GB1302526A - - Google Patents
Info
- Publication number
- GB1302526A GB1302526A GB1302526DA GB1302526A GB 1302526 A GB1302526 A GB 1302526A GB 1302526D A GB1302526D A GB 1302526DA GB 1302526 A GB1302526 A GB 1302526A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glass
- geo
- sio
- total
- optical
- 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
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
-
- 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
- C03C3/12—Silica-free oxide glass compositions
- C03C3/14—Silica-free oxide glass compositions containing boron
- C03C3/15—Silica-free oxide glass compositions containing boron containing rare earths
- C03C3/155—Silica-free oxide glass compositions containing boron containing rare earths containing zirconium, titanium, tantalum or niobium
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
1302526 Optical glass PILKINGTON BROS Ltd 19 Feb 1970 [25 March 1969] 15590/69 Heading C1M An optical glass composition consists of, in weight per cent, SiO 2 0-20; B 2 O 3 8-30; GeO 2 0-15; La 2 O 3 15-30; ZrO 2 0-10; Ta 2 O 5 up to 25; Nb 2 O 5 up to 25, the total of Ta 2 O 5 and Nb 2 O 5 not exceeding 25; TiO 2 0-5; BaO (part of which may be replaced by CaO) 5-25; and Al 2 O 3 0-5; the total of SiO 2 , B 2 O 3 and GeO 2 being at least 20. The glass may be used as a core glass in an optical fibre, as a face-plate in a fibre optic device, in lenses and in mirrors.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1559069 | 1969-03-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1302526A true GB1302526A (en) | 1973-01-10 |
Family
ID=10061857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1302526D Expired GB1302526A (en) | 1969-03-25 | 1969-03-25 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE747942A (en) |
| DE (1) | DE2010672A1 (en) |
| FR (1) | FR2037247A1 (en) |
| GB (1) | GB1302526A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5288669A (en) * | 1992-04-22 | 1994-02-22 | Corning France S.A. | Glasses with very high index of refraction and low density |
| CN110128007A (en) * | 2017-07-03 | 2019-08-16 | 成都光明光电股份有限公司 | Flint optical glass with heavy lanthanum |
| WO2023040169A1 (en) * | 2021-09-14 | 2023-03-23 | 中国建筑材料科学研究总院有限公司 | Medium expansion optical fiber image transmission element and fabricating method therefor |
| WO2023040168A1 (en) * | 2021-09-14 | 2023-03-23 | 中国建筑材料科学研究总院有限公司 | High-refractive-index glass for medium expansion optical fiber image-transmitting element and preparation method therefor |
-
1969
- 1969-03-25 GB GB1302526D patent/GB1302526A/en not_active Expired
-
1970
- 1970-03-03 DE DE19702010672 patent/DE2010672A1/en active Pending
- 1970-03-17 FR FR7009405A patent/FR2037247A1/fr not_active Withdrawn
- 1970-03-25 BE BE747942D patent/BE747942A/en unknown
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5288669A (en) * | 1992-04-22 | 1994-02-22 | Corning France S.A. | Glasses with very high index of refraction and low density |
| CN110128007A (en) * | 2017-07-03 | 2019-08-16 | 成都光明光电股份有限公司 | Flint optical glass with heavy lanthanum |
| WO2023040169A1 (en) * | 2021-09-14 | 2023-03-23 | 中国建筑材料科学研究总院有限公司 | Medium expansion optical fiber image transmission element and fabricating method therefor |
| WO2023040168A1 (en) * | 2021-09-14 | 2023-03-23 | 中国建筑材料科学研究总院有限公司 | High-refractive-index glass for medium expansion optical fiber image-transmitting element and preparation method therefor |
| US11858846B2 (en) | 2021-09-14 | 2024-01-02 | China Building Materials Academy | Glass with high refractive index for fiber optic imaging element with medium-expansion and fabrication method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2037247A1 (en) | 1970-12-31 |
| BE747942A (en) | 1970-09-25 |
| DE2010672A1 (en) | 1970-10-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1286749A (en) | Glass having high refraction, especially for fibre optical applications | |
| GB1521826A (en) | Optical fibres | |
| GB1416206A (en) | Alkali-resistant glass fibres | |
| GB1509573A (en) | High refractive index ophthalmic glasses | |
| GB979193A (en) | Optical glasses | |
| GB1286903A (en) | Photochromic glass for optical fibre fabrication | |
| GB1302526A (en) | ||
| FR1411271A (en) | New glasses with a high refractive index and their applications in the manufacture of reflective beads | |
| GB619971A (en) | Improved manufacture of optical glass | |
| GB725206A (en) | Optical glass | |
| GB765244A (en) | Improvements in or relating to the manufacture of mineral fibres or threads which are stable to weathering, decay, efflorescence or disintegration | |
| GB1246889A (en) | Phototropic glass | |
| GB1181840A (en) | Flint Optical Glass | |
| GB1233512A (en) | ||
| GB1224446A (en) | Optical glass | |
| GB1224169A (en) | Improvements in or relating to thorium-free optical glass | |
| GB1089597A (en) | Improvements in or relating to glass | |
| GB1527848A (en) | Copper-cadmium-silver photochromic glass | |
| GB1477538A (en) | Glass optical fibres | |
| GB804106A (en) | Improvements in or relating to glass compositions | |
| GB1160535A (en) | Dielectric Fibres | |
| GB1411766A (en) | Photochromic glasses | |
| GB1054297A (en) | Improvements in or relating to Glass | |
| GB1418429A (en) | Fibre optic devices | |
| GB1428880A (en) | Phototropic glass |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |