FR2457014A2 - Dispositif a decharge d'electrons avec correction dynamique de la focalisation - Google Patents

Dispositif a decharge d'electrons avec correction dynamique de la focalisation

Info

Publication number
FR2457014A2
FR2457014A2 FR8011173A FR8011173A FR2457014A2 FR 2457014 A2 FR2457014 A2 FR 2457014A2 FR 8011173 A FR8011173 A FR 8011173A FR 8011173 A FR8011173 A FR 8011173A FR 2457014 A2 FR2457014 A2 FR 2457014A2
Authority
FR
France
Prior art keywords
fireplace
discharge device
electron discharge
focus correction
dynamic focus
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.)
Granted
Application number
FR8011173A
Other languages
English (en)
Other versions
FR2457014B2 (fr
Inventor
Bozidar Janko
Kenneth William Hawken
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 FR2457014A2 publication Critical patent/FR2457014A2/fr
Application granted granted Critical
Publication of FR2457014B2 publication Critical patent/FR2457014B2/fr
Granted 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
    • H01J29/58—Arrangements for focusing or reflecting ray or beam
    • H01J29/62—Electrostatic lenses
    • H01J29/622—Electrostatic lenses producing fields exhibiting symmetry of revolution
    • H01J29/624—Electrostatic lenses producing fields exhibiting symmetry of revolution co-operating with or closely associated to an electron gun
    • 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
    • H01J29/58—Arrangements for focusing or reflecting ray or beam
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes

Landscapes

  • Details Of Television Scanning (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

L'INVENTION CONCERNE UN TUBE A RAYONS CATHODIQUES A FAIBLE TENSION DE CONCENTRATION ET DE CORRECTION DYNAMIQUE. CE TUBE COMPREND EN COMBINAISON DEUX SYSTEMES DE LENTILLES A ELECTRONS 20, 22 ET 24, 26, 28, 30 POUR CONCENTRER UN FAISCEAU ELECTRONIQUE D'ABORD VERS UN PREMIER FOYER C, PUIS VERS UN SECOND FOYER C, UNE LENTILLE RECEVANT UNE TENSION VARIABLE, AFIN DE CONTROLER DYNAMIQUEMENT L'EMPLACEMENT DU FOYER POUR FOCALISER LE FAISCEAU SUR UN ECRAN D'AFFICHAGE 48 EN N'IMPORTE QUEL POINT EN DEHORS DU CENTRE DE L'ECRAN. L'INVENTION S'APPLIQUE AUX SYSTEMES VIDEO ET NOTAMMENT AUX OSCILLOSCOPES.
FR8011173A 1979-05-14 1980-05-14 Dispositif a decharge d'electrons avec correction dynamique de la focalisation Granted FR2457014A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/038,606 US4277722A (en) 1978-02-15 1979-05-14 Cathode ray tube having low voltage focus and dynamic correction

Publications (2)

Publication Number Publication Date
FR2457014A2 true FR2457014A2 (fr) 1980-12-12
FR2457014B2 FR2457014B2 (fr) 1985-03-29

Family

ID=21900867

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8011173A Granted FR2457014A2 (fr) 1979-05-14 1980-05-14 Dispositif a decharge d'electrons avec correction dynamique de la focalisation

Country Status (7)

Country Link
US (1) US4277722A (fr)
JP (1) JPS55151752A (fr)
CA (1) CA1139007A (fr)
DE (1) DE3018171A1 (fr)
FR (1) FR2457014A2 (fr)
GB (1) GB2049989B (fr)
NL (1) NL8001395A (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4496877A (en) * 1982-04-06 1985-01-29 Zenith Electronics Corporation Unipotential electron gun for short cathode ray tubes
US4639644A (en) * 1984-01-30 1987-01-27 Raytheon Company High voltage dynamic focusing system
JPS6199249A (ja) * 1984-10-18 1986-05-17 Matsushita Electronics Corp 受像管装置
JPH0719541B2 (ja) * 1985-04-30 1995-03-06 株式会社日立製作所 インライン型カラー受像管
US4772826A (en) * 1986-06-26 1988-09-20 Rca Licensing Corporation Color display system
JP2569027B2 (ja) * 1986-12-05 1997-01-08 株式会社日立製作所 カラ−受像管用電子銃
EP0283941B1 (fr) * 1987-03-25 1993-06-09 Iwatsu Electric Co., Ltd. Tube à rayons cathodiques muni d'un canon à électrons permettant une refocalisation aisée du faisceau d'électrons
US4812718A (en) * 1987-12-14 1989-03-14 The United States Of America As Represented By The Secretary Of The Air Force Resolution delta gun color monitor system apparatus
US5262702A (en) * 1989-03-23 1993-11-16 Kabushiki Kaisha Toshiba Color cathode-ray tube apparatus
US6841924B1 (en) * 1999-11-03 2005-01-11 Intel Corporation Low-voltage high-resolution einzel gun

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2123011A (en) * 1935-03-19 1938-07-05 Emi Ltd Electron discharge apparatus
US2922072A (en) * 1957-12-05 1960-01-19 Sylvania Electric Prod Image reproduction device
US2931937A (en) * 1955-06-16 1960-04-05 Csf Storage tubes
GB1183061A (en) * 1966-05-12 1970-03-04 Gen Electric Electron Focus Projection and Scanning System
US4052643A (en) * 1972-04-12 1977-10-04 Hitachi, Ltd. Electron guns for use in cathode ray tubes
FR2394890A1 (fr) * 1977-06-15 1979-01-12 Hitachi Ltd Canon a electrons pour tube a rayons cathodiques

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3603839A (en) * 1968-06-04 1971-09-07 Victor Company Of Japan Color television picture tube of the single electron gun type
DE2449936C3 (de) * 1974-10-21 1980-01-24 Genrich Dmitrievitsch Fryasino Moskovskoi Oblasti Balandin Elektronenstrahlröhre mit veränderlicher Strahlgeschwindigkeit
GB2015195A (en) * 1978-02-15 1979-09-05 Tektronix Inc Cathode Ray Tube Having Low Voltage Focus and Dynamic Correction

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2123011A (en) * 1935-03-19 1938-07-05 Emi Ltd Electron discharge apparatus
US2931937A (en) * 1955-06-16 1960-04-05 Csf Storage tubes
US2922072A (en) * 1957-12-05 1960-01-19 Sylvania Electric Prod Image reproduction device
GB1183061A (en) * 1966-05-12 1970-03-04 Gen Electric Electron Focus Projection and Scanning System
US4052643A (en) * 1972-04-12 1977-10-04 Hitachi, Ltd. Electron guns for use in cathode ray tubes
FR2394890A1 (fr) * 1977-06-15 1979-01-12 Hitachi Ltd Canon a electrons pour tube a rayons cathodiques

Also Published As

Publication number Publication date
NL8001395A (nl) 1980-11-18
GB2049989B (en) 1983-04-27
GB2049989A (en) 1980-12-31
JPS55151752A (en) 1980-11-26
CA1139007A (fr) 1983-01-04
FR2457014B2 (fr) 1985-03-29
US4277722A (en) 1981-07-07
DE3018171A1 (de) 1980-11-27

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