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GB1335508A - Colour cathode ray tube - Google Patents

Colour cathode ray tube

Info

Publication number
GB1335508A
GB1335508A GB2274772A GB2274772A GB1335508A GB 1335508 A GB1335508 A GB 1335508A GB 2274772 A GB2274772 A GB 2274772A GB 2274772 A GB2274772 A GB 2274772A GB 1335508 A GB1335508 A GB 1335508A
Authority
GB
United Kingdom
Prior art keywords
field
deflection
horizontal
vertical
convergence device
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
GB2274772A
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co Ltd
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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Publication of GB1335508A publication Critical patent/GB1335508A/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
    • H01J29/46—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

Landscapes

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

Abstract

1335508 Colour television tubes TOKYO SHIBAURA ELECTRIC CO Ltd 15 May 1972 [18 May 1971] 22747/72 Heading H1D A shadow mask colour C.R.T. comprises three electron guns 17R, 17G, 17B arranged in the same plane, a convergence device 18, a deflection device 21 and beam control means 22 to shield the beams from the outer guns from a horizontal deflection field and the beam from the centre gun from a vertical field thereby reducing the relative horizontal deflection angles of the side beams and the relative vertical deflection angle of the centre beam. This results in equal horizontal displacement of side rasters and permits balanced current in the convergence device. The deflection device 21 produces a horizontal "pin cushion" field and a vertical "barrel" field. The convergence device 18 comprises a magnet and coil assembly 19, 20. The beam control means 22 includes pairs of U- and V-shaped members 23, 24 of material with high magnetic permeability.
GB2274772A 1971-05-18 1972-05-15 Colour cathode ray tube Expired GB1335508A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46032975A JPS5126208B1 (en) 1971-05-18 1971-05-18

Publications (1)

Publication Number Publication Date
GB1335508A true GB1335508A (en) 1973-10-31

Family

ID=12373878

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2274772A Expired GB1335508A (en) 1971-05-18 1972-05-15 Colour cathode ray tube

Country Status (5)

Country Link
US (1) US3860850A (en)
JP (1) JPS5126208B1 (en)
DE (1) DE2224404C3 (en)
FR (1) FR2138110B1 (en)
GB (1) GB1335508A (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4196370A (en) * 1978-02-24 1980-04-01 Rca Corporation CRT generating three inline beams and having shunts for weakening center beam horizontal magnetic deflection and strengthening vertical deflection
NL7802129A (en) * 1978-02-27 1979-08-29 Philips Nv DEVICE FOR DISPLAYING COLORED IMAGES.
US4225804A (en) * 1978-04-22 1980-09-30 Gte Sylvania N.V. Cathode ray tube coma correction device
US4396862A (en) * 1978-05-01 1983-08-02 Rca Corporation Color picture tube with means for affecting magnetic deflection fields in electron gun area
US4634923A (en) * 1979-11-15 1987-01-06 Rca Corporation Color picture tube having improved electron gun
JPS56138402A (en) * 1980-03-31 1981-10-29 Ebara Corp Sealing device for rotary piston machine
US4329618A (en) * 1980-05-29 1982-05-11 Rca Corporation Horizontal deflection enhancement for kinescopes
US4547698A (en) * 1980-09-29 1985-10-15 Zenith Electronics Corporation Magnetic deflection field enhancer means for television CRT electron guns
US4370593A (en) * 1980-12-30 1983-01-25 Rca Corporation In-line electron gun and method for modifying the same
NL8204465A (en) * 1982-11-18 1984-06-18 Philips Nv COLOR IMAGE TUBE.
JPS59119654A (en) * 1982-12-24 1984-07-10 Matsushita Electronics Corp Picture tube apparatus
NL8303423A (en) * 1983-10-06 1985-05-01 Philips Nv COLOR IMAGE TUBE.
US4556819A (en) * 1983-12-13 1985-12-03 Rca Corporation Color picture tube having inline electron gun with coma correction members
KR900000351B1 (en) * 1984-05-10 1990-01-25 가부시끼가이샤 도시바 Color cathode ray tube
CA1265838A (en) * 1985-06-12 1990-02-13 Albertus A.S. Sluyterman Colour television display tube with coma correction
US4730144A (en) * 1986-08-27 1988-03-08 Rca Corporation Color picture tube having inline electron gun with coma correction members
GB8707171D0 (en) * 1987-03-25 1987-04-29 Philips Nv Colour cathode ray tube

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE624849A (en) * 1961-05-08
NL286376A (en) * 1961-12-07
FR1392502A (en) * 1963-10-30 1965-03-19 Cft Comp Fse Television Operation with color television receiver tubes
GB1217240A (en) * 1967-04-06 1970-12-31 Sony Corp New and improved color picture tube system
JPS4833331B1 (en) * 1968-02-05 1973-10-13
JPS4833529B1 (en) * 1968-12-30 1973-10-15

Also Published As

Publication number Publication date
US3860850A (en) 1975-01-14
DE2224404B2 (en) 1981-10-01
DE2224404A1 (en) 1972-11-30
JPS5126208B1 (en) 1976-08-05
FR2138110A1 (en) 1972-12-29
FR2138110B1 (en) 1980-02-15
DE2224404C3 (en) 1982-05-19

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PE20 Patent expired after termination of 20 years