BE739794A - - Google Patents
Info
- Publication number
- BE739794A BE739794A BE739794DA BE739794A BE 739794 A BE739794 A BE 739794A BE 739794D A BE739794D A BE 739794DA BE 739794 A BE739794 A BE 739794A
- Authority
- BE
- Belgium
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
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/002—Thermal treatment
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/10—Non-chemical treatment
- C03B37/14—Re-forming fibres or filaments, i.e. changing their shape
- C03B37/15—Re-forming fibres or filaments, i.e. changing their shape with heat application, e.g. for making optical fibres
-
- 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
- C03C13/00—Fibre or filament compositions
- C03C13/04—Fibre optics, e.g. core and clad fibre compositions
-
- 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
- C03C13/00—Fibre or filament compositions
- C03C13/04—Fibre optics, e.g. core and clad fibre compositions
- C03C13/045—Silica-containing oxide glass compositions
- C03C13/046—Multicomponent glass compositions
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/028—Optical fibres with cladding with or without a coating with core or cladding having graded refractive index
- G02B6/0281—Graded index region forming part of the central core segment, e.g. alpha profile, triangular, trapezoidal core
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geochemistry & Mineralogy (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Optics & Photonics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Glass Compositions (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7209568 | 1968-10-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE739794A true BE739794A (cg-RX-API-DMAC7.html) | 1970-03-16 |
Family
ID=13479490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE739794D BE739794A (cg-RX-API-DMAC7.html) | 1968-10-03 | 1969-10-03 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3817731A (cg-RX-API-DMAC7.html) |
| BE (1) | BE739794A (cg-RX-API-DMAC7.html) |
| DE (1) | DE1949275C3 (cg-RX-API-DMAC7.html) |
| FR (1) | FR2019824B1 (cg-RX-API-DMAC7.html) |
| GB (1) | GB1266524A (cg-RX-API-DMAC7.html) |
| NL (1) | NL6914795A (cg-RX-API-DMAC7.html) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3894857A (en) * | 1968-07-06 | 1975-07-15 | Nippon Selfoc Co Ltd | Process for exchanging alkali ions for thallium ions in a glass fiber |
| US3859103A (en) * | 1973-03-08 | 1975-01-07 | Nippon Selfoc Co Ltd | Optical glass body having a refractive index gradient |
| US3963468A (en) * | 1974-02-15 | 1976-06-15 | Bell Telephone Laboratories, Incorporated | Light guide fabrication |
| US3904268A (en) * | 1974-11-15 | 1975-09-09 | Corning Glass Works | Optical waveguide having optimal index gradient |
| US4069031A (en) * | 1976-05-10 | 1978-01-17 | Owens-Illinois, Inc. | Process for forming two different indices of refraction in a glass ceramic |
| DE2843276C2 (de) * | 1978-10-04 | 1980-05-29 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Verfahren zur Herstellung eines Lichtwellenleiters |
-
1969
- 1969-09-25 GB GB1266524D patent/GB1266524A/en not_active Expired
- 1969-09-30 NL NL6914795A patent/NL6914795A/xx unknown
- 1969-09-30 DE DE1949275A patent/DE1949275C3/de not_active Expired
- 1969-10-02 FR FR6933662A patent/FR2019824B1/fr not_active Expired
- 1969-10-03 BE BE739794D patent/BE739794A/xx not_active IP Right Cessation
-
1972
- 1972-05-15 US US00253364A patent/US3817731A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE1949275C3 (de) | 1978-05-18 |
| FR2019824B1 (cg-RX-API-DMAC7.html) | 1973-10-19 |
| FR2019824A1 (cg-RX-API-DMAC7.html) | 1970-07-10 |
| NL6914795A (cg-RX-API-DMAC7.html) | 1970-04-07 |
| DE1949275A1 (de) | 1970-09-24 |
| DE1949275B2 (de) | 1977-09-01 |
| GB1266524A (cg-RX-API-DMAC7.html) | 1972-03-08 |
| US3817731A (en) | 1974-06-18 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Owner name: NIPPON SELFOC K.K. Effective date: 19841003 |