GB1019103A - Cathode ray tube - Google Patents

Cathode ray tube

Info

Publication number
GB1019103A
GB1019103A GB24473/63A GB2447363A GB1019103A GB 1019103 A GB1019103 A GB 1019103A GB 24473/63 A GB24473/63 A GB 24473/63A GB 2447363 A GB2447363 A GB 2447363A GB 1019103 A GB1019103 A GB 1019103A
Authority
GB
United Kingdom
Prior art keywords
cathode
gun
support
grid
control grid
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.)
Expired
Application number
GB24473/63A
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Publication of GB1019103A publication Critical patent/GB1019103A/en
Expired 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
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/04—Cathodes
    • 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
    • H01J29/48—Electron guns
    • H01J29/485—Construction of the gun or of parts thereof
    • 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
    • H01J29/48—Electron guns
    • H01J29/51—Arrangements for controlling convergence of a plurality of beams by means of electric field only
    • 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
    • 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
    • H01J29/705—Dynamic convergence systems
    • 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
    • H01J29/707—Arrangements intimately associated with parts of the gun and co-operating with external magnetic excitation devices
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J3/00—Details of electron-optical or ion-optical arrangements or of ion traps common to two or more basic types of discharge tubes or lamps
    • H01J3/02—Electron guns
    • H01J3/027—Construction of the gun or parts thereof
    • 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
    • H01J31/20—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours
    • H01J31/201—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours using a colour-selection electrode
    • H01J31/203—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours using a colour-selection electrode with more than one electron beam
    • H01J31/205—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours using a colour-selection electrode with more than one electron beam with three electron beams in delta configuration
    • 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
    • H01J31/50—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output
    • 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
    • H04N9/18—Picture reproducers using cathode ray tubes using separate electron beams for the primary colour signals
    • H04N9/20—Picture reproducers using cathode ray tubes using separate electron beams for the primary colour signals with more than one beam in a tube
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/58—Electron beam control inside the vessel
    • H01J2229/581—Electron beam control inside the vessel by magnetic means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/58—Electron beam control inside the vessel
    • H01J2229/583—Electron beam control inside the vessel at the source
    • H01J2229/5835—Electron beam control inside the vessel at the source cooperating with the electron gun

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

1,019,103. Colour television tubes. RADIO CORPORATION OF AMERICA. June 19, 1963 [July 6, 1962], No. 24473/63. Heading H1D. In a multi-gun cathode-ray tube, e.g. for colour television, the guns each comprise a sector-shaped electrode 60, Fig. 2, with bent-up tabs 42 so that the corresponding electrodes of the guns can be compactly juxtaposed with adjacent tabs 42, facing each other and extending outwardly to insulator supports rods. The sets of control grids and screen grids may each be assembled in this way on three common support rods. Each gun comprises a cathode 74, Fig. 4 (not shown), a cathode support 72, a control grid 27 and a screen grid 28 whose mounting tabs extend axially in the opposite direction to those of the control grid and of the cathode support. Each gun further includes a focus electrode 29. The cathode 74 and the cathode support 72 may be of dissimilar metals and heat expansion without permanent distortion is taken up by providing the end of the support 72 with three circumferentially spaced dimples 82. An annular boss 64 formed in control grid 27 provides electrostatic shielding and also prevents the deposition of cathode material on the insulator support rods 32, while an annular boss 64 formed in the screen grid 28 forms with the focus electrode 29 a up-shaped convergent prefocusing electrostatic field. A four-gun as well as the three-gun system shown in the drawings is mentioned specifically.
GB24473/63A 1962-07-06 1963-06-19 Cathode ray tube Expired GB1019103A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US208017A US3254251A (en) 1962-07-06 1962-07-06 Cathode ray tube gun having nested electrode assembly

Publications (1)

Publication Number Publication Date
GB1019103A true GB1019103A (en) 1966-02-02

Family

ID=22772882

Family Applications (2)

