EP0244826A3 - Multiple beam electron discharge tube having beam convergence and beam-to-beam compression compensation - Google Patents

Multiple beam electron discharge tube having beam convergence and beam-to-beam compression compensation Download PDF

Info

Publication number
EP0244826A3
EP0244826A3 EP87106502A EP87106502A EP0244826A3 EP 0244826 A3 EP0244826 A3 EP 0244826A3 EP 87106502 A EP87106502 A EP 87106502A EP 87106502 A EP87106502 A EP 87106502A EP 0244826 A3 EP0244826 A3 EP 0244826A3
Authority
EP
European Patent Office
Prior art keywords
convergence
tube
beams
discharge tube
producing
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.)
Withdrawn
Application number
EP87106502A
Other languages
German (de)
French (fr)
Other versions
EP0244826A2 (en
Inventor
Conrad J. Odenthal
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.)
Tektronix Inc
Original Assignee
Tektronix Inc
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 Tektronix Inc filed Critical Tektronix Inc
Publication of EP0244826A2 publication Critical patent/EP0244826A2/en
Publication of EP0244826A3 publication Critical patent/EP0244826A3/en
Withdrawn legal-status Critical Current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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/48—Electron guns
    • H01J29/51—Arrangements for controlling convergence of a plurality of beams by means of electric field only
    • 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
    • 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
    • H01J29/50—Electron guns two or more guns in a single vacuum space, e.g. for plural-ray tube
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/48—Electron guns
    • H01J2229/4824—Constructional arrangements of electrodes
    • H01J2229/4827—Electrodes formed on surface of common cylindrical support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/48—Electron guns
    • H01J2229/50—Plurality of guns or beams
    • H01J2229/507—Multi-beam groups, e.g. number of beams greater than number of cathodes

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

The invention concerns a multiple beam electron dis­ charge tube (16) comprising beam-producing means (24) for producing plural beams of electrons directed along a beam axis (26) in the tube (16) toward a display screen (28, 30) posi­ tioned at one end of the tube (16); deflection means (32) for deflecting the electron beams relative to the beam axis (26) to produce an image on the display screen; convergence means positioned between the beam-producing means (24) and the deflection means (32) for converging the electron beams, the convergence means including a first electrode structure (10) that is electrically isolated from and positioned upstream of a second electrode structure (36) that has a limiting aperture through which the electron beams propagate; and first biasing means for providing between the first and second electrode structures a first potential difference of an amount that directs through the limiting aperture a substantial number of the elec­ trons in each one of the beams.
EP87106502A 1986-05-05 1987-05-05 Multiple beam electron discharge tube having beam convergence and beam-to-beam compression compensation Withdrawn EP0244826A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US85957286A 1986-05-05 1986-05-05
US859572 1986-05-05

Publications (2)

Publication Number Publication Date
EP0244826A2 EP0244826A2 (en) 1987-11-11
EP0244826A3 true EP0244826A3 (en) 1989-04-12

Family

ID=25331237

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87106502A Withdrawn EP0244826A3 (en) 1986-05-05 1987-05-05 Multiple beam electron discharge tube having beam convergence and beam-to-beam compression compensation

Country Status (2)

Country Link
EP (1) EP0244826A3 (en)
JP (1) JPS62268045A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001250476A (en) * 2000-03-06 2001-09-14 Sony Corp Method and device for assembling electron gun
CN110197782B (en) * 2019-06-05 2024-05-28 中国工程物理研究院激光聚变研究中心 Lattice configuration electron drift tube

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3798478A (en) * 1972-09-14 1974-03-19 Gte Sylvania Inc Multibeam cathode ray tube having a common beam limiting aperture therein

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3798478A (en) * 1972-09-14 1974-03-19 Gte Sylvania Inc Multibeam cathode ray tube having a common beam limiting aperture therein

Also Published As

Publication number Publication date
EP0244826A2 (en) 1987-11-11
JPS62268045A (en) 1987-11-20

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19870505

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Effective date: 19891013

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ODENTHAL, CONRAD J.