IT1122259B - Dispositivo di cannone elettronico grigliato a polarizzazione nulla - Google Patents

Dispositivo di cannone elettronico grigliato a polarizzazione nulla

Info

Publication number: IT1122259B
Authority: IT; Italy
Prior art keywords: polarization; device grid; cannon device; electronic cannon; electronic
Prior art date: 1978-07-24

Application number

IT24554/79A

Other languages

English (en)

Other versions

IT7924554A0 (it

Original Assignee

Varian Associates

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.)

1978-07-24

Filing date

1979-07-23

Publication date

1986-04-23

1979-07-23 Application filed by Varian Associates filed Critical Varian Associates

1979-07-23 Publication of IT7924554A0 publication Critical patent/IT7924554A0/it

1986-04-23 Application granted granted Critical

1986-04-23 Publication of IT1122259B publication Critical patent/IT1122259B/it

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/02—Electrodes; Magnetic control means; Screens
- H01J23/06—Electron or ion guns
- H01J23/065—Electron or ion guns producing a solid cylindrical beam
- 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
- H01J1/46—Control electrodes, e.g. grid; Auxiliary electrodes
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J3/00—Details of electron-optical or ion-optical arrangements or of ion traps common to two or more basic types of discharge tubes or lamps
- H01J3/02—Electron guns
- H01J3/029—Schematic arrangements for beam forming

IT24554/79A 1978-07-24 1979-07-23 Dispositivo di cannone elettronico grigliato a polarizzazione nulla IT1122259B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US05/927,087 US4227116A (en)	1978-07-24	1978-07-24	Zero-bias gridded gun

Publications (2)

Publication Number	Publication Date
IT7924554A0 IT7924554A0 (it)	1979-07-23
IT1122259B true IT1122259B (it)	1986-04-23

Family

ID=25454156

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT24554/79A IT1122259B (it)	1978-07-24	1979-07-23	Dispositivo di cannone elettronico grigliato a polarizzazione nulla

Country Status (8)

Country	Link
US (1)	US4227116A (it)
EP (1)	EP0018402B1 (it)
JP (1)	JPS6318297B2 (it)
CA (1)	CA1142258A (it)
DE (1)	DE2967682D1 (it)
IL (1)	IL57880A (it)
IT (1)	IT1122259B (it)
WO (1)	WO1980000282A1 (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3205027A1 (de) *	1982-02-12	1983-08-25	Siemens AG, 1000 Berlin und 8000 München	Integriertes korpuskularstrahlerzeugendes system
US4480210A (en) *	1982-05-12	1984-10-30	Varian Associates, Inc.	Gridded electron power tube
WO1985000074A1 (en) *	1983-06-16	1985-01-03	Hughes Aircraft Company	Grid structure for certain plural mode electron guns
US4680500A (en) *	1986-03-06	1987-07-14	The United States Of America As Represented By The Secretary Of The Air Force	Integral grid/cathode for vacuum tubes
US5317233A (en) *	1990-04-13	1994-05-31	Varian Associates, Inc.	Vacuum tube including grid-cathode assembly with resonant slow-wave structure
GB9712243D0 (en) *	1997-06-13	1997-08-13	Eev Ltd	Grids
FR2775118B1 (fr) *	1998-02-13	2000-05-05	Thomson Tubes Electroniques	Grille pour tube electronique a faisceau axial a performances ameliorees
JP7488039B2 (ja) *	2019-10-28	2024-05-21	日清紡マイクロデバイス株式会社	電子銃および電子銃の製造方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3183402A (en) *	1956-02-24	1965-05-11	Varian Associates	Charged particle flow control apparatus with apertured cathode
US2975317A (en) *	1959-04-07	1961-03-14	Univ California	Beam control device
FR2030750A6 (it) *	1967-07-03	1970-11-13	Varian Associates
US3843902A (en) *	1972-08-24	1974-10-22	Varian Associates	Gridded convergent flow electron gun
US4096406A (en) *	1976-05-10	1978-06-20	Varian Associates, Inc.	Thermionic electron source with bonded control grid
GB1555800A (en) *	1976-11-04	1979-11-14	Emi Varian Ltd	Electron emitters

1978
- 1978-07-24 US US05/927,087 patent/US4227116A/en not_active Expired - Lifetime
1979
- 1979-06-27 JP JP54501150A patent/JPS6318297B2/ja not_active Expired
- 1979-06-27 WO PCT/US1979/000456 patent/WO1980000282A1/en unknown
- 1979-06-27 DE DE7979900835T patent/DE2967682D1/de not_active Expired
- 1979-07-23 CA CA000332329A patent/CA1142258A/en not_active Expired
- 1979-07-23 IT IT24554/79A patent/IT1122259B/it active
- 1979-07-24 IL IL57880A patent/IL57880A/xx not_active IP Right Cessation
1980
- 1980-02-25 EP EP79900835A patent/EP0018402B1/en not_active Expired

Also Published As

Publication number	Publication date
EP0018402A1 (en)	1980-11-12
CA1142258A (en)	1983-03-01
WO1980000282A1 (en)	1980-02-21
EP0018402B1 (en)	1988-09-14
IT7924554A0 (it)	1979-07-23
JPS55500523A (it)	1980-08-14
IL57880A0 (en)	1979-11-30
IL57880A (en)	1982-01-31
DE2967682D1 (en)	1988-10-20
EP0018402A4 (en)	1980-07-08
JPS6318297B2 (it)	1988-04-18
US4227116A (en)	1980-10-07

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Legal Events

Date	Code	Title	Description
1999-10-27	TA	Fee payment date (situation as of event date), data collected since 19931001	Effective date: 19960729