GB1274346A - Cathode-ray tubes - Google Patents

Cathode-ray tubes

Info

Publication number
GB1274346A
GB1274346A GB969770A GB969770A GB1274346A GB 1274346 A GB1274346 A GB 1274346A GB 969770 A GB969770 A GB 969770A GB 969770 A GB969770 A GB 969770A GB 1274346 A GB1274346 A GB 1274346A
Authority
GB
United Kingdom
Prior art keywords
neck
cone
section
cathode
faceplate
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
GB969770A
Inventor
Asahide Tsuneta
Shinichi Sawagata
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 GB1274346A publication Critical patent/GB1274346A/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
    • H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/76—Deflecting by magnetic fields only
    • H01J29/762—Deflecting by magnetic fields only using saddle coils or printed windings
    • 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
    • H01J29/86—Vessels; Containers; Vacuum locks
    • H01J29/861—Vessels or containers characterised by the form or the structure 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
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/86—Vessels and containers
    • H01J2229/8603—Neck or cone portions of the CRT vessel
    • H01J2229/8606—Neck or cone portions of the CRT vessel characterised by the shape
    • H01J2229/8609—Non circular cross-sections

Landscapes

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

1,274,346. Cathode-ray display tubes. TOYO SHIBAURA ELECTRIC CO. Ltd. 27 Feb., 1970 [28 Feb., 1969 (3)], No. 9697/70. Heading H1D. A colour television tube of the shadow mask type, comprising a faceplate joined by a cone to a neck portion, is characterized in that the cross-section of the inner surface of the neck portion is rectangular at least at the part adjacent the cone and is provided with grooves at its comers so that it does not shield the faceplate at wide deflection angles. In one arrangement, Figs. 1-3 (not shown), grooves are formed in the corners of a square neck and extend along the cone. The neck may have a larger cross-section at the front portion than at the rear portion, which may be cylindrical. Alternatively the neck may be of constant cross-section.
GB969770A 1969-02-28 1970-02-27 Cathode-ray tubes Expired GB1274346A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP1763569 1969-02-28
JP1763769 1969-02-28
JP1763669 1969-02-28

Publications (1)

Publication Number Publication Date
GB1274346A true GB1274346A (en) 1972-05-17

Family

ID=27281903

Family Applications (1)

Application Number Title Priority Date Filing Date
GB969770A Expired GB1274346A (en) 1969-02-28 1970-02-27 Cathode-ray tubes

Country Status (3)

Country Link
DE (1) DE2009635A1 (en)
FR (1) FR2033159A5 (en)
GB (1) GB1274346A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3415361B2 (en) * 1996-05-28 2003-06-09 株式会社東芝 Cathode ray tube
TW394967B (en) * 1996-09-30 2000-06-21 Toshiba Corp Kinescope
JP3403005B2 (en) * 1997-06-20 2003-05-06 株式会社東芝 Cathode ray tube device
JP3376260B2 (en) 1997-11-14 2003-02-10 株式会社東芝 Cathode ray tube device

Also Published As

Publication number Publication date
DE2009635A1 (en) 1970-09-10
FR2033159A5 (en) 1970-11-27

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee