GB773805A - Television tube grid structure - Google Patents

Television tube grid structure

Info

Publication number
GB773805A
GB773805A GB23522/54A GB2352254A GB773805A GB 773805 A GB773805 A GB 773805A GB 23522/54 A GB23522/54 A GB 23522/54A GB 2352254 A GB2352254 A GB 2352254A GB 773805 A GB773805 A GB 773805A
Authority
GB
United Kingdom
Prior art keywords
wires
wire
aug
metal
ray tubes
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
GB23522/54A
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.)
Chromatic Television Laboratories Inc
Original Assignee
Chromatic Television Laboratories Inc
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 Chromatic Television Laboratories Inc filed Critical Chromatic Television Laboratories Inc
Publication of GB773805A publication Critical patent/GB773805A/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
    • H01J29/80—Arrangements for controlling the ray or beam after passing the main deflection system, e.g. for post-acceleration or post-concentration, for colour switching
    • H01J29/803—Arrangements for controlling the ray or beam after passing the main deflection system, e.g. for post-acceleration or post-concentration, for colour switching for post-acceleration or post-deflection, e.g. for colour switching
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0012—Constructional arrangements
    • H01J2893/0019—Chemical composition and manufacture
    • H01J2893/0022—Manufacture
    • H01J2893/0024—Planar grids

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

773,805. Cathode-ray tubes. CHROMATIC TELEVISION LABORATORIES, Inc. Aug. 13, 1954 [Aug. 24, 1953], No. 23522/54. Class 39(1). Grid structures of parallel wires mounted in cathode ray tubes are made of cold drawn metal wire in which during the bake out of the tube at a temperature below the recrystallization point of the metal the stresses are partially relieved and increase the tautness of the wires. The grid adjacent to the phosphor stripes 20 of a colour tube comprises two sets of wires 22 passing grooves in bars 24 at each end of the target and secured to hooks 28 insulated from each other. The wire is stainless steel hard drawn which will shrink at the bake out temperature 750‹F. Other wire materials and their recovery temperature limits are specified and include carbon steel, nickel, tungsten, molybdenum, copper, silver, gold and metal alloys. Specifications 648,257, 745,180, 745,181, 757,071 and 757,811 are referred to.
GB23522/54A 1953-08-24 1954-08-13 Television tube grid structure Expired GB773805A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US376052A US2813772A (en) 1953-08-24 1953-08-24 Television tube grid structure

Publications (1)

Publication Number Publication Date
GB773805A true GB773805A (en) 1957-05-01

Family

ID=23483504

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23522/54A Expired GB773805A (en) 1953-08-24 1954-08-13 Television tube grid structure

Country Status (7)

Country Link
US (1) US2813772A (en)
BE (1) BE531368A (en)
CH (1) CH324877A (en)
DE (1) DE941917C (en)
FR (1) FR1106643A (en)
GB (1) GB773805A (en)
NL (1) NL190055A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0366055B1 (en) * 1988-10-26 1993-12-29 Matsushita Electric Industrial Co., Ltd. Video display device
DE3843200A1 (en) * 1988-12-22 1990-06-28 Nokia Unterhaltungselektronik CATHODES / CONTROL ARRANGEMENT FOR A FLAT PIPE TUBE AND FRAME FOR SUCH AN ARRANGEMENT
KR100459953B1 (en) * 2001-02-20 2004-12-04 후다바 덴시 고교 가부시키가이샤 Electron tube and method for producing same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1280825A (en) * 1918-05-18 1918-10-08 Gen Electric Process of treating drawn metal.
US2142865A (en) * 1937-03-24 1939-01-03 Gen Electric Method of manufacturing filaments
US2463535A (en) * 1946-03-22 1949-03-08 Bell Telephone Labor Inc Electron discharge device
NL76863C (en) * 1947-06-03
US2653263A (en) * 1952-01-08 1953-09-22 Chromatic Television Lab Inc Color control grid structure for cathode-ray tubes

Also Published As

Publication number Publication date
NL190055A (en)
FR1106643A (en) 1955-12-21
DE941917C (en) 1956-04-19
CH324877A (en) 1957-10-15
BE531368A (en)
US2813772A (en) 1957-11-19

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