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EP0067390A3 - Electron beam adjusting device for a cathode ray tube - Google Patents

Electron beam adjusting device for a cathode ray tube Download PDF

Info

Publication number
EP0067390A3
EP0067390A3 EP82104947A EP82104947A EP0067390A3 EP 0067390 A3 EP0067390 A3 EP 0067390A3 EP 82104947 A EP82104947 A EP 82104947A EP 82104947 A EP82104947 A EP 82104947A EP 0067390 A3 EP0067390 A3 EP 0067390A3
Authority
EP
European Patent Office
Prior art keywords
magnetic ring
electron
electron beam
distance
electron gun
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.)
Ceased
Application number
EP82104947A
Other languages
German (de)
French (fr)
Other versions
EP0067390A2 (en
Inventor
Walter Kornaker
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.)
Nokia Deutschland GmbH
Original Assignee
Standard Elektrik Lorenz AG
Nokia Graetz GmbH
International Standard Electric Corp
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 Standard Elektrik Lorenz AG, Nokia Graetz GmbH, International Standard Electric Corp filed Critical Standard Elektrik Lorenz AG
Publication of EP0067390A2 publication Critical patent/EP0067390A2/en
Publication of EP0067390A3 publication Critical patent/EP0067390A3/en
Ceased 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
    • H01J29/70—Arrangements for deflecting ray or beam
    • H01J29/701—Systems for correcting deviation or convergence of a plurality of beams by means of magnetic fields at least
    • H01J29/702—Convergence correction arrangements therefor
    • H01J29/703—Static convergence systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/58—Electron beam control inside the vessel
    • H01J2229/581—Electron beam control inside the vessel by magnetic means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/58—Electron beam control inside the vessel
    • H01J2229/583—Electron beam control inside the vessel at the source
    • H01J2229/5835—Electron beam control inside the vessel at the source cooperating with the electron gun

Landscapes

  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

An der Elektronenkanone einer Farbbildröhre ist ein Magnetring befestigt, der zum Einstellen von Farbreinheit, Konvergenz und Raster dient. Der Magnetring umschließt eine langgestreckte Fläche, die senkrecht zu der Ebene steht, in der drei von der Elektronenkanone erzeugte Elektronen­ strahlen liegen. Die Form des Magnetrings 22 ist so gewählt, daß der y-Abstand 46 vom Magnetring 22 zur Mittelachse 42.1 des mittleren Elektronenstrahls großer it als der Abstand des Magnetrings 22 von der jeweiligen Mittelachse 42.2 eines äußeren Elektronenstrahls. Diese Abstandswahl hat Einfluß auf das Schärfeverhalten der Elektronenstrahlen. There is a on the electron gun of a color picture tube Magnet ring attached, which is used to adjust color purity, Serves convergence and grid. The magnetic ring encloses an elongated surface that is perpendicular to the plane, in which three electrons generated by the electron gun rays lie. The shape of the magnetic ring 22 is selected that the y distance 46 from the magnetic ring 22 to the central axis 42.1 of the central electron beam is larger than that Distance of the magnetic ring 22 from the respective central axis 42.2 of an outer electron beam. This distance choice has an influence on the sharpness behavior of the electron beams.

Magnetringe der angegebenen Art können in allen Mehrstrahl-Kathodenstrahlrohren, insbesondere in Farbbil­ dröhren mit drei in einer Elektronenkanone in einer Ebene liegenden Elektronenstrahlen verwendet werden. Magnetic rings of the specified type can be used in all Multi-beam cathode-ray tubes, especially in color tube with three in one electron gun in one plane lying electron beams are used.

EP82104947A 1981-06-12 1982-06-05 Electron beam adjusting device for a cathode ray tube Ceased EP0067390A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3123301A DE3123301C2 (en) 1981-06-12 1981-06-12 Device for adjusting electron beams from a cathode ray tube
DE3123301 1981-06-12

Publications (2)

Publication Number Publication Date
EP0067390A2 EP0067390A2 (en) 1982-12-22
EP0067390A3 true EP0067390A3 (en) 1984-09-05

Family

ID=6134525

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82104947A Ceased EP0067390A3 (en) 1981-06-12 1982-06-05 Electron beam adjusting device for a cathode ray tube

Country Status (5)

Country Link
US (1) US4495438A (en)
EP (1) EP0067390A3 (en)
JP (1) JPS5814451A (en)
CA (1) CA1206510A (en)
DE (1) DE3123301C2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59170119A (en) * 1983-03-16 1984-09-26 Hitachi Chem Co Ltd Preparation of thermoplastic polyether imide poymer
NL8303423A (en) * 1983-10-06 1985-05-01 Philips Nv COLOR IMAGE TUBE.
DE102011083214A1 (en) 2011-09-22 2013-03-28 Siemens Aktiengesellschaft Electrical conduit means, end corona shielding assembly, and method of making an end corona shield

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000635A (en) * 1977-07-06 1979-01-10 Philips Nv Colour display tube and a method of manufacturing the same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL242894A (en) * 1958-09-06
US3614502A (en) * 1969-09-16 1971-10-19 Frederick F Doggett Electron gun convergence assembly
DE2612607C3 (en) * 1976-03-25 1984-01-12 Philips Patentverwaltung Gmbh, 2000 Hamburg Static convergence correction device in color television picture display tubes
DE2722477A1 (en) * 1977-05-18 1978-11-23 Standard Elektrik Lorenz Ag COLOR TELEVISION SCREENS
JPS5514606A (en) * 1978-07-17 1980-02-01 Toshiba Corp Color picture tube
JPS55108154A (en) * 1979-02-14 1980-08-19 Toshiba Corp Color picture tube apparatus
DE3003197A1 (en) * 1980-01-30 1981-08-06 Standard Elektrik Lorenz Ag, 7000 Stuttgart DEVICE FOR ADJUSTING THE ELECTRON BEAMS OF A COLOR IMAGE TUBE

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000635A (en) * 1977-07-06 1979-01-10 Philips Nv Colour display tube and a method of manufacturing the same

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
FUNKSCHAU, Nr. 26, 1980, Seiten 57-58, München, DE, K. Tetzner: 'Die Röhre leb - und zwar kr{ftig' *
PATENTS ABSTRACTS OF JAPAN, Band 4, Nr. 157 (E-32)(639), 4. November 1980, Seite 130 E 32 & JP - A - 55 108 154 (TOKYO SHIBAURA DENKI K.K.) 19.08.1980 *
PATENTS ABSTRACTS OF JAPAN, Band 4, Nr. 44 (E-5)(526), 4. April 1980, Seite 29 E 5 & JP - A - 55 014 606 (TOKYO SHIBAURA DENKI K.K.) 01.02.1980 *

Also Published As

Publication number Publication date
CA1206510A (en) 1986-06-24
JPS5814451A (en) 1983-01-27
DE3123301C2 (en) 1985-08-08
EP0067390A2 (en) 1982-12-22
US4495438A (en) 1985-01-22
DE3123301A1 (en) 1983-01-05

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Legal Events

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

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AK Designated contracting states

Designated state(s): DE FR IT NL

PUAL Search report despatched

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AK Designated contracting states

Designated state(s): DE FR IT NL

17P Request for examination filed

Effective date: 19841017

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: STANDARD ELEKTRIK LORENZ AKTIENGESELLSCHAFT

Owner name: ALCATEL N.V.

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: STANDARD ELEKTRIK LORENZ AKTIENGESELLSCHAFT

Owner name: ALCATEL N.V.

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: NOKIA GRAETZ GESELLSCHAFT MIT BESCHRAENKTER HAFTUN

STAA Information on the status of an ep patent application or granted ep patent

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18R Application refused

Effective date: 19890509

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Inventor name: KORNAKER, WALTER