GB812805A - Cathode ray tube - Google Patents

Cathode ray tube

Info

Publication number
GB812805A
GB812805A GB6063/57A GB606357A GB812805A GB 812805 A GB812805 A GB 812805A GB 6063/57 A GB6063/57 A GB 6063/57A GB 606357 A GB606357 A GB 606357A GB 812805 A GB812805 A GB 812805A
Authority
GB
United Kingdom
Prior art keywords
layer
electroluminescent
activated
ray tube
cathode ray
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
GB6063/57A
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.)
Egyesuelt Izzolampa es Villamossagi Rt
Original Assignee
Egyesuelt Izzolampa es Villamossagi Rt
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 Egyesuelt Izzolampa es Villamossagi Rt filed Critical Egyesuelt Izzolampa es Villamossagi Rt
Publication of GB812805A publication Critical patent/GB812805A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • 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
    • H01J29/18—Luminescent screens
    • H01J29/182—Luminescent screens acting upon the lighting-up of the luminescent material other than by the composition of the luminescent material, e.g. by infra red or UV radiation, heating or electric fields

Landscapes

  • Radiation-Therapy Devices (AREA)

Abstract

812,805. Electroluminescent screens. EGYESULT IZZOLAMPA ES VILLAMOSSAGI R.T. Feb. 22, 1957 [Feb. 22, 1956], No. 6063/57. Addition to 809,914. Class 39(1). A cathode ray tube is provided with a screen comprising a first transparent conducting coating 2, two electroluminescent layers 4, 5 and a second conducting coating 3, the electroluminescent layer 4 when impacted by electrons producing a short wavelength light capable of exciting the electroluminescent layer 3, the required field being applied to layers 2, 3 by leads 6, 7. The layer 4 may be zinc sulphide activated by silver, calcium tungstate activated by lead and cerium or a halophosphate activated by antimony. The layer 3 is preferably zinc sulphide activated by copper the thickness of each layer 2-5 may vary from 2 to 20 microns.
GB6063/57A 1956-02-22 1957-02-22 Cathode ray tube Expired GB812805A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU812805X 1956-02-22

Publications (1)

Publication Number Publication Date
GB812805A true GB812805A (en) 1959-04-29

Family

ID=10980439

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6063/57A Expired GB812805A (en) 1956-02-22 1957-02-22 Cathode ray tube

Country Status (1)

Country Link
GB (1) GB812805A (en)

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