GB1349128A - Indirectly heated cathodes - Google Patents
Indirectly heated cathodesInfo
- Publication number
- GB1349128A GB1349128A GB5738972A GB5738972A GB1349128A GB 1349128 A GB1349128 A GB 1349128A GB 5738972 A GB5738972 A GB 5738972A GB 5738972 A GB5738972 A GB 5738972A GB 1349128 A GB1349128 A GB 1349128A
- Authority
- GB
- United Kingdom
- Prior art keywords
- indirectly heated
- heated cathodes
- cathodes
- indirectly
- heated
- 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
- 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
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
- H01J1/26—Supports for the emissive material
-
- 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
- H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Solid Thermionic Cathode (AREA)
- Powder Metallurgy (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7117226A NL7117226A (en) | 1971-12-16 | 1971-12-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1349128A true GB1349128A (en) | 1974-03-27 |
Family
ID=19814707
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5738972A Expired GB1349128A (en) | 1971-12-16 | 1972-12-13 | Indirectly heated cathodes |
Country Status (8)
Country | Link |
---|---|
US (1) | US3823453A (en) |
JP (1) | JPS5228631B2 (en) |
BE (1) | BE792763A (en) |
CA (1) | CA956694A (en) |
DE (1) | DE2258160B2 (en) |
FR (1) | FR2163606B1 (en) |
GB (1) | GB1349128A (en) |
NL (1) | NL7117226A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2174237A (en) * | 1985-03-18 | 1986-10-29 | Hitachi Ltd | Indirectly heated cathode manufacture |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5739010B2 (en) * | 1973-11-02 | 1982-08-19 | ||
US3919751A (en) * | 1974-02-08 | 1975-11-18 | Gte Sylvania Inc | Method of making fast warm up picture tube cathode cap having high heat emissivity surface on the interior thereof |
JPS50146466U (en) * | 1974-05-20 | 1975-12-04 | ||
JPS6016059B2 (en) * | 1977-08-11 | 1985-04-23 | ソニー株式会社 | Cathode ray tube manufacturing method |
NL8100928A (en) * | 1981-02-26 | 1982-09-16 | Philips Nv | OXYD CATHODE. |
US4781640A (en) * | 1985-01-24 | 1988-11-01 | Varian Associates, Inc. | Basket electrode shaping |
KR960007663Y1 (en) * | 1990-12-29 | 1996-09-06 | Lg Electronics Inc | Cathode structure |
TW259878B (en) * | 1993-03-17 | 1995-10-11 | Toshiba Co Ltd | |
CN101075515B (en) * | 2007-06-28 | 2011-09-07 | 北京工业大学 | High-curren density heterogeneous beam electron source |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1897933A (en) * | 1928-08-02 | 1933-02-14 | Peoples Gas By Products Corp | Electrode for electron discharge tubes and method of forming the same |
US2726308A (en) * | 1952-02-13 | 1955-12-06 | Cinamon Lionel | Welding method |
US2970204A (en) * | 1958-02-27 | 1961-01-31 | Piceu | Electric welding method and composition |
US2978606A (en) * | 1959-01-02 | 1961-04-04 | Sylvania Electric Prod | Electron discharge device |
US3535757A (en) * | 1968-03-22 | 1970-10-27 | Rca Corp | Method for making cathode assembly for electron tube |
-
0
- BE BE792763D patent/BE792763A/en unknown
-
1971
- 1971-12-16 NL NL7117226A patent/NL7117226A/xx unknown
-
1972
- 1972-11-28 DE DE19722258160 patent/DE2258160B2/en active Granted
- 1972-11-29 US US00310347A patent/US3823453A/en not_active Expired - Lifetime
- 1972-12-08 CA CA158,798A patent/CA956694A/en not_active Expired
- 1972-12-13 GB GB5738972A patent/GB1349128A/en not_active Expired
- 1972-12-13 JP JP47124419A patent/JPS5228631B2/ja not_active Expired
- 1972-12-14 FR FR7244504A patent/FR2163606B1/fr not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2174237A (en) * | 1985-03-18 | 1986-10-29 | Hitachi Ltd | Indirectly heated cathode manufacture |
GB2174237B (en) * | 1985-03-18 | 1989-10-04 | Hitachi Ltd | A manufacturing method of indirectly heated cathode |
US5102363A (en) * | 1985-03-18 | 1992-04-07 | Hitachi, Ltd. | Manufacturing method of indirectly heated cathode |
Also Published As
Publication number | Publication date |
---|---|
BE792763A (en) | 1973-06-14 |
JPS5228631B2 (en) | 1977-07-27 |
DE2258160B2 (en) | 1977-06-02 |
DE2258160A1 (en) | 1973-06-20 |
CA956694A (en) | 1974-10-22 |
NL7117226A (en) | 1973-06-19 |
FR2163606B1 (en) | 1977-04-08 |
JPS4866968A (en) | 1973-09-13 |
US3823453A (en) | 1974-07-16 |
FR2163606A1 (en) | 1973-07-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |