FR2267987B1 - - Google Patents
Info
- Publication number
- FR2267987B1 FR2267987B1 FR7413706A FR7413706A FR2267987B1 FR 2267987 B1 FR2267987 B1 FR 2267987B1 FR 7413706 A FR7413706 A FR 7413706A FR 7413706 A FR7413706 A FR 7413706A FR 2267987 B1 FR2267987 B1 FR 2267987B1
- Authority
- FR
- France
- 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
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/18—Heating by arc discharge
- H05B7/22—Indirect heating by arc discharge
- H05B7/225—Indirect heating by arc discharge by arc image
-
- 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
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/0128—Manufacture of preforms for drawing fibres or filaments starting from pulverulent glass
- C03B37/01282—Manufacture of preforms for drawing fibres or filaments starting from pulverulent glass by pressing or sintering, e.g. hot-pressing
-
- 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
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
- C03B37/029—Furnaces therefor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/0033—Heating devices using lamps
- H05B3/0038—Heating devices using lamps for industrial applications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2205/00—Fibre drawing or extruding details
- C03B2205/60—Optical fibre draw furnaces
- C03B2205/62—Heating means for drawing
- C03B2205/67—Laser heating
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Light Guides In General And Applications Therefor (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7413706A FR2267987A1 (en) | 1974-04-19 | 1974-04-19 | Drawing optical waveguides - using blank rendered partly translucent to allow heating by focused radiation or by lasers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7413706A FR2267987A1 (en) | 1974-04-19 | 1974-04-19 | Drawing optical waveguides - using blank rendered partly translucent to allow heating by focused radiation or by lasers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2267987A1 FR2267987A1 (en) | 1975-11-14 |
| FR2267987B1 true FR2267987B1 (OSRAM) | 1978-07-07 |
Family
ID=9137869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7413706A Granted FR2267987A1 (en) | 1974-04-19 | 1974-04-19 | Drawing optical waveguides - using blank rendered partly translucent to allow heating by focused radiation or by lasers |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2267987A1 (OSRAM) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2537732A1 (fr) * | 1982-12-10 | 1984-06-15 | Thomson Csf | Dispositif d'echauffement d'une zone annulaire superficielle d'un objet filiforme |
| JP4554085B2 (ja) | 1999-03-23 | 2010-09-29 | ショット アクチエンゲゼルシャフト | ガラスセラミック部材、及び／又はガラス部材を製造する方法 |
| CN1254448C (zh) | 1999-03-23 | 2006-05-03 | 肖特股份公司 | 使用红外辐射均匀加热玻璃和/或玻璃陶瓷的方法和装置 |
| DE10029522B4 (de) * | 2000-06-21 | 2005-12-01 | Schott Ag | Vorrichtung zum homogenen Erwärmen von Gläsern und/oder Glaskeramiken, Verfahren und Verwendungen |
| DE10235389A1 (de) * | 2002-08-02 | 2004-02-19 | Carl Zeiss Jena Gmbh | Anordnung zum Erzeugen eines leuchtenden Feldes |
| US7832234B2 (en) | 2004-06-01 | 2010-11-16 | Schott Ag | Hot formed articles and method and apparatus for hot-forming |
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1974
- 1974-04-19 FR FR7413706A patent/FR2267987A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2267987A1 (en) | 1975-11-14 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |