GB471137A - Improvements relating to mesh screens for use in television or like transmitting tubes - Google Patents

Improvements relating to mesh screens for use in television or like transmitting tubes

Info

Publication number
GB471137A
GB471137A GB20476/36A GB2047636A GB471137A GB 471137 A GB471137 A GB 471137A GB 20476/36 A GB20476/36 A GB 20476/36A GB 2047636 A GB2047636 A GB 2047636A GB 471137 A GB471137 A GB 471137A
Authority
GB
United Kingdom
Prior art keywords
grid
apertures
film
television
conducting
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
GB20476/36A
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph 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 Marconis Wireless Telegraph Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Publication of GB471137A publication Critical patent/GB471137A/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
    • H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/36—Photoelectric screens; Charge-storage screens
    • H01J29/39—Charge-storage screens
    • H01J29/43—Charge-storage screens using photo-emissive mosaic, e.g. for orthicon, for iconoscope
    • H01J29/435—Charge-storage screens using photo-emissive mosaic, e.g. for orthicon, for iconoscope with a matrix of conductors traversing the target

Abstract

A mosaic screen for cathode-ray tubes, more particularly for television, comprises an electrically-conducting grid coated on at least one side with insulating material, a second conducting grid mounted on the insulating coating in such manner that the p apertures in the grids are in alignment, and electrically conducting mosaic elements which are mounted on and insulated from the first grid in such manner that they close the apertures in the first grid but do not extend within the apertures of the second grid. A grid coated with insulating enamel is lowered, on a frame, into a tank of water on which is floated a film of platinum chloride dissolved in lavender oil. The grid is then raised horizontally so that the film is deposited on one side thereof; air is blown from the uncoated side through the apertures in the grid to remove parts of the film which may close them. The film is reduced by heat to form the second grid. Specifications 447,819 and 471,109, [both in Group XL], are referred to.
GB20476/36A 1935-01-30 1936-01-27 Improvements relating to mesh screens for use in television or like transmitting tubes Expired GB471137A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4023A US2149977A (en) 1935-01-30 1935-01-30 Television transmitting tube

Publications (1)

Publication Number Publication Date
GB471137A true GB471137A (en) 1937-08-27

Family

ID=21708752

Family Applications (3)

Application Number Title Priority Date Filing Date
GB20476/36A Expired GB471137A (en) 1935-01-30 1936-01-27 Improvements relating to mesh screens for use in television or like transmitting tubes
GB22354/37A Expired GB471149A (en) 1935-01-30 1936-01-27 Improvements relating to television or like transmitting tubes
GB2585/36A Expired GB471109A (en) 1935-01-30 1936-01-27 Improvements relating to mesh screens for use in television or like transmitting tubes

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB22354/37A Expired GB471149A (en) 1935-01-30 1936-01-27 Improvements relating to television or like transmitting tubes
GB2585/36A Expired GB471109A (en) 1935-01-30 1936-01-27 Improvements relating to mesh screens for use in television or like transmitting tubes

Country Status (4)

Country Link
US (1) US2149977A (en)
FR (1) FR801014A (en)
GB (3) GB471137A (en)
NL (1) NL45434C (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2429933A (en) * 1945-08-08 1947-10-28 Western Electric Co Image translating device
US2588019A (en) * 1946-06-05 1952-03-04 Rca Corp Monoscope target for pickup tubes
US2493539A (en) * 1946-06-13 1950-01-03 Rca Corp Target for pickup tubes
US2641553A (en) * 1948-12-29 1953-06-09 Bell Telephone Labor Inc Preparation of two-sided mosaic
US2667596A (en) * 1950-11-15 1954-01-26 Rauland Corp Storage electrode for signal-converting devices
US2699511A (en) * 1951-05-04 1955-01-11 Sheldon Edward Emanuel Storage tube for invisible radiation
US2839679A (en) * 1952-05-16 1958-06-17 Franklin H Harris Half-tone memory tube
US2788466A (en) * 1952-07-17 1957-04-09 Hughes Aircraft Co Direct-viewing storage tube
US3013178A (en) * 1953-03-23 1961-12-12 Fairchild Camera Instr Co Focussing mask for cathode ray tube
US2926419A (en) * 1957-05-01 1960-03-01 Franklin H Harris Method of forming a storage electrode
US3164749A (en) * 1961-02-13 1965-01-05 Ibm Electronic component packaging
US3696741A (en) * 1969-12-03 1972-10-10 George W Reinke Foraminous printing screen
US4357368A (en) * 1978-12-26 1982-11-02 Rca Corporation Method of making a photosensitive electrode and a photosensitive electrode made thereby

Also Published As

Publication number Publication date
US2149977A (en) 1939-03-07
GB471149A (en) 1937-08-27
NL45434C (en)
FR801014A (en) 1936-07-25
GB471109A (en) 1937-08-27

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