BE838916A - Circuit de correction de l'astigmatisme dans un tube a rayons cathodiques - Google Patents

Circuit de correction de l'astigmatisme dans un tube a rayons cathodiques

Info

Publication number
BE838916A
BE838916A BE164620A BE164620A BE838916A BE 838916 A BE838916 A BE 838916A BE 164620 A BE164620 A BE 164620A BE 164620 A BE164620 A BE 164620A BE 838916 A BE838916 A BE 838916A
Authority
BE
Belgium
Prior art keywords
astigma
ray tube
cathode ray
correction circuit
correction
Prior art date
Application number
BE164620A
Other languages
English (en)
French (fr)
Inventor
Th J Ray
Th J Rebeschi
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 filed Critical
Publication of BE838916A publication Critical patent/BE838916A/xx

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
    • H01J29/56—Arrangements for controlling cross-section of ray or beam; Arrangements for correcting aberration of beam, e.g. due to lenses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/22—Circuits for controlling dimensions, shape or centering of picture on screen
    • H04N3/23—Distortion correction, e.g. for pincushion distortion correction, S-correction
    • H04N3/233—Distortion correction, e.g. for pincushion distortion correction, S-correction using active elements
    • H04N3/2335—Distortion correction, e.g. for pincushion distortion correction, S-correction using active elements with calculating means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/26—Modifications of scanning arrangements to improve focusing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/16—Picture reproducers using cathode ray tubes
    • H04N9/28—Arrangements for convergence or focusing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/56—Correction of beam optics
    • H01J2229/568—Correction of beam optics using supplementary correction devices
    • H01J2229/5681—Correction of beam optics using supplementary correction devices magnetic
    • H01J2229/5687—Auxiliary coils

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Details Of Television Scanning (AREA)
BE164620A 1975-03-04 1976-02-25 Circuit de correction de l'astigmatisme dans un tube a rayons cathodiques BE838916A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/555,319 US3961223A (en) 1975-03-04 1975-03-04 Astigmatic focus correction circuit

Publications (1)

Publication Number Publication Date
BE838916A true BE838916A (fr) 1976-06-16

Family

ID=24216816

Family Applications (1)

Application Number Title Priority Date Filing Date
BE164620A BE838916A (fr) 1975-03-04 1976-02-25 Circuit de correction de l'astigmatisme dans un tube a rayons cathodiques

Country Status (13)

