BR9812743A - High refractive index glasses and multifocal corrective lenses containing the same - Google Patents
High refractive index glasses and multifocal corrective lenses containing the sameInfo
- Publication number
- BR9812743A BR9812743A BR9812743-8A BR9812743A BR9812743A BR 9812743 A BR9812743 A BR 9812743A BR 9812743 A BR9812743 A BR 9812743A BR 9812743 A BR9812743 A BR 9812743A
- Authority
- BR
- Brazil
- Prior art keywords
- high refractive
- refractive index
- same
- multifocal
- corrective lenses
- Prior art date
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
-
- 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
- C03C3/074—Glass compositions containing silica with less than 40% silica by weight containing lead containing boron containing zinc
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
Patente de Invenção para <B>"VIDROS DE ALTO ìNDICE DE REFRAçãO E LENTES CORRETIVAS MULTIFOCAIS CONTENDO OS MESMOS"<D>. A presente invenção se refere a vidros de alto índice de refração, tendo a seguinte composição de óxidos, expressa em percentagens por peso: SiO~ 2~ 29 - 35, B~ 2~O~ 3~ 0,5 - 5, Li~ 2~O 0,5 - 3, Na~ 2~O 4 - 8, K~ 2~O 0 - 2, PbO 28 - 40, BaO 4-14, La~ 2~O~ 3~ 4 - 12, TiO~ 2~ 3 - 8, ZnO 0 - 8, ZrO~ 2~ 0 - 4, Nb~ 2~O~ 5~ 0 - 5, com: Li~ 2~O +Na~ 2~O+K~ 2~O 5,5 - 9, seu uso para a produção de segmentos para lentes corretivas multifocais; e lentes corretivas multifocais incorporando pelo menos um tal segmento em sua estrutura.Invention Patent for <B> "HIGH REFRACTIVE GLASSES AND MULTIFOCAL CORRECTIVE LENSES CONTAINING THE SAME" <D>. The present invention relates to high refractive index glasses, having the following oxide composition, expressed in percentages by weight: SiO ~ 2 ~ 29 - 35, B ~ 2 ~ O ~ 3 ~ 0.5 - 5, Li ~ 2 ~ O 0.5 - 3, Na ~ 2 ~ O 4 - 8, K ~ 2 ~ O 0 - 2, PbO 28 - 40, BaO 4-14, La ~ 2 ~ O ~ 3 ~ 4 - 12, TiO ~ 2 ~ 3 - 8, ZnO 0 - 8, ZrO ~ 2 ~ 0 - 4, Nb ~ 2 ~ O ~ 5 ~ 0 - 5, with: Li ~ 2 ~ O + Na ~ 2 ~ O + K ~ 2 ~ 5.5 - 9, its use for the production of segments for corrective multifocal lenses; and multifocal corrective lenses incorporating at least one such segment in its structure.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9712664A FR2769618B1 (en) | 1997-10-10 | 1997-10-10 | HIGH REFRACTIVE INDEX GLASSES, MULTIFOCAL CORRECTIVE LENSES INCORPORATING THE SAME |
| PCT/US1998/020350 WO1999019266A1 (en) | 1997-10-10 | 1998-09-29 | High refractive index glasses, multifocal corrective lenses containing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR9812743A true BR9812743A (en) | 2000-08-29 |
Family
ID=9512066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR9812743-8A BR9812743A (en) | 1997-10-10 | 1998-09-29 | High refractive index glasses and multifocal corrective lenses containing the same |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1028921A4 (en) |
| JP (1) | JP2001519316A (en) |
| CN (1) | CN1272832A (en) |
| BR (1) | BR9812743A (en) |
| FR (1) | FR2769618B1 (en) |
| WO (1) | WO1999019266A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2408225A1 (en) | 2001-03-13 | 2002-09-19 | Corning Incorporated | Ophthalmic segment glass with high nd |
| DK174792B1 (en) * | 2001-09-07 | 2003-11-24 | Coloplast As | Packaging for an ostomy device |
| US7897531B2 (en) | 2005-01-17 | 2011-03-01 | Kabushiki Kaisha Ohara | Glass |
| WO2018155105A1 (en) * | 2017-02-24 | 2018-08-30 | 日本電気硝子株式会社 | Optical glass |
| JP7134396B2 (en) * | 2017-02-24 | 2022-09-12 | 日本電気硝子株式会社 | optical glass |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5284211A (en) * | 1975-12-19 | 1977-07-13 | Obara Optical Glass | Optical glass |
