ES2043829T3 - Vidrios de baja densidad, alto indice y quimicamente durables. - Google Patents

Vidrios de baja densidad, alto indice y quimicamente durables.

Info

Publication number
ES2043829T3
ES2043829T3 ES88307010T ES88307010T ES2043829T3 ES 2043829 T3 ES2043829 T3 ES 2043829T3 ES 88307010 T ES88307010 T ES 88307010T ES 88307010 T ES88307010 T ES 88307010T ES 2043829 T3 ES2043829 T3 ES 2043829T3
Authority
ES
Spain
Prior art keywords
low density
high index
chemically durable
crystals
glasses
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 - Lifetime
Application number
ES88307010T
Other languages
English (en)
Inventor
Jean E Boudot
Jean-Pierre Mazeau
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
Priority claimed from FR8711586A external-priority patent/FR2619375B1/fr
Application filed by Corning Glass Works filed Critical Corning Glass Works
Application granted granted Critical
Publication of ES2043829T3 publication Critical patent/ES2043829T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C03C3/062—Glass compositions containing silica with less than 40% silica by weight
    • C03C3/064—Glass compositions containing silica with less than 40% silica by weight containing boron
    • C03C3/068—Glass compositions containing silica with less than 40% silica by weight containing boron containing rare earths

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)

Abstract

ESTA INVENCION SE REFIERE A LA PRODUCCION DE CRISTALES ESPECIALMENTE CONVENIENTES PARA USO COMO LENTES OFTALMICAS QUE MUESTRAN INDICES DE REFRACCION ENTRE 1699 Y 1703, NUMEROS ABBE IGUALES O SUPERIORES QUE 41.0 , DENSIDADES MENORES DE 3.25 GR/CM3 Y BUENA RESISTENCIA AL ATAQUE POR ACIDOS. LOS CRISTALES ESTAN ESPECIALMENTE LIBRES DE AL2O3 Y CONSISTEN ESENCIALMENTE EN UN PESO PORCENTUAL SOBRE BASE DE OXIDO INDICADO EN LA TABLA(I)
ES88307010T 1987-08-14 1988-07-29 Vidrios de baja densidad, alto indice y quimicamente durables. Expired - Lifetime ES2043829T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8711586A FR2619375B1 (fr) 1987-08-14 1987-08-14 Verre a haut indice de refraction, faible dispersion, faible densite et durabilite chimique amelioree
US07/190,839 US4839314A (en) 1987-08-14 1988-05-06 Chemically durable, high index, low density glasses

Publications (1)

Publication Number Publication Date
ES2043829T3 true ES2043829T3 (es) 1994-01-01

Family

ID=26226172

Family Applications (1)

Application Number Title Priority Date Filing Date
ES88307010T Expired - Lifetime ES2043829T3 (es) 1987-08-14 1988-07-29 Vidrios de baja densidad, alto indice y quimicamente durables.

Country Status (7)

Country Link
EP (1) EP0303375B1 (es)
JP (1) JP2686777B2 (es)
AU (1) AU603474B2 (es)
BR (1) BR8804084A (es)
DE (1) DE3884715T2 (es)
ES (1) ES2043829T3 (es)
IL (1) IL87325A (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4136975A1 (de) * 1991-01-23 1992-07-30 Schott Glaswerke Optisches und ophtalmisches glas mit einem brechwert nd >= 1,68 und einer abbezahl (ny)(pfeil abwaerts)d(pfeil abwaerts) >= 41,6
FR2789071B1 (fr) * 1999-02-03 2002-03-22 Corning Sa VERRE MINERAL (n#1,7), AVANTAGEUSEMENT RENFORCE PAR ECHANGE IONIQUE; LENTILLES OPHTALMIQUES EN LEDIT VERRE
JP6573781B2 (ja) * 2015-06-02 2019-09-11 光ガラス株式会社 光学ガラス、光学ガラスを用いた光学素子、光学装置
EP3381872A4 (en) * 2015-11-24 2019-08-21 AGC Inc. OPTICAL GLASS
DE102016107934B4 (de) 2016-04-28 2023-07-13 Schott Ag Verfahren zur Herstellung hochbrechender Dünnglassubstrate

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS529012A (en) * 1975-07-10 1977-01-24 Hoya Glass Works Ltd Glass for lens of eyeglass
JPS5269915A (en) * 1975-12-10 1977-06-10 Hoya Glass Works Ltd Glass for lens of eyeglasses
DE3026605C2 (de) * 1980-07-14 1983-07-07 Schott Glaswerke, 6500 Mainz Säurefestes, hydrolytisch beständiges optisches und ophthalmisches Borosilikat-Glas geringer Dichte
BR8605356A (pt) * 1985-11-29 1987-08-04 Corning Glass Works Vidro para aplicacoes oticas e/ou oftalmicas

Also Published As

Publication number Publication date
DE3884715T2 (de) 1994-04-21
JPH01157430A (ja) 1989-06-20
AU2040688A (en) 1989-02-16
BR8804084A (pt) 1989-03-07
IL87325A0 (en) 1989-01-31
EP0303375A1 (en) 1989-02-15
EP0303375B1 (en) 1993-10-06
JP2686777B2 (ja) 1997-12-08
AU603474B2 (en) 1990-11-15
IL87325A (en) 1994-06-24
DE3884715D1 (de) 1993-11-11

Similar Documents

Publication Publication Date Title
ES2029994T3 (es) Cristales opticos y oftalmicos.
AR023720A1 (es) Composiciones de hidrogel de alto indice de refraccion para implantes oftalmicos
ES2076811T3 (es) Cristales con indice de refraccion muy alto y baja densidad.
DE3875582D1 (de) Optische faser mit fluoreszentem additiv.
ES8606213A1 (es) Perfeccionamientos introducidos en cristales para aplicaciones oftalmicas.
EP1078894A3 (en) Optical glass for precision molding
GB979193A (en) Optical glasses
IT7940021A0 (it) Occhiali in carbonato di allile procedimento per la fabbricazione diglicole o in altre sostanze avendi schermi protettivi per gli octi proprieta simili chi e in particolare di lenti per
SE7704049L (sv) Glaskomposition
ES2043829T3 (es) Vidrios de baja densidad, alto indice y quimicamente durables.
MY118851A (en) Light-induced refractive index changes in low temperature glasses
ES2060112T3 (es) Aplicacion de peliculas de poliester compuestas antiadherentes como soporte para la formacion de al menos una capa de poliuretano utilizable en los cristales de seguridad.
KR890017183A (ko) 내화학성, 고 굴절율, 저밀도 유리
ES481326A1 (es) Procedimiento para la obtencion de lentes en bruto para gafas.
GB1327543A (en) Optical glass with controlled ultraviolet transmission
GB812576A (en) Improvements in or relating to glass composition
ES2041808T3 (es) Vidrio de indice de refraccion medio adecuado para aplicaciones oftalmicas.
JPS5441965A (en) Manufacture of optical element
ES472190A1 (es) Procedimiento para la fabricacion de elementos de vidrio transparente.
GB669259A (en) Ophthalmic glass
GB627672A (en) Improvements in and relating to optical glass
GB1302526A (es)
ATE7381T1 (de) Lichtleitfaser mit brechungsindexgradient.
AR006758A1 (es) Vidrios opticos con un alto indice de refraccion y uso de los mismos como secciones de lentes correctivas multifocales
Suleimenov et al. Properties of glasses in the system CaAl sub 2 Si sub 2 O sub 8- CaSiO sub 3- CaMgSi sub 2 O sub 6

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 303375

Country of ref document: ES