FR2182619B1 - - Google Patents
Info
- Publication number
- FR2182619B1 FR2182619B1 FR7210660A FR7210660A FR2182619B1 FR 2182619 B1 FR2182619 B1 FR 2182619B1 FR 7210660 A FR7210660 A FR 7210660A FR 7210660 A FR7210660 A FR 7210660A FR 2182619 B1 FR2182619 B1 FR 2182619B1
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/12—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/022—Manufacture of electrodes or electrode systems of cold cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2201/00—Electrodes common to discharge tubes
- H01J2201/32—Secondary emission electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2201/00—Electrodes common to discharge tubes
- H01J2201/34—Photoemissive electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Cold Cathode And The Manufacture (AREA)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7210660A FR2182619A1 (en) | 1972-03-27 | 1972-03-27 | Cold cathode for electro emission devices - by lowering the extraction potential using a diffused dopant |
CA166,654A CA1005151A (en) | 1972-03-27 | 1973-03-21 | Method of manufacturing a non-thermally emitting electrode |
AU53638/73A AU5363873A (en) | 1972-03-27 | 1973-03-22 | Emitting electrode for an electric discharge tube |
GB1409473A GB1413552A (en) | 1972-03-27 | 1973-03-23 | Non-thermally emissive electrodes |
IT6785173A IT984431B (it) | 1972-03-27 | 1973-03-23 | Procedimento per la fabbricazione di un elettrodo emettitore non ter mico e tubo a scarica elettrica com prendente tale elettrodo |
NL7304069A NL7304069A (xx) | 1972-03-27 | 1973-03-23 | |
JP3441773A JPS5721823B2 (xx) | 1972-03-27 | 1973-03-26 | |
US05/538,326 US3960421A (en) | 1972-03-27 | 1975-01-03 | Method of manufacturing a non-thermally emitting electrode for an electric discharge tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7210660A FR2182619A1 (en) | 1972-03-27 | 1972-03-27 | Cold cathode for electro emission devices - by lowering the extraction potential using a diffused dopant |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2182619A1 FR2182619A1 (en) | 1973-12-14 |
FR2182619B1 true FR2182619B1 (xx) | 1974-12-13 |
Family
ID=9095857
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7210660A Granted FR2182619A1 (en) | 1972-03-27 | 1972-03-27 | Cold cathode for electro emission devices - by lowering the extraction potential using a diffused dopant |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR2182619A1 (xx) |
IT (1) | IT984431B (xx) |
-
1972
- 1972-03-27 FR FR7210660A patent/FR2182619A1/fr active Granted
-
1973
- 1973-03-23 IT IT6785173A patent/IT984431B/it active
Also Published As
Publication number | Publication date |
---|---|
IT984431B (it) | 1974-11-20 |
FR2182619A1 (en) | 1973-12-14 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
CL | Concession to grant licenses | ||
ST | Notification of lapse |