NL9100289A - Afgeefkathode. - Google Patents
Afgeefkathode. Download PDFInfo
- Publication number
- NL9100289A NL9100289A NL9100289A NL9100289A NL9100289A NL 9100289 A NL9100289 A NL 9100289A NL 9100289 A NL9100289 A NL 9100289A NL 9100289 A NL9100289 A NL 9100289A NL 9100289 A NL9100289 A NL 9100289A
- Authority
- NL
- Netherlands
- Prior art keywords
- electron
- emitting material
- base body
- cathode
- metal base
- 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
- H01J1/14—Solid thermionic cathodes characterised by the material
-
- 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
- H01J1/28—Dispenser-type cathodes, e.g. L-cathode
-
- 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
- Solid Thermionic Cathode (AREA)
- Gas-Filled Discharge Tubes (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR890016316 | 1989-11-10 | ||
KR1019890016316A KR920001335B1 (ko) | 1989-11-10 | 1989-11-10 | 디스펜서 음극 |
Publications (1)
Publication Number | Publication Date |
---|---|
NL9100289A true NL9100289A (nl) | 1992-09-16 |
Family
ID=19291511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL9100289A NL9100289A (nl) | 1989-11-10 | 1991-02-19 | Afgeefkathode. |
Country Status (6)
Country | Link |
---|---|
US (1) | US5115164A (ko) |
JP (1) | JPH03173037A (ko) |
KR (1) | KR920001335B1 (ko) |
FR (1) | FR2673037B1 (ko) |
GB (1) | GB2238655B (ko) |
NL (1) | NL9100289A (ko) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR920001335B1 (ko) * | 1989-11-10 | 1992-02-10 | 삼성전관 주식회사 | 디스펜서 음극 |
KR930003229Y1 (ko) * | 1991-04-30 | 1993-06-03 | 주식회사 금성사 | 방열형 음극선관용 전자총의 히터 구조 |
DE4206909A1 (de) * | 1992-03-05 | 1993-09-09 | Philips Patentverwaltung | Thermionisch emittierendes kathodenelement |
DE4207220A1 (de) * | 1992-03-07 | 1993-09-09 | Philips Patentverwaltung | Festkoerperelement fuer eine thermionische kathode |
US5407633A (en) * | 1994-03-15 | 1995-04-18 | U.S. Philips Corporation | Method of manufacturing a dispenser cathode |
US20030025435A1 (en) * | 1999-11-24 | 2003-02-06 | Vancil Bernard K. | Reservoir dispenser cathode and method of manufacture |
ITMI20052113A1 (it) * | 2005-11-07 | 2007-05-08 | Getters Spa | Catodi a bassa funzione lavoro per lampade e metodi per la loro produzione |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
HU143979A (ko) * | 1953-11-05 | |||
GB797842A (en) * | 1955-08-09 | 1958-07-09 | Gen Electric Co Ltd | Improvements in or relating to the manufacture of electric discharge devices |
US3159461A (en) * | 1958-10-20 | 1964-12-01 | Bell Telephone Labor Inc | Thermionic cathode |
DE2059572A1 (de) * | 1970-12-03 | 1972-06-08 | Philips Patentverwaltung | Verfahren zur Herstellung von kalten Kathoden fuer Gasentladungsroehren |
US3699378A (en) * | 1971-06-30 | 1972-10-17 | Gte Sylvania Inc | Electron discharge device thermionic cathode having reduced operating temperature and method of making same |
US4165473A (en) * | 1976-06-21 | 1979-08-21 | Varian Associates, Inc. | Electron tube with dispenser cathode |
SU767857A1 (ru) * | 1978-05-22 | 1980-09-30 | Московский ордена Ленина и ордена Трудового Красного Знамени химико-технологический институт им. Д.И.Менделеева | Эмиссионный материал дл катодов |
US4369392A (en) * | 1979-09-20 | 1983-01-18 | Matsushita Electric Industrial Co., Ltd. | Oxide-coated cathode and method of producing the same |
US4823044A (en) * | 1988-02-10 | 1989-04-18 | Ceradyne, Inc. | Dispenser cathode and method of manufacture therefor |
KR920001335B1 (ko) * | 1989-11-10 | 1992-02-10 | 삼성전관 주식회사 | 디스펜서 음극 |
-
1989
- 1989-11-10 KR KR1019890016316A patent/KR920001335B1/ko not_active IP Right Cessation
-
1990
- 1990-11-07 US US07/611,688 patent/US5115164A/en not_active Expired - Fee Related
- 1990-11-09 GB GB9024437A patent/GB2238655B/en not_active Expired - Fee Related
- 1990-11-10 JP JP2305945A patent/JPH03173037A/ja active Pending
-
1991
- 1991-02-19 NL NL9100289A patent/NL9100289A/nl not_active Application Discontinuation
- 1991-02-20 FR FR9102023A patent/FR2673037B1/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2673037A1 (fr) | 1992-08-21 |
KR910010578A (ko) | 1991-06-29 |
GB2238655A (en) | 1991-06-05 |
KR920001335B1 (ko) | 1992-02-10 |
JPH03173037A (ja) | 1991-07-26 |
GB2238655B (en) | 1994-02-02 |
US5115164A (en) | 1992-05-19 |
FR2673037B1 (fr) | 1993-12-10 |
GB9024437D0 (en) | 1991-01-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A1B | A search report has been drawn up | ||
BC | A request for examination has been filed | ||
BV | The patent application has lapsed |