Application Number Title Priority Date Filing Date
GB24473/63A Expired GB1019103A (en) 1962-07-06 1963-06-19 Cathode ray tube
GB24586/63A Expired GB1016140A (en) 1962-07-06 1963-06-20 Cathode ray tube

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB24586/63A Expired GB1016140A (en) 1962-07-06 1963-06-20 Cathode ray tube

Country Status (5)

Country Link
US (1) US3254251A (en)
BE (2) BE634599A (en)
DE (2) DE1464382B2 (en)
GB (2) GB1019103A (en)
NL (4) NL141701B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3317770A (en) * 1966-01-28 1967-05-02 Kentucky Electronics Inc Cathode ray tube electron gun and support therefor
US3389284A (en) * 1966-03-21 1968-06-18 Admiral Corp Electron gun structure having supporting tabs therefor
GB1173865A (en) * 1967-05-09 1969-12-10 Tokyo Shibaura Electric Co Electron Gun Unit
US3560779A (en) * 1968-05-02 1971-02-02 Rca Corp Shadow mask type color picture tube with a fine mesh flexible particle shield between the gun and target portions
BR7019019D0 (en) * 1969-05-21 1973-05-03 Corp Rca AN ELECTRON GUN
US3659134A (en) * 1970-07-02 1972-04-25 Sylvania Electric Prod Electrode support means for an electron gun structure
US3639795A (en) * 1970-08-24 1972-02-01 Philips Corp Color cathode-ray tube with plural cathodes and three common grids each having same plurality of beam-defining apertures
JPS5071263A (en) * 1973-10-26 1975-06-13
NL7902159A (en) * 1979-03-20 1980-09-23 Philips Nv COLOR TELEVISION PICTURE TUBE.

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2436265A (en) * 1945-07-27 1948-02-17 Du Mont Allen B Lab Inc Cathode-ray tube
US2849646A (en) * 1953-02-24 1958-08-26 Rauland Corp Color convergence system
US2732511A (en) * 1953-04-03 1956-01-24 Dichter
NL108194C (en) * 1953-06-25
US2886729A (en) * 1953-10-08 1959-05-12 Du Mont Allen B Lab Inc Grid-cathode structure for cathode ray tubes
US2719242A (en) * 1954-07-08 1955-09-27 Rca Corp Beam alignment device for plural beam tubes
NL202514A (en) * 1954-12-06
US2861208A (en) * 1955-03-01 1958-11-18 Rca Corp Combination focusing and converging lens for multiple beam tubes
NL205028A (en) * 1955-03-02
US2808527A (en) * 1955-11-22 1957-10-01 Gen Electric Cathode support strap
US2897390A (en) * 1955-12-23 1959-07-28 Glaser Steers Corp Magnetic convergence assembly
US2847598A (en) * 1956-04-16 1958-08-12 Rca Corp Electron gun structure for plural beam tubes
US2898493A (en) * 1956-05-31 1959-08-04 Sylvania Electric Prod Method and apparatus for controlling electron beams
US2914694A (en) * 1957-10-04 1959-11-24 Rca Corp Cathode assembly
US3004183A (en) * 1957-12-03 1961-10-10 Itt Electron gun
US2991381A (en) * 1959-01-07 1961-07-04 Rca Corp Shielded magnet-assembly for colorkinescopes, etc.
NL262339A (en) * 1960-03-14
NL134600C (en) * 1960-11-14
NL271321A (en) * 1960-11-14

Also Published As

Publication number Publication date
DE1464382B2 (en) 1971-02-18
DE1464382A1 (en) 1969-03-06
NL140096B (en) 1973-10-15
BE634598A (en)
NL294993A (en)
NL141701B (en) 1974-03-15
GB1016140A (en) 1966-01-05
BE634599A (en)
DE1288692B (en) 1969-02-06
NL294992A (en)
US3254251A (en) 1966-05-31

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