| FR2508433A1 (en) * | 1981-06-24 | 1982-12-31 | Corning Glass Works | OPHTHALMIC LENSES WITH HIGH REFRACTIVE INDEX |
| DE3228826C2 (en) * | 1982-08-02 | 1986-09-25 | Schott Glaswerke, 6500 Mainz | Highly absorbent Pb-containing glasses for cathode ray tube screens |
| JPS6096541A (en) * | 1983-10-27 | 1985-05-30 | Hoya Corp | Glass for multi-focus eyegalss lens |
| JPS60221338A (en) * | 1984-04-12 | 1985-11-06 | Ohara Inc | Optical glass |
| JP2668049B2 (en) * | 1988-02-26 | 1997-10-27 | 株式会社オハラ | Optical glass |
| JPH042628A (en) * | 1990-04-19 | 1992-01-07 | Alps Electric Co Ltd | Optical glass for pressed lens |
| US5162826A (en) * | 1991-06-17 | 1992-11-10 | Corning Incorporated | High index ophthalmic glasses |
| JP3194835B2 (en) * | 1994-06-30 | 2001-08-06 | ホーヤ株式会社 | Optical glass |
-
1997
- 1997-10-10 FR FR9712664A patent/FR2769618B1/en not_active Expired - Fee Related
-
1998
- 1998-09-29 WO PCT/US1998/020350 patent/WO1999019266A1/en not_active Application Discontinuation
- 1998-09-29 JP JP2000515843A patent/JP2001519316A/en active Pending
- 1998-09-29 BR BR9812743-8A patent/BR9812743A/en not_active IP Right Cessation
- 1998-09-29 CN CN 98809787 patent/CN1272832A/en active Pending
- 1998-09-29 EP EP98949600A patent/EP1028921A4/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001519316A (en) | 2001-10-23 |
| EP1028921A1 (en) | 2000-08-23 |
| FR2769618A1 (en) | 1999-04-16 |
| FR2769618B1 (en) | 2000-01-21 |
| EP1028921A4 (en) | 2006-04-05 |
| WO1999019266A1 (en) | 1999-04-22 |
| CN1272832A (en) | 2000-11-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| MY124408A (en) | Lead-free optical glasses | |
| ES8606213A1 (en) | Glasses for ophthalmic applications. | |
| US10487004B2 (en) | Optical glass and optical element | |
| HUP0003037A2 (en) | Leadless and bariumless crystalline glass | |
| EP1078894A3 (en) | Optical glass for precision molding | |
| GB1286749A (en) | Glass having high refraction, especially for fibre optical applications | |
| JPS61197443A (en) | Optical glass | |
| BR9808614A (en) | Lenses with very high refractive index. | |
| JPH09188540A (en) | Optical glass free from solarization | |
| FR2428013A1 (en) | VERY REFRINGENT LOW DENSITY OPTICAL LENSES FOR DOUBLE FOCAL EYEWEAR LENSES | |
| JPS56169150A (en) | Optical glass | |
| CA1071243A (en) | Optical glasses | |
| JPH0492834A (en) | Optical glass for precise press | |
| BR9808615A (en) | Enhanced photochromic lenses | |
| BR9812743A (en) | High refractive index glasses and multifocal corrective lenses containing the same | |
| GB666711A (en) | Improvements in ophthalmic glasses | |
| JPS55126549A (en) | High refraction high dispersion optical glass | |
| JPS61219739A (en) | Cdo-free and tho2-free optical glass having refractive indexof 1.73-1.78, abbe's number of 30-34 and high devitrification stability | |
| JPH0741334A (en) | Optical glass | |
| BR9809585A (en) | "glasses with high refractive index, multifocal corrective lens containing them" | |
| DE3270298D1 (en) | Glasses, methods for making them, and optical fibres containing them | |
| US3006776A (en) | Optical glass | |
| FR2393767A1 (en) | COMPOSITION FOR PREPARING GLASS WITH A HIGH REFRACTION INDEX | |
| MY119592A (en) | Lead-free optical glasses | |
| CA2066495A1 (en) | High index ophthalmic glasses |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B08F | Application fees: dismissal - article 86 of industrial property law |
Free format text: REFERENTE A 7A ANUIDADE. |
|
| B08K | Lapse as no evidence of payment of the annual fee has been furnished to inpi (acc. art. 87) |
Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1832 DE 14/02/2006. |