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GB2052847B - Protection of the cathode of an electron beam tube from ion bombardment - Google Patents

Protection of the cathode of an electron beam tube from ion bombardment

Info

Publication number
GB2052847B
GB2052847B GB8017043A GB8017043A GB2052847B GB 2052847 B GB2052847 B GB 2052847B GB 8017043 A GB8017043 A GB 8017043A GB 8017043 A GB8017043 A GB 8017043A GB 2052847 B GB2052847 B GB 2052847B
Authority
GB
United Kingdom
Prior art keywords
cathode
protection
electron beam
ion bombardment
beam tube
Prior art date
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
Application number
GB8017043A
Other versions
GB2052847A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jenoptik AG
Original Assignee
Jenoptik Jena GmbH
Carl Zeiss Jena GmbH
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.)
Filing date
Publication date
Application filed by Jenoptik Jena GmbH, Carl Zeiss Jena GmbH filed Critical Jenoptik Jena GmbH
Publication of GB2052847A publication Critical patent/GB2052847A/en
Application granted granted Critical
Publication of GB2052847B publication Critical patent/GB2052847B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J29/84—Traps for removing or diverting unwanted particles, e.g. negative ions, fringing electrons; Arrangements for velocity or mass selection
    • 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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/48—Electron guns
    • H01J29/484—Eliminating deleterious effects due to thermal effects, electrical or magnetic fields; Preventing unwanted emission
GB8017043A 1979-05-28 1980-05-23 Protection of the cathode of an electron beam tube from ion bombardment Expired GB2052847B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD21316279A DD143187A1 (en) 1979-05-28 1979-05-28 PROTECTION OF A CATODE IN ELECTRON BEAM INSTRUMENTS

Publications (2)

Publication Number Publication Date
GB2052847A GB2052847A (en) 1981-01-28
GB2052847B true GB2052847B (en) 1983-01-12

Family

ID=5518347

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8017043A Expired GB2052847B (en) 1979-05-28 1980-05-23 Protection of the cathode of an electron beam tube from ion bombardment

Country Status (4)

Country Link
JP (1) JPS6019620B2 (en)
DD (1) DD143187A1 (en)
DE (1) DE3019684A1 (en)
GB (1) GB2052847B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8600098A (en) * 1986-01-20 1987-08-17 Philips Nv CATHODE JET TUBE WITH ION TRAP.
DE4430534A1 (en) * 1994-08-27 1996-04-11 Hell Ag Linotype Electron beam generator
KR100447659B1 (en) * 2002-10-24 2004-09-07 엘지.필립스디스플레이(주) A Electron Gun for Color CRT
US8129910B2 (en) * 2009-06-23 2012-03-06 L-3 Communications Corporation Magnetically insulated cold-cathode electron gun

Also Published As

Publication number Publication date
JPS6019620B2 (en) 1985-05-17
DD143187A1 (en) 1980-08-06
JPS55161327A (en) 1980-12-15
GB2052847A (en) 1981-01-28
DE3019684A1 (en) 1980-12-04

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee