GB416616A - Improvements in electric discharge tubes - Google Patents
Improvements in electric discharge tubesInfo
- Publication number
- GB416616A GB416616A GB29140/33A GB2914033A GB416616A GB 416616 A GB416616 A GB 416616A GB 29140/33 A GB29140/33 A GB 29140/33A GB 2914033 A GB2914033 A GB 2914033A GB 416616 A GB416616 A GB 416616A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fischer
- glass
- tubes
- electric discharge
- cathode
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/38—Devices for influencing the colour or wavelength of the light
- H01J61/42—Devices for influencing the colour or wavelength of the light by transforming the wavelength of the light by luminescence
-
- 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
- C03C4/00—Compositions for glass with special properties
- C03C4/18—Compositions for glass with special properties for ion-sensitive glass
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
416,616. Discharge apparatus. FISCHER, M., FISCHER, M., and FISCHER, H., (trading as GLASWERK G. FISCHER), 32, Langewiesenerstrasse, Ilmenau, Thuringia, Germany. Oct. 20, 1933, No. 29140. Convention date, May 20. [Class 39 (i).] A glass which becomes strongly luminescent, when subjected to cathode radiation, is made by reducing the iron content below a very small amount which depends on the nature of the metallic compound that is used to give a characteristic colour to the luminescence. Thus a glass containing silver is luminescent if the content of iron, calculated as Fe2O3, does not exceed 0.25 per cent. The output of light from an electric discharge tube made from such a glass is stated to be increased considerably, and the colour of the emitted light can be influenced. The glass is also suitable for the envelopes of Crookes' tubes, R÷ntgen tubes, and cathode-ray tubes.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE416616X | 1933-05-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB416616A true GB416616A (en) | 1934-09-18 |
Family
ID=6448600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29140/33A Expired GB416616A (en) | 1933-05-20 | 1933-10-20 | Improvements in electric discharge tubes |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR762348A (en) |
| GB (1) | GB416616A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2521160A1 (en) * | 2009-12-29 | 2012-11-07 | Ocean's King Lighting Science&Technology Co., Ltd. | Field emission device for emitting white light |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE746459C (en) * | 1938-10-05 | 1944-06-15 | Glaswerk Gust Fischer | Method for increasing the luminescence of uranium glass and electric discharge lamp with a wall made of such glass |
-
1933
- 1933-10-13 FR FR762348D patent/FR762348A/en not_active Expired
- 1933-10-20 GB GB29140/33A patent/GB416616A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2521160A1 (en) * | 2009-12-29 | 2012-11-07 | Ocean's King Lighting Science&Technology Co., Ltd. | Field emission device for emitting white light |
| EP2521160A4 (en) * | 2009-12-29 | 2013-07-10 | Oceans King Lighting Science | Field emission device for emitting white light |
Also Published As
| Publication number | Publication date |
|---|---|
| FR762348A (en) | 1934-04-09 |
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