GB757810A - Grid structure for television tube - Google Patents

Grid structure for television tube

Info

Publication number
GB757810A
GB757810A GB34863/53A GB3486353A GB757810A GB 757810 A GB757810 A GB 757810A GB 34863/53 A GB34863/53 A GB 34863/53A GB 3486353 A GB3486353 A GB 3486353A GB 757810 A GB757810 A GB 757810A
Authority
GB
United Kingdom
Prior art keywords
screen
wires
supports
slots
glass
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
GB34863/53A
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 GB757810A publication Critical patent/GB757810A/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
    • 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

Landscapes

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

757,810. Colour television tubes. CHROMATIC TELEVISION LABORATORIES, Inc. Dec. 15, 1953 [March 23, 1953], No. 34863/53. Class 39 (1). The electrode structure adjacent the luminescent screen of a cathode-ray tube comprises conducting strands 25 tensioned between supporting elements and located in spaced slots 23 in vitreous supports 21 to give a spacing of the elemental area of the raster. The strands are sealed in the slots either with cement or by a glass to metal seal and are connected to header conductors 27 and 28. The grooves or slots in the supports 21 are cut on a mandrel or formed from photo-sensitive opal glass by exposing to ultra-violet light, heating and immersing in hydrofluoric acid. The supports are affixed to the phosphor screen 15 by fusion or by affixing means such as potassium silicate or solder glass. The wires 25 may be anchored to the screen 15 by attachment to metal rods 33, 35, Fig. 6, sealed to the screen, and the connection of alternate wires to one rod enables different potentials to be applied to two sets of grid wires. Alternatively the wires 25 are welded or brazed to conducting cords held in a vitreous rod fused or otherwise secured to the screen 15. The grid is applicable to either monochrome or additive colour systems. Specifications 648,257, 721,523, 757,071, 757,785, 757,786 and 757,787 are referred to.
GB34863/53A 1953-03-23 1953-12-15 Grid structure for television tube Expired GB757810A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US343834A US2791710A (en) 1953-03-23 1953-03-23 Grid structure for television tube

Publications (1)

Publication Number Publication Date
GB757810A true GB757810A (en) 1956-09-26

Family

ID=23347875

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34863/53A Expired GB757810A (en) 1953-03-23 1953-12-15 Grid structure for television tube

Country Status (6)

Country Link
US (1) US2791710A (en)
BE (1) BE526096A (en)
DE (1) DE1011918B (en)
FR (1) FR1091379A (en)
GB (1) GB757810A (en)
NL (1) NL185725B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2998033A (en) * 1957-02-12 1961-08-29 Sylvania Electric Prod Apparatus for producing cathode ray tubes
BE630956A (en) * 1962-04-18
FR2515422A1 (en) * 1981-10-28 1983-04-29 Hyperelec Positioning method for optical image electron tube grid - uses small spherical glass beads to act as spacing and support elements to maintain close separation distance from sensing crystal
US5085606A (en) * 1989-04-12 1992-02-04 Zenith Electronics Corporation Method of manufacture for post-mask deflection type tension mask color cathode ray tube

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1273630A (en) * 1918-02-20 1918-07-23 Gen Electric Electron-discharge apparatus.
US1465381A (en) * 1918-11-02 1923-08-21 Western Electric Co Electrode and its construction
US1937202A (en) * 1926-07-17 1933-11-28 Union Nat Bank Of Pittsburgh Anticapacity thermionic tube
US2064169A (en) * 1936-01-03 1936-12-15 Sovereing Machinery Company Method of and apparatus for producing radio tube grids
US2338036A (en) * 1941-08-08 1943-12-28 Bell Telephone Labor Inc Cathode ray device
US2463535A (en) * 1946-03-22 1949-03-08 Bell Telephone Labor Inc Electron discharge device
US2535307A (en) * 1946-04-05 1950-12-26 Philco Corp Grid-controlled electron tube
US2446791A (en) * 1946-06-11 1948-08-10 Rca Corp Color television tube
US2568448A (en) * 1947-09-23 1951-09-18 Gen Electric Parallax correction in color television
US2549551A (en) * 1948-01-15 1951-04-17 Bell Telephone Labor Inc Grid electrode structure and manufacturing method therefor
DE820614C (en) * 1950-01-14 1951-11-29 Siemens & Halske A G Electron tubes, especially for very short waves
US2701847A (en) * 1951-10-02 1955-02-08 Machlett Lab Inc Color television tube structure
US2695372A (en) * 1951-10-23 1954-11-23 Chromatic Television Lab Inc Grid structure for cathode-ray tubes
US2653263A (en) * 1952-01-08 1953-09-22 Chromatic Television Lab Inc Color control grid structure for cathode-ray tubes
US2683833A (en) * 1952-09-02 1954-07-13 Chromatic Television Lab Inc Electrode structure
US2738436A (en) * 1952-09-02 1956-03-13 Chromatic Television Lab Inc Electrode structure

Also Published As

Publication number Publication date
FR1091379A (en) 1955-04-12
BE526096A (en)
NL185725B (en)
US2791710A (en) 1957-05-07
DE1011918B (en) 1957-07-11

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