BR8202793A - Vidro apropriado para fabricacao de segmentos ou botoes para lentes oftalmicas multifocais - Google Patents

Vidro apropriado para fabricacao de segmentos ou botoes para lentes oftalmicas multifocais

Info

Publication number
BR8202793A
BR8202793A BR8202793A BR8202793A BR8202793A BR 8202793 A BR8202793 A BR 8202793A BR 8202793 A BR8202793 A BR 8202793A BR 8202793 A BR8202793 A BR 8202793A BR 8202793 A BR8202793 A BR 8202793A
Authority
BR
Brazil
Prior art keywords
buttons
ophthalmic lenses
multifocal ophthalmic
glass suitable
manufacturing segments
Prior art date
Application number
BR8202793A
Other languages
English (en)
Inventor
Jean Emile Boudot
Jean Pierre Mazeau
Andre Christian Michaud
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 BR8202793A publication Critical patent/BR8202793A/pt

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
    • 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)
BR8202793A 1981-06-24 1982-05-14 Vidro apropriado para fabricacao de segmentos ou botoes para lentes oftalmicas multifocais BR8202793A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8112383A FR2508433A1 (fr) 1981-06-24 1981-06-24 Verres ophtalmiques a indice de refraction eleve

Publications (1)

Publication Number Publication Date
BR8202793A true BR8202793A (pt) 1983-04-26

Family

ID=9259823

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8202793A BR8202793A (pt) 1981-06-24 1982-05-14 Vidro apropriado para fabricacao de segmentos ou botoes para lentes oftalmicas multifocais

Country Status (6)

Country Link
US (1) US4351906A (pt)
JP (1) JPS5849643A (pt)
BR (1) BR8202793A (pt)
DE (1) DE3220674A1 (pt)
FR (1) FR2508433A1 (pt)
GB (1) GB2100715B (pt)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4507393A (en) * 1983-08-11 1985-03-26 Schott Glass Technologies, Inc. Highly prefractive, low dispersion optical glass suitable for multifocal corrective lenses
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
JP2668049B2 (ja) * 1988-02-26 1997-10-27 株式会社オハラ 光学ガラス
JPH05260196A (ja) * 1992-03-10 1993-10-08 Aiphone Co Ltd 集合住宅用インターホン装置
DE4336122C1 (de) * 1993-10-22 1995-04-27 Deutsche Spezialglas Ag Hochbrechendes ophtalmisches Glas und Verwendung des Glases
ES2165600T3 (es) * 1996-04-02 2002-03-16 Corning Inc Cristales con indice de refraccion elevado y su utilizacion como segmentos de lentes correctoras multifocales.
US6196684B1 (en) 1997-04-30 2001-03-06 Corning S.A. High refractive index glasses, multifocal corrective lenses containing same
FR2769618B1 (fr) * 1997-10-10 2000-01-21 Corning Sa Verres a indice de refraction eleve, lentilles correctrices multifocales les incorporant
EP1280741A1 (en) 2001-03-13 2003-02-05 Corning Incorporated Ophthalmic segment glass with high nd, lenses containing same
DE102009027109B4 (de) * 2009-06-23 2012-02-16 Schott Ag Bleihaltiges Weltraumglas, seine Herstellung und Verwendung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE389985A (pt) * 1931-07-29
US3902910A (en) * 1974-02-19 1975-09-02 Corning Glass Works Barium flint ophthalmic glasses
GB1509573A (en) * 1974-06-03 1978-05-04 Corning Glass Works High refractive index ophthalmic glasses
JPS5328448A (en) * 1976-08-30 1978-03-16 Agency Of Ind Science & Technol Tactile sensor
SU716017A1 (ru) * 1978-06-02 1980-02-15 Предприятие П/Я А-1695 Стекло
DE2824982C3 (de) * 1978-06-07 1981-04-30 Jenaer Glaswerk Schott & Gen., 6500 Mainz Hochbrechende optische Gläser des Systems SiO↓2↓-B↓2↓O↓3↓-TiO↓2↓- ZrO↓2↓-BaO-Nb↓2↓O↓5↓-Li↓2↓O mit geringer Dichte von s = 3,4 - 3,7 für Fernteil- und Nahteil-Brillengläser mit Brechwerten n↓D↓ = 1,79 - 1,81 und Dispersionen v↓D↓ = 31 - 29
US4211569A (en) * 1979-03-09 1980-07-08 Corning Glass Works High index ophthalmic glasses

Also Published As

Publication number Publication date
GB2100715A (en) 1983-01-06
FR2508433A1 (fr) 1982-12-31
JPS5849643A (ja) 1983-03-23
JPH0249258B2 (pt) 1990-10-29
DE3220674A1 (de) 1983-02-10
DE3220674C2 (pt) 1991-04-11
GB2100715B (en) 1984-11-21
US4351906A (en) 1982-09-28
FR2508433B1 (pt) 1984-09-07

Similar Documents

Publication Publication Date Title
BR8207659A (pt) Armacao de oculos para lentes multifocais
DE3381691D1 (de) Bifokale kontaktlinsen.
FR2533708B1 (fr) Lentille ophtalmique multifocale progressive
FR2552241B1 (fr) Lentille ophtalmique multifocale progressive
FI890407A (fi) Oftalminen moniteholinssi
FR2545615B1 (fr) Lentille ophtalmique multifocale progressive
DE3581303D1 (de) Ophthalmische linse.
BR8406643A (pt) Vidro para aplicacao oftalmicas
DE3751443D1 (de) Progressive Brillenlinse.
ES503911A0 (es) Procedimiento para la obtencion de vidrio optico y oftalmico
ES2012742A4 (es) Lentes oftalmicas difractivas multifocales.
DE3360393D1 (en) Photochromic glass for ophthalmic applications
HK73786A (en) Ophthalmic lenses
BR8108418A (pt) Lente oftalmica com duas superficies de refracao
ES536363A0 (es) Metodo para fabricar lentes de color fotocromicos oftalmicos de prescripcion
FR2617989B1 (fr) Lentille ophtalmique multifocale
DK26484D0 (da) Brillestel til multifokale brilleglas
BR8205714A (pt) Vidro otico e oftalmico
ES513826A0 (es) Cristal para gafas de alto valor positivo de refraccion.
BR8500502A (pt) Processo para fabricar lentes oftalmicas
BR8202793A (pt) Vidro apropriado para fabricacao de segmentos ou botoes para lentes oftalmicas multifocais
ES512714A0 (es) Prodecimiento para la obtencion de vidrio optico y oftalmico.
GB2013925B (en) Multifocal spectacle lens
ES516203A0 (es) Perfeccionamientos introducidos en la fabricacion de lentes oftalmicas laminadas.
IT8026079A0 (it) Metodo per la fabbricazione di vetri fotocromici colorati.

Legal Events

Date Code Title Description
B21A Expiry acc. art. 78, item i of ipl- expiry of the term of protection

Free format text: PATENTE EXTINTA EM 14/05/97

B15K Others concerning applications: alteration of classification

Ipc: C03C 3/07 (2006.01)