FR2298879A1 - Composition de revetement d'oxydes pour cathodes - Google Patents
Composition de revetement d'oxydes pour cathodesInfo
- Publication number
- FR2298879A1 FR2298879A1 FR7502081A FR7502081A FR2298879A1 FR 2298879 A1 FR2298879 A1 FR 2298879A1 FR 7502081 A FR7502081 A FR 7502081A FR 7502081 A FR7502081 A FR 7502081A FR 2298879 A1 FR2298879 A1 FR 2298879A1
- Authority
- FR
- France
- Prior art keywords
- strontium
- barium
- less
- coating material
- contg
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/14—Solid thermionic cathodes characterised by the material
- H01J1/142—Solid thermionic cathodes characterised by the material with alkaline-earth metal oxides, or such oxides used in conjunction with reducing agents, as an emissive material
Landscapes
- Solid Thermionic Cathode (AREA)
- Discharge Lamp (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7502081A FR2298879A1 (fr) | 1975-01-23 | 1975-01-23 | Composition de revetement d'oxydes pour cathodes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7502081A FR2298879A1 (fr) | 1975-01-23 | 1975-01-23 | Composition de revetement d'oxydes pour cathodes |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2298879A1 true FR2298879A1 (fr) | 1976-08-20 |
FR2298879B1 FR2298879B1 (fr) | 1977-10-21 |
Family
ID=9150226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7502081A Granted FR2298879A1 (fr) | 1975-01-23 | 1975-01-23 | Composition de revetement d'oxydes pour cathodes |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2298879A1 (fr) |
-
1975
- 1975-01-23 FR FR7502081A patent/FR2298879A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2298879B1 (fr) | 1977-10-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |