IL41177A - A color image display system - Google Patents

A color image display system

Info

Publication number
IL41177A
IL41177A IL4117772A IL4117772A IL41177A IL 41177 A IL41177 A IL 41177A IL 4117772 A IL4117772 A IL 4117772A IL 4117772 A IL4117772 A IL 4117772A IL 41177 A IL41177 A IL 41177A
Authority
IL
Israel
Prior art keywords
yoke
beams
picture tube
screen
image display
Prior art date
Application number
IL4117772A
Original Assignee
Rca 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
Priority claimed from GB177972*[A external-priority patent/GB1389423A/en
Application filed by Rca Corp filed Critical Rca Corp
Publication of IL41177A publication Critical patent/IL41177A/en

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
    • H01J29/82—Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements
    • H01J29/823—Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements around the neck of the tube
    • 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
    • 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
    • H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/76—Deflecting by magnetic fields only
    • H01J29/764—Deflecting by magnetic fields only using toroidal windings

Landscapes

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

Claims (5)

RCA 65396 WHAT IS CLAIMED IS:
1. In a color image display system, the combination having a color picture tube including an envelope containing a screen of different color phosphor elements and an electron gun assembly disposed within a neck portion of said tube envelope for producing a plurality of beams for impinging on said respective color phosphor elements; characterized by a deflection yoke adapted to be energized to cause said beams to scan respective rasters on a color phosphor screen, said yoke having a smallest inner diameter larger than the outer diameter of said neck portion of said tube envelope; and means for mounting said yoke on said picture tube, said means being selected for allowing transverse movement of said yoke relative to said picture tube while maintaining substantial parallelism of the central longitudinal axes of said yoke and said picture tube so that said yoke can be fixedly mounted in a position providing substantial convergence of said beams and coincidence of said rasters.
2. A method advantageously utilizing the color image display system of Claim 1 characterized by mounting a beam deflection yoke relative to a color picture tube comprising an envelope containing a color phosphor screen, an electron gun assembly for projecting a plurality of electron beams toward said screen and a deflection region for said beams, said method comprising supporting said tube in a predetermined position; temporarily supporting said deflection yoke loosely assembled around said picture tube adjacent said deflection region; operating said tube and yoke to project said beams toward said screen and to scan RCA 65,396 Claim 2 continued— said beams in separate rasters on said screen, and simultaneously adjusting the transverse position of said yoke relative to said picture tube while maintaining substantial parallelism of the longitudinal axes of said yoke and picture tube to achieve substantial convergence of said beams and coincidence of said rasters on said screen; and fixedly attaching said yoke to said picture tube in said adjusted position.
3. A color image display system according to Claim 1, characterized in that said electron gun assembly is selected for producing three coplanar in-line beams.
4. A color image display system according to Claim 1, characterized in that said yoke comprises a pair vertical and a pair of horizontal deflection coils toroidally wound around a core, the conductor winding distribution of said coils being selected for producing positive vertical isotropic astigmatism and negative horizontal isotropic astigmatism.
5. A color image display system according to Claim 1, characterized in that said phosphor screen comprises strips of different color phosphor elements. P.0. Box 33116 , T e l - A v i v Attorneys for Applicant
IL4117772A 1972-01-14 1972-12-26 A color image display system IL41177A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB177972*[A GB1389423A (en) 1972-01-14 1972-01-14 Colour cathode ray tube display system
US24586272A 1972-04-20 1972-04-20

Publications (1)

Publication Number Publication Date
IL41177A true IL41177A (en) 1976-07-30

Family

ID=26236975

Family Applications (1)

Application Number Title Priority Date Filing Date
IL4117772A IL41177A (en) 1972-01-14 1972-12-26 A color image display system

Country Status (15)

Country Link
JP (2) JPS4882717A (en)
AR (1) AR197483A1 (en)
BE (1) BE793989A (en)
CH (1) CH559488A5 (en)
DD (1) DD102009A5 (en)
DE (1) DE2224097B2 (en)
DK (1) DK158434C (en)
FR (1) FR2167972B1 (en)
IE (1) IE37030B1 (en)
IL (1) IL41177A (en)
IT (1) IT973301B (en)
NO (1) NO135807C (en)
PH (1) PH10587A (en)
SE (1) SE388718B (en)
YU (1) YU35932B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3930185A (en) * 1974-05-20 1975-12-30 Rca Corp Display system with simplified convergence
DE2506268C2 (en) * 1975-02-14 1977-01-20 Standard Elektrik Lorenz Ag DEFLECTION SYSTEM FOR COLOR TELEVISION TUBES
FR2689678B1 (en) * 1992-04-07 1994-09-23 Thomson Tubes & Displays Method for positioning a deflector on the neck of a cathode ray tube and device implementing the method.

Also Published As

Publication number Publication date
YU6973A (en) 1980-12-31
JPS5328327A (en) 1978-03-16
NO135807C (en) 1977-06-08
AR197483A1 (en) 1974-04-15
DE2224097A1 (en) 1973-07-19
DD102009A5 (en) 1973-11-20
YU35932B (en) 1981-08-31
IE37030B1 (en) 1977-04-13
IT973301B (en) 1974-06-10
JPS4882717A (en) 1973-11-05
NO135807B (en) 1977-02-21
SE388718B (en) 1976-10-11
FR2167972A1 (en) 1973-08-24
DK158434B (en) 1990-05-14
PH10587A (en) 1977-07-12
IE37030L (en) 1973-07-14
FR2167972B1 (en) 1975-10-31
DE2224097B2 (en) 1976-03-18
DK158434C (en) 1990-10-22
BE793989A (en) 1973-05-02
CH559488A5 (en) 1975-02-28

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