Country Link
US (1) US3961223A (en:Method)
JP (1) JPS51112116A (en:Method)
BE (1) BE838916A (en:Method)
BR (1) BR7600945A (en:Method)
CA (1) CA1041218A (en:Method)
DE (1) DE2606251A1 (en:Method)
DK (1) DK56576A (en:Method)
FR (1) FR2303375A1 (en:Method)
GB (1) GB1529915A (en:Method)
IE (1) IE43761B1 (en:Method)
IT (1) IT1056827B (en:Method)
LU (1) LU74267A1 (en:Method)
NL (1) NL183479C (en:Method)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2536752C3 (de) * 1975-08-18 1978-06-22 Siemens Ag, 1000 Berlin Und 8000 Muenchen Spulenanordnung zum dynamischen und statischen Fokussieren des Elektronenstrahls von Bildaufnahme- oder -wiedergaberöhren
US4142132A (en) * 1977-07-05 1979-02-27 Control Data Corporation Method and means for dynamic correction of electrostatic deflector for electron beam tube
US4353013A (en) * 1978-04-17 1982-10-05 Cpt Corporation Drive circuits for a high resolutions cathode ray tube display
US4323826A (en) * 1978-04-17 1982-04-06 Cpt Corporation Drive circuits for a high resolution cathode ray tube display
US4223252A (en) * 1979-05-07 1980-09-16 Raytheon Company Color switching display system
US4249112A (en) * 1979-09-18 1981-02-03 Tektronix, Inc. Dynamic focus and astigmatism correction circuit
US4258298A (en) * 1979-12-28 1981-03-24 Sperry Corporation Dynamic focus control and power supply for cathode ray tube displays
US4385259A (en) * 1980-12-24 1983-05-24 Sperry Corporation Dynamic convergence control apparatus for shadow mask CRT displays
JPS57174833A (en) * 1981-04-20 1982-10-27 Matsushita Electronics Corp Cathode ray tube
US4388619A (en) * 1981-06-30 1983-06-14 International Business Machines Corporation Corrector for bundle deflection distortion in multibeam cathode ray tubes
JPS59144471U (ja) * 1983-03-18 1984-09-27 テクトロニクス・インコ−ポレイテツド 陰極線管の焦点制御装置
US4899091A (en) * 1984-05-29 1990-02-06 Tektronix, Inc. Cathode-ray-tube astigmatism correction apparatus
EP0163443B1 (en) * 1984-05-29 1990-08-16 Tektronix, Inc. Cathode ray tube astigmatism correction apparatus
US4633144A (en) * 1984-08-20 1986-12-30 Tektronix, Inc. Dynamic focus signal shaper
NL8500500A (nl) * 1985-02-22 1986-09-16 Philips Nv Kathodestraalbuis met een stigmator voor bundelfoutcorrectie.
JPH0719542B2 (ja) * 1985-07-23 1995-03-06 ソニー株式会社 陰極線管のビ−ムスポツト補正装置
US4887009A (en) * 1986-02-12 1989-12-12 Rca Licensing Corporation Color display system
EP0241218B1 (en) * 1986-04-03 1991-12-18 Mitsubishi Denki Kabushiki Kaisha Cathode ray tube apparatus
NL8601512A (nl) * 1986-06-11 1988-01-04 Philips Nv Kathodestraalbuis met magnetische focusseerlens.
US4731563A (en) * 1986-09-29 1988-03-15 Rca Corporation Color display system
US4799210A (en) * 1986-11-05 1989-01-17 Unisys Corporation Fiber optic read/write head for an optical disk memory system
US7382929B2 (en) * 1989-05-22 2008-06-03 Pixel Instruments Corporation Spatial scan replication circuit
US5146142A (en) * 1992-01-28 1992-09-08 North American Philips Corporation Dynamic focussing signal power amplifier for magnetically focussed raster scan cathode ray tube
JPH06233150A (ja) * 1993-02-03 1994-08-19 Sony Corp フォーカス電圧制御装置
US5455492A (en) * 1993-08-17 1995-10-03 Digital Equipment Corporation Dynamic focus correction circuit
US5428270A (en) * 1993-08-17 1995-06-27 Digital Equipment Corporation Dynamic focus correction circuit
US6285397B1 (en) 1997-01-16 2001-09-04 Display Laboratories, Inc. Alignment of cathode ray tube video displays using a host computer processor
US6437829B1 (en) 1997-01-16 2002-08-20 Display Laboratories, Inc. Alignment of cathode ray tube displays using a video graphics controller
US5969486A (en) * 1997-01-16 1999-10-19 Display Laboratories, Inc. Detecting horizontal blanking time in cathode ray tube devices
US20050008272A1 (en) * 2003-07-08 2005-01-13 Prashant Bhat Method and device for bearing seal pressure relief

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL181184B (nl) * 1949-11-17 Kubota Ltd Eenassige van een eigen aandrijving voorziene landbouwmachine.
US3084276A (en) * 1960-01-18 1963-04-02 Texas Instruments Inc Transistorized dynamic focus circuit
NL6704218A (en:Method) * 1967-03-22 1968-09-23
US3622836A (en) * 1968-03-25 1971-11-23 Eastman Kodak Co Deflection amplifier with dynamic focus control
NL148441B (nl) * 1969-07-09 1976-01-15 Philips Nv Kleurentelevisieweergeefinrichting voorzien van een elektronenstraalbuis, alsmede afbuigspoelenstelsel voor toepassing daarin.
GB1325540A (en) * 1969-10-10 1973-08-01 Texas Instruments Ltd Electron beam apparatus
US3879635A (en) * 1973-02-06 1975-04-22 Gen Electric Improved convergence and triad distortion correction means for wide angle cathode ray tube

Also Published As

Publication number Publication date
IE43761B1 (en) 1981-05-20
GB1529915A (en) 1978-10-25
NL183479B (nl) 1988-06-01
NL183479C (nl) 1988-11-01
NL7600088A (nl) 1976-09-07
IT1056827B (it) 1982-02-20
JPS51112116A (en) 1976-10-04
FR2303375A1 (fr) 1976-10-01
US3961223A (en) 1976-06-01
DE2606251A1 (de) 1976-09-16
JPS5521980B2 (en:Method) 1980-06-13
CA1041218A (en) 1978-10-24
FR2303375B1 (en:Method) 1978-12-15
BR7600945A (pt) 1976-09-14
LU74267A1 (en:Method) 1976-07-23
IE43761L (en) 1976-09-04
DK56576A (da) 1976-09-05

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