DE2964951D1 - Thermal radiation heating cathode structure - Google Patents
Thermal radiation heating cathode structureInfo
- Publication number
- DE2964951D1 DE2964951D1 DE7979200341T DE2964951T DE2964951D1 DE 2964951 D1 DE2964951 D1 DE 2964951D1 DE 7979200341 T DE7979200341 T DE 7979200341T DE 2964951 T DE2964951 T DE 2964951T DE 2964951 D1 DE2964951 D1 DE 2964951D1
- Authority
- DE
- Germany
- Prior art keywords
- cathode
- disc
- cathode structure
- thermal radiation
- radiation heating
- 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
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/04—Cathodes
Landscapes
- Electrodes For Cathode-Ray Tubes (AREA)
- Electron Sources, Ion Sources (AREA)
- Furnace Details (AREA)
- Gas-Filled Discharge Tubes (AREA)
Abstract
1. Cathode structure for radiation-heated cathodes of an cathode ray tube, especially a picture tube, in which the cathode consists primarily of a disc carrying the emitting layer which is connected with a ring (4) via holding elements (3) which are arranged radially to the cathode disc, form angles with each other and project away from the cathode disc with their ends, characterized in this, that the holding elements are insulating rods which are arranged displaceably along their axes and, in at least one plane, parallel to the cathode disc.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE7979200341T DE2964951D1 (en) | 1978-08-12 | 1979-06-26 | Thermal radiation heating cathode structure |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782835489 DE2835489A1 (en) | 1978-08-12 | 1978-08-12 | CATHODE STRUCTURE FOR RADIANT HEATED CATHODE |
DE7979200341T DE2964951D1 (en) | 1978-08-12 | 1979-06-26 | Thermal radiation heating cathode structure |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2964951D1 true DE2964951D1 (en) | 1983-04-07 |
Family
ID=6046958
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19782835489 Withdrawn DE2835489A1 (en) | 1978-08-12 | 1978-08-12 | CATHODE STRUCTURE FOR RADIANT HEATED CATHODE |
DE7979200341T Expired DE2964951D1 (en) | 1978-08-12 | 1979-06-26 | Thermal radiation heating cathode structure |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19782835489 Withdrawn DE2835489A1 (en) | 1978-08-12 | 1978-08-12 | CATHODE STRUCTURE FOR RADIANT HEATED CATHODE |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0008137B1 (en) |
AT (1) | ATE2705T1 (en) |
DE (2) | DE2835489A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19800773C1 (en) * | 1998-01-12 | 1999-07-29 | Siemens Ag | Indirectly heated cathode with long life especially for X=ray tubes for examination of materials |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1800953A1 (en) * | 1968-08-15 | 1970-02-26 | Siemens Ag | Indirectly heated reserve cathode |
NL7003279A (en) * | 1970-03-07 | 1971-09-09 | ||
DE2442510A1 (en) * | 1974-09-05 | 1976-03-18 | Licentia Gmbh | Indirectly heated cathode for electron tubes - has heating filament in shell-shaped housing of elliptical shell sections |
-
1978
- 1978-08-12 DE DE19782835489 patent/DE2835489A1/en not_active Withdrawn
-
1979
- 1979-06-26 EP EP79200341A patent/EP0008137B1/en not_active Expired
- 1979-06-26 AT AT79200341T patent/ATE2705T1/en not_active IP Right Cessation
- 1979-06-26 DE DE7979200341T patent/DE2964951D1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2835489A1 (en) | 1980-02-21 |
EP0008137B1 (en) | 1983-03-02 |
ATE2705T1 (en) | 1983-03-15 |
EP0008137A1 (en) | 1980-02-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8339 | Ceased/non-payment of the annual fee |