FI790659A - Direkt upphettad katodkonstruktion - Google Patents
Direkt upphettad katodkonstruktionInfo
- Publication number
- FI790659A FI790659A FI790659A FI790659A FI790659A FI 790659 A FI790659 A FI 790659A FI 790659 A FI790659 A FI 790659A FI 790659 A FI790659 A FI 790659A FI 790659 A FI790659 A FI 790659A
- Authority
- FI
- Finland
- Prior art keywords
- cathodic
- directive
- updated
- construction
- updated cathodic
- Prior art date
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
- H01J1/15—Cathodes heated directly by an electric current
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5292678A JPS54144170A (en) | 1978-05-02 | 1978-05-02 | Cathode constituent of direct heating type |
Publications (1)
Publication Number | Publication Date |
---|---|
FI790659A true FI790659A (fi) | 1979-11-03 |
Family
ID=12928431
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI790659A FI790659A (fi) | 1978-05-02 | 1979-02-27 | Direkt upphettad katodkonstruktion |
Country Status (6)
Country | Link |
---|---|
US (1) | US4251746A (fi) |
JP (1) | JPS54144170A (fi) |
DE (1) | DE2907766A1 (fi) |
FI (1) | FI790659A (fi) |
GB (1) | GB2020891B (fi) |
NL (1) | NL7901541A (fi) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8100928A (nl) * | 1981-02-26 | 1982-09-16 | Philips Nv | Oxydkathode. |
DE3534793A1 (de) * | 1985-09-30 | 1987-04-02 | Leybold Heraeus Gmbh & Co Kg | Einspannvorrichtung fuer spiralfoermige drahtkatoden |
US4789807A (en) * | 1987-08-31 | 1988-12-06 | Rca Licensing Corp. | Electron gun assembly having a reinforced heater tab |
US4931691A (en) * | 1988-08-30 | 1990-06-05 | Rca Licensing Corp. | Electron gun assembly having a reinforced heater tab with locating means |
AU5937196A (en) * | 1995-06-05 | 1996-12-24 | Ceradyne, Inc. | Directly heated dispenser cathode and method of manufacture therefor |
WO2001043157A1 (en) * | 1999-12-13 | 2001-06-14 | Semequip, Inc. | Ion implantation ion source, system and method |
US7791047B2 (en) * | 2003-12-12 | 2010-09-07 | Semequip, Inc. | Method and apparatus for extracting ions from an ion source for use in ion implantation |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2677778A (en) * | 1952-03-31 | 1954-05-04 | Atomic Energy Commission | Linear cathode |
US3263115A (en) * | 1962-05-23 | 1966-07-26 | Gen Electric | Dispenser cathode and method of manufacture |
US3541382A (en) * | 1967-12-11 | 1970-11-17 | Tokyo Shibaura Electric Co | Direct heated cathode member for an electron tube |
JPS536560A (en) * | 1976-07-07 | 1978-01-21 | Hitachi Ltd | Manufacture of cathode for direct heating type cathode ray tube |
US4082938A (en) * | 1977-05-10 | 1978-04-04 | Igor Vladimirovich Shergov | Thermionic heater cathode assembly of electron-beam gun |
US4150318A (en) * | 1978-04-17 | 1979-04-17 | Gte Sylvania Incorporated | Low mass, indirectly heated, fast warm-up heater-cathode assembly |
-
1978
- 1978-05-02 JP JP5292678A patent/JPS54144170A/ja active Pending
-
1979
- 1979-02-27 GB GB7906951A patent/GB2020891B/en not_active Expired
- 1979-02-27 US US06/015,620 patent/US4251746A/en not_active Expired - Lifetime
- 1979-02-27 FI FI790659A patent/FI790659A/fi not_active Application Discontinuation
- 1979-02-27 NL NL7901541A patent/NL7901541A/xx not_active Application Discontinuation
- 1979-02-28 DE DE19792907766 patent/DE2907766A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
US4251746A (en) | 1981-02-17 |
NL7901541A (nl) | 1979-11-06 |
DE2907766A1 (de) | 1979-11-08 |
GB2020891A (en) | 1979-11-21 |
JPS54144170A (en) | 1979-11-10 |
GB2020891B (en) | 1982-04-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD | Application lapsed |
Owner name: HITACHI LTD |