IL29668A - Correction of anisotropic astigmatism in colour television display devices - Google Patents

Correction of anisotropic astigmatism in colour television display devices

Info

Publication number
IL29668A
IL29668A IL29668A IL2966868A IL29668A IL 29668 A IL29668 A IL 29668A IL 29668 A IL29668 A IL 29668A IL 2966868 A IL2966868 A IL 2966868A IL 29668 A IL29668 A IL 29668A
Authority
IL
Israel
Prior art keywords
correction
display devices
television display
colour television
anisotropic astigmatism
Prior art date
Application number
IL29668A
Other languages
English (en)
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of IL29668A publication Critical patent/IL29668A/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
    • H01J29/70—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
    • 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
    • H04N3/237—Distortion correction, e.g. for pincushion distortion correction, S-correction using passive elements, e.g. diodes
    • 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
    • H04N9/285—Arrangements for convergence or focusing using quadrupole lenses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/96—Circuit elements other than coils, reactors or the like, associated with the tube
    • H01J2229/964—Circuit elements other than coils, reactors or the like, associated with the tube associated with the deflection system

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
IL29668A 1967-03-22 1968-03-21 Correction of anisotropic astigmatism in colour television display devices IL29668A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6704218A NL6704218A (de) 1967-03-22 1967-03-22

Publications (1)

Publication Number Publication Date
IL29668A true IL29668A (en) 1971-12-29

Family

ID=19799639

Family Applications (1)

Application Number Title Priority Date Filing Date
IL29668A IL29668A (en) 1967-03-22 1968-03-21 Correction of anisotropic astigmatism in colour television display devices

Country Status (16)

Country Link
US (1) US3440483A (de)
AT (1) AT281147B (de)
BE (1) BE712525A (de)
CH (1) CH486178A (de)
CS (1) CS159743B2 (de)
DE (1) DE1537981B2 (de)
DK (1) DK127620B (de)
ES (1) ES351782A1 (de)
FI (1) FI43615B (de)
FR (1) FR1573074A (de)
GB (1) GB1230162A (de)
IL (1) IL29668A (de)
NL (1) NL6704218A (de)
NO (1) NO125124B (de)
OA (1) OA02775A (de)
SE (1) SE326211B (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL155156B (nl) * 1968-07-11 1977-11-15 Philips Nv Schakelinrichting voor het in een televisieweergeefinrichting opwekken van een beeldregelfrequente zaagtandvormige stroom met een rasterfrequent varierende amplitude.
DE1934568A1 (de) * 1969-07-08 1971-01-28 Philips Nv Schaltungsanordnung zur Erzeugung eines zeilenfrequenten saegezahnfoermigen Stromes mit einer sich rasterfrequent aendernden Amplitude in einer Bildwiedergabevorrichtung
US3988637A (en) * 1969-05-29 1976-10-26 U.S. Philips Corporation Circuit arrangement for generating in a picture display device a sawtooth current of line frequency having an amplitude varying at field frequency
NL6909887A (de) * 1969-06-27 1970-12-29
US3716748A (en) * 1969-07-24 1973-02-13 Denki Onkyo Co Ltd Saturable reactor for correcting raster distortion
US3631296A (en) * 1969-12-10 1971-12-28 Motorola Inc Television deflection system
JPS536489B1 (de) * 1970-09-09 1978-03-08
BE789869A (fr) * 1971-10-09 1973-04-09 Philips Nv Dispositif de reproduction d'images de television en couleur, muni d'untube cathodique
US3914652A (en) * 1971-11-17 1975-10-21 Philips Corp Color television display apparatus provided with a modulator for generating a correction current for correcting deflection errors
NL155430B (nl) * 1972-12-15 1977-12-15 Philips Nv Kleurenbeeldweergeefinrichting voorzien van een beeldweergeefbuis.
US3961223A (en) * 1975-03-04 1976-06-01 United Technologies Corporation Astigmatic focus correction circuit
NL8104947A (nl) * 1981-11-02 1983-06-01 Philips Nv Televisie lijnafbuigschakeling.
US4673986A (en) * 1982-11-23 1987-06-16 Tektronix, Inc. Image distortion correction method and apparatus
EP0421523B1 (de) * 1989-10-02 1995-06-28 Koninklijke Philips Electronics N.V. Farbbildröhrensystem mit reduziertem Fleckwachstum
US5028850A (en) * 1990-07-19 1991-07-02 Rca Licensing Corporation Deflection system with a controlled beam spot
US5327051A (en) * 1990-07-19 1994-07-05 Rca Thomson Licensing Corporation Deflection system with a pair of quadrupole arrangements
WO2003025970A2 (en) * 2001-09-18 2003-03-27 Koninklijke Philips Electronics N.V. Crt with reduced line deflection energy

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2829303A (en) * 1954-11-01 1958-04-01 Rca Corp Electron beam controlling apparatus

Also Published As

Publication number Publication date
AT281147B (de) 1970-05-11
OA02775A (fr) 1970-12-15
DE1537981A1 (de) 1970-04-30
GB1230162A (de) 1971-04-28
CH486178A (de) 1970-02-15
NO125124B (de) 1972-07-17
FR1573074A (de) 1969-07-04
DE1537981B2 (de) 1971-08-19
DK127620B (da) 1973-12-03
FI43615B (de) 1971-02-01
SE326211B (de) 1970-07-20
BE712525A (de) 1968-09-20
NL6704218A (de) 1968-09-23
ES351782A1 (es) 1969-06-16
CS159743B2 (de) 1975-01-31
US3440483A (en) 1969-04-22

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