970101322A AR 006758 A1 AR006758 A1 AR 006758A1
Authority
AR
Argentina
Prior art keywords
sections
optical glasses
refraction index
high refraction
corrective lenses
Prior art date
Application number
ARP970101322A
Other languages
English (en)
Original Assignee
Corning 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
Priority claimed from FR9604117A external-priority patent/FR2746790B1/fr
Application filed by Corning Sa filed Critical Corning Sa
Publication of AR006758A1 publication Critical patent/AR006758A1/es

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
    • C03C3/062—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
    • Y10S501/903—Optical glass, e.g. silent on refractive index and/or ABBE number having refractive index less than 1.8 and ABBE number less than 70

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

La invención se refiere a vidrios ópticos caracterizados porque presentan un índice de refracción más alto que 1,740; un coeficiente de dilatación (x que-entre 25 y 300*C- se encuentra en el rango de 65 a 70 x 10(-7)/*C y un punto Litleton que noexcede 635*C pero que es mayhor que 600*C. Estos tienen lasiguiente composición, expresada en porcentaje ponderal de óxidos: SiO2 de 23 a 32,0; Al2O3 de 1,5 a 5,0; B2O3 de 5 a 9,0; PbO de 43 a 54,0; Li2O de 0 a 0,5;Na2O de 0 a 1,0; K2O de 0 a 1,0con Li2O+Na2O+K2O menor que 1,0; BaO+SrO de 4 a 9,0; TiO2 de 0 a 4,0; ZrO2 de 0 a 2,0; La2O3 de 0 a 3,0; NbO5 de 0 a 3,0;As2O3 de 0 a 0,3; Sv2O3 de 0 a 0,4; con ZrO2+La2O3+NbO5 de 1,5 a 4,0 también se relaciona con el uso de tales vidrios para laproduc ción de secciones a serusadas en la producción de lentes multifocales, particularmete fotocromáticas.
ARP970101322A 1996-04-02 1997-04-03 Vidrios opticos con un alto indice de refraccion y uso de los mismos como secciones de lentes correctivas multifocales AR006758A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9604117A FR2746790B1 (fr) 1996-04-02 1996-04-02 Verres a indice de refraction eleve et leur utilisation comme segments de lentilles correctrices multifocales
US1749996P 1996-05-10 1996-05-10

Publications (1)

Publication Number Publication Date
AR006758A1 true AR006758A1 (es) 1999-09-29

Family

ID=26232628

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP970101322A AR006758A1 (es) 1996-04-02 1997-04-03 Vidrios opticos con un alto indice de refraccion y uso de los mismos como secciones de lentes correctivas multifocales

Country Status (10)

Country Link
US (1) US6046123A (es)
EP (1) EP0891308B1 (es)
JP (1) JP2000507910A (es)
AR (1) AR006758A1 (es)
AU (1) AU712512B2 (es)
BR (1) BR9708373A (es)
CA (1) CA2248921A1 (es)
DE (1) DE69707120T2 (es)
ES (1) ES2165600T3 (es)
WO (1) WO1997036834A1 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005003594B4 (de) * 2004-12-31 2016-02-18 Schott Ag Verfahren zur Herstellung eines optischen Bauteils, verfahrensgemäß hergestelltes Bauteil sowie derartige Bauteile umfassende Einrichtung
CN102442775B (zh) * 2010-10-09 2014-03-26 湖北新华光信息材料有限公司 高折射双焦子片光学玻璃及其制作方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2323648A2 (fr) * 1975-09-12 1977-04-08 Corning Glass Works Verres ophtalmiques a indice de refraction eleve
US4211569A (en) * 1979-03-09 1980-07-08 Corning Glass Works High index ophthalmic glasses
FR2508433A1 (fr) * 1981-06-24 1982-12-31 Corning Glass Works Verres ophtalmiques a indice de refraction eleve
JPS6096542A (ja) * 1983-10-27 1985-05-30 Hoya Corp 多焦点眼鏡レンズ用ガラス
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
DE3501100A1 (de) * 1985-01-15 1986-07-17 Schott Glaswerke, 6500 Mainz Optisches cdo- und tho(pfeil abwaerts)2(pfeil abwaerts)-freies glas mit brechwerten 1,73 - 1,78 und abbezahlen 30 - 34 und mit sehr guter entglasungsstabilitaet
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
DE4301057C1 (de) * 1993-01-16 1994-03-31 Schott Glaswerke Cadmiumfreie, farbige Anlaufgläser auf Basis eines PbO-SiO¶2¶ -Grundglases und deren Verwendung

Also Published As

Publication number Publication date
DE69707120T2 (de) 2002-06-13
JP2000507910A (ja) 2000-06-27
DE69707120D1 (de) 2001-11-08
US6046123A (en) 2000-04-04
EP0891308B1 (en) 2001-10-04
ES2165600T3 (es) 2002-03-16
WO1997036834A1 (en) 1997-10-09
EP0891308A4 (en) 1999-07-28
AU712512B2 (en) 1999-11-11
AU2550297A (en) 1997-10-22
BR9708373A (pt) 1999-08-03
CA2248921A1 (en) 1997-10-09
EP0891308A1 (en) 1999-01-20

Similar Documents

Publication Publication Date Title
FI902554A0 (fi) Glasfibrer med foerbaettrad biologisk foerdragsamhet.
GB1286749A (en) Glass having high refraction, especially for fibre optical applications
MY124408A (en) Lead-free optical glasses
ES8606213A1 (es) Perfeccionamientos introducidos en cristales para aplicaciones oftalmicas.
ES2096025T3 (es) Composicion de vidrio de borosilicato.
ATE156785T1 (de) Glasfaserzusammensetzungen
GB1509573A (en) High refractive index ophthalmic glasses
MX9600069A (es) Lentes oftalmicos incoloros.
CA1071243A (en) Optical glasses
CA2046219A1 (en) Phosphate glasses for glass molds
TW200500313A (en) Preferably Pb-free and As-free optical glasses with tg≤500 DEG C
US2523265A (en) Ophthalmic glass
US2606841A (en) Optical glass
JPS56100151A (en) Tantalum oxide-free optical glass of high refraction
FR2428012A1 (fr) Verres pour lunettes a haut indice de refraction et a faible masse volu
ES8103848A1 (es) Perfeccionamientos introducidos en el proceso de fabricacion de cristales oftalmicos con gran indice de refraccion.
AR006758A1 (es) Vidrios opticos con un alto indice de refraccion y uso de los mismos como secciones de lentes correctivas multifocales
MY119592A (en) Lead-free optical glasses
JPH0741334A (ja) 光学ガラス
US4562162A (en) Glass for multi-focal eyeglass lens
GB2029401A (en) Optical Glass for Optical Paths
CA2066495A1 (en) High index ophthalmic glasses
ATE136873T1 (de) Bleifreies kristallglas mit hoher lichttransmission
JPS60122747A (ja) 光学ガラス
BR9812743A (pt) Vidros de alto ìndice de refração e lentes corretivas multifocais contendo os mesmos

Legal Events

Date Code Title Description
FA Abandonment or withdrawal