FR2462018B1 - - Google Patents
Info
- Publication number
- FR2462018B1 FR2462018B1 FR8015641A FR8015641A FR2462018B1 FR 2462018 B1 FR2462018 B1 FR 2462018B1 FR 8015641 A FR8015641 A FR 8015641A FR 8015641 A FR8015641 A FR 8015641A FR 2462018 B1 FR2462018 B1 FR 2462018B1
- 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
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7905542A NL7905542A (nl) | 1979-07-17 | 1979-07-17 | Naleveringskathode. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2462018A1 FR2462018A1 (fr) | 1981-02-06 |
FR2462018B1 true FR2462018B1 (fr) | 1983-05-13 |
Family
ID=19833550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8015641A Granted FR2462018A1 (fr) | 1979-07-17 | 1980-07-15 | Cathode a reserve |
Country Status (7)
Country | Link |
---|---|
US (1) | US4350920A (fr) |
JP (1) | JPS5615526A (fr) |
CA (1) | CA1155906A (fr) |
DE (1) | DE3026717A1 (fr) |
FR (1) | FR2462018A1 (fr) |
GB (1) | GB2056164B (fr) |
NL (1) | NL7905542A (fr) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58154131A (ja) * | 1982-03-10 | 1983-09-13 | Hitachi Ltd | 含浸形陰極 |
NL8201371A (nl) * | 1982-04-01 | 1983-11-01 | Philips Nv | Werkwijzen voor het vervaardigen van een naleveringskathode en naleveringskathode vervaardigd volgens deze werkwijzen. |
DE3334971A1 (de) * | 1983-09-27 | 1985-04-18 | Siemens AG, 1000 Berlin und 8000 München | Vorratskathode, insbesondere metall-kapillar-kathode |
DE3336489A1 (de) * | 1983-10-07 | 1985-04-25 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Indirekt geheizte vorratskathode |
DE3418974C2 (de) * | 1984-05-22 | 1995-07-13 | Licentia Gmbh | Vorratskathode |
NL8403031A (nl) * | 1984-10-05 | 1986-05-01 | Philips Nv | Werkwijze voor het vervaardigen van een scandaatnaleveringskathode en scandaatnaleveringskathode vervaardigd volgens deze werkwijze. |
NL8403032A (nl) * | 1984-10-05 | 1986-05-01 | Philips Nv | Werkwijze voor het vervaardigen van een scandaatnaleveringskathode, naleveringskathode vervaardigd met deze werkwijze. |
GB2173943A (en) * | 1985-04-18 | 1986-10-22 | Noblelight Limited | Improvements in and relating to cathodes |
KR900007751B1 (ko) * | 1985-05-25 | 1990-10-19 | 미쯔비시덴끼 가부시기가이샤 | 전자관 음극 및 그 제조방법 |
CA1270890A (fr) * | 1985-07-19 | 1990-06-26 | Keiji Watanabe | Cathode de tube electronique |
US4897574A (en) * | 1986-10-07 | 1990-01-30 | Mitsubishi Denki Kabushiki Kaisha | Hot cathode in wire form |
NL8702727A (nl) * | 1987-11-16 | 1989-06-16 | Philips Nv | Scandaatkathode. |
KR910009660B1 (ko) * | 1988-02-23 | 1991-11-25 | 미쓰비시전기 주식회사 | 전자관용 산화물피복음극 |
NL8902793A (nl) * | 1989-11-13 | 1991-06-03 | Philips Nv | Scandaatkathode. |
US5041757A (en) * | 1990-12-21 | 1991-08-20 | Hughes Aircraft Company | Sputtered scandate coatings for dispenser cathodes and methods for making same |
US5407633A (en) * | 1994-03-15 | 1995-04-18 | U.S. Philips Corporation | Method of manufacturing a dispenser cathode |
JPH0850849A (ja) * | 1994-05-31 | 1996-02-20 | Nec Kansai Ltd | 陰極部材およびそれを用いた電子管 |
KR0161381B1 (ko) * | 1994-12-28 | 1998-12-01 | 윤종용 | 직열형 음극 구조체 |
KR100195167B1 (ko) * | 1994-12-29 | 1999-06-15 | 손욱 | 직열형 음극 구조체 및 그 제조방법 |
US7215070B2 (en) | 2003-02-14 | 2007-05-08 | Mapper Lithography Ip B.V. | System, method and apparatus for multi-beam lithography including a dispenser cathode for homogeneous electron emission |
CN100433230C (zh) * | 2006-07-19 | 2008-11-12 | 北京工业大学 | 压制型含钪扩散阴极的制备方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL246331A (fr) * | 1951-07-11 | |||
DE952543C (de) * | 1954-02-27 | 1956-11-15 | Siemens Ag | Indirekt geheitzte Kathode fuer elektrische Entladungsgefaesse |
US3358178A (en) * | 1964-08-05 | 1967-12-12 | Figner Avraam Iljich | Metal-porous body having pores filled with barium scandate |
NL6602973A (fr) * | 1966-03-08 | 1967-09-11 | ||
US3719856A (en) * | 1971-05-19 | 1973-03-06 | O Koppius | Impregnants for dispenser cathodes |
US3922428A (en) * | 1972-02-04 | 1975-11-25 | Spectra Mat Inc | Thermionic cathode comprising mixture of barium oxide, calcium oxide and samarium oxide |
NL165880C (nl) * | 1975-02-21 | 1981-05-15 | Philips Nv | Naleveringskathode. |
NL7608642A (nl) * | 1976-08-04 | 1978-02-07 | Philips Nv | Werkwijze voor de vervaardiging van een voor- raadkathode en voorraadkathode vervaardigd volgens die werkwijze. |
-
1979
- 1979-07-17 NL NL7905542A patent/NL7905542A/nl not_active Application Discontinuation
-
1980
- 1980-07-03 US US06/165,893 patent/US4350920A/en not_active Expired - Lifetime
- 1980-07-10 CA CA000355927A patent/CA1155906A/fr not_active Expired
- 1980-07-14 GB GB8022961A patent/GB2056164B/en not_active Expired
- 1980-07-14 JP JP9513780A patent/JPS5615526A/ja active Granted
- 1980-07-15 DE DE19803026717 patent/DE3026717A1/de not_active Ceased
- 1980-07-15 FR FR8015641A patent/FR2462018A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
CA1155906A (fr) | 1983-10-25 |
GB2056164B (en) | 1983-12-21 |
JPH0139614B2 (fr) | 1989-08-22 |
NL7905542A (nl) | 1981-01-20 |
US4350920A (en) | 1982-09-21 |
DE3026717A1 (de) | 1981-02-12 |
JPS5615526A (en) | 1981-02-14 |
GB2056164A (en) | 1981-03-11 |
FR2462018A1 (fr) | 1981-02-06 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |