NL7808183A - Kathode voor elektronenemissie. - Google Patents

Kathode voor elektronenemissie.

Info

Publication number: NL7808183A
Authority: NL; Netherlands
Prior art keywords: cathode; electronic emission; emission; electronic
Prior art date: 1977-09-02

Application number

NL7808183A

Other languages

English (en)

Original Assignee

Balzers Hochvakuum

Priority date (The priority date 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 date listed.)

1977-09-02

Filing date

1978-08-03

Publication date

1979-03-06

1978-08-03 Application filed by Balzers Hochvakuum filed Critical Balzers Hochvakuum

1979-03-06 Publication of NL7808183A publication Critical patent/NL7808183A/nl

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
- H01J1/148—Solid thermionic cathodes characterised by the material with compounds having metallic conductive properties, e.g. lanthanum boride, as an emissive 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
- H01J1/15—Cathodes heated directly by an electric current

NL7808183A 1977-09-02 1978-08-03 Kathode voor elektronenemissie. NL7808183A (nl)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH1066577A CH617793A5 (nl)	1977-09-02	1977-09-02

Publications (1)

Publication Number	Publication Date
NL7808183A true NL7808183A (nl)	1979-03-06

Family

ID=4365548

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL7808183A NL7808183A (nl)	1977-09-02	1978-08-03	Kathode voor elektronenemissie.

Country Status (5)

Country	Link
CH (1)	CH617793A5 (nl)
DE (2)	DE7821817U1 (nl)
FR (1)	FR2402297A1 (nl)
GB (1)	GB2003655B (nl)
NL (1)	NL7808183A (nl)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS6023456B2 (ja) *	1978-11-01	1985-06-07	電気化学工業株式会社	熱電子陰極装置
FR2445605A1 (fr) *	1978-12-27	1980-07-25	Thomson Csf	Cathode a chauffage direct et tube electronique haute frequence comportant une telle cathode
DE3120454A1 (de) *	1981-05-22	1982-12-09	geb. Vlasova Margarita Sergeevna Moskva &Ccaron;upina	Feldemissionskatode
JPS57196443A (en) *	1981-05-29	1982-12-02	Denki Kagaku Kogyo Kk	Manufacture of hot cathode
CH672860A5 (nl) *	1986-09-29	1989-12-29	Balzers Hochvakuum
JP6636472B2 (ja) *	2017-02-28	2020-01-29	株式会社日立ハイテクノロジーズ	電子源およびそれを用いた電子線装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1061633A (fr) *	1951-03-28	1954-04-14	Thomson Houston Comp Francaise	Substances à pouvoir émissif élevé
GB1045396A (en) *	1965-07-23	1966-10-12	Standard Telephones Cables Ltd	Thermionic cathodes
GB1210007A (en) *	1968-07-05	1970-10-28	Mullard Ltd	Cathode
US3532923A (en) *	1969-03-17	1970-10-06	Ibm	Pyrolytic graphite support for lanthanum hexaboride cathode emitter
US3803677A (en) *	1972-04-28	1974-04-16	Air Liquide	Method for making cathodes for electron guns
JPS607335B2 (ja) *	1974-11-29	1985-02-23	カナデイアン、パテンツ、アンド、デイベラツプメント、リミテツド	熱電子放射陰極
JPS53128971A (en) *	1977-04-18	1978-11-10	Hitachi Ltd	Manufacture of electron radiation cathode

1977
- 1977-09-02 CH CH1066577A patent/CH617793A5/de not_active IP Right Cessation
1978
- 1978-07-21 DE DE19787821817 patent/DE7821817U1/de not_active Expired
- 1978-07-21 DE DE19782832027 patent/DE2832027C3/de not_active Expired
- 1978-08-02 GB GB7831971A patent/GB2003655B/en not_active Expired
- 1978-08-03 NL NL7808183A patent/NL7808183A/nl not_active Application Discontinuation
- 1978-09-01 FR FR7825256A patent/FR2402297A1/fr active Granted

Also Published As

Publication number	Publication date
DE7821817U1 (de)	1987-06-04
CH617793A5 (nl)	1980-06-13
DE2832027A1 (de)	1979-03-15
FR2402297A1 (fr)	1979-03-30
GB2003655B (en)	1982-05-26
GB2003655A (en)	1979-03-14
DE2832027C3 (de)	1987-05-07
DE2832027B2 (de)	1981-07-09
FR2402297B1 (nl)	1984-02-10

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Legal Events

Date	Code	Title
1979-06-25	BB	A search report has been drawn up
1979-10-25	BC	A request for examination has been filed
1984-04-02	BV	The patent application has lapsed