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 (show.php)
JP (1) JPS51112116A (show.php)
BE (1) BE838916A (show.php)
BR (1) BR7600945A (show.php)
CA (1) CA1041218A (show.php)
DE (1) DE2606251A1 (show.php)
DK (1) DK56576A (show.php)
FR (1) FR2303375A1 (show.php)
GB (1) GB1529915A (show.php)
IE (1) IE43761B1 (show.php)
IT (1) IT1056827B (show.php)
LU (1) LU74267A1 (show.php)
NL (1) NL183479C (show.php)

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 (show.php) * 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 (show.php) 1980-06-13
CA1041218A (en) 1978-10-24
FR2303375B1 (show.php) 1978-12-15
BR7600945A (pt) 1976-09-14
LU74267A1 (show.php) 1976-07-23
IE43761L (en) 1976-09-04
DK56576A (da) 1976-09-05

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