GB527843A - Cathode ray tube - Google Patents

Cathode ray tube

Info

Publication number
GB527843A
GB527843A GB12008/39A GB1200839A GB527843A GB 527843 A GB527843 A GB 527843A GB 12008/39 A GB12008/39 A GB 12008/39A GB 1200839 A GB1200839 A GB 1200839A GB 527843 A GB527843 A GB 527843A
Authority
GB
United Kingdom
Prior art keywords
screen
liquid
ray tube
cathode
circulated
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
GB12008/39A
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.)
Loewe Opta GmbH
Original Assignee
Loewe Opta GmbH
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 Loewe Opta GmbH filed Critical Loewe Opta GmbH
Publication of GB527843A publication Critical patent/GB527843A/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
    • H01J29/18—Luminescent screens
    • H01J29/24—Supports for luminescent material
    • 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
    • H01J29/006—Arrangements for eliminating unwanted temperature effects

Landscapes

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

Abstract

527,843. Cathode-ray tubes. RADIOAKT.-GES. D. S. LOEWE. April 21, 1939, No. 12008. Convention date, April 22, 1938. [Class 39 (i)] In a television transmitting-device comprising a cathode-ray tube with a luminescent screen scanned by the beam to furnish a source of light for scanning the object to be transmitted the screen is cooled to regulate the duration of the afterglow. Fig. 1 shows an opaque screen 5, preferably with a backing of copper or other good conductor of heat, over which water is circulated through pipes 7, 8 and a spreading- nozzle 9. When a transparent screen is employed it may form one side of a glass trough containing cooling-liquid. The liquid may be circulated through the trough and over cooling-pipes, or liquid air may be employed. The Specification as open to inspection under Sect. 91 of the Acts describes an air-cooled screen. This subject-matter does not appear in the Specification as accepted.
GB12008/39A 1938-04-22 1939-04-21 Cathode ray tube Expired GB527843A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE527843X 1938-04-22

Publications (1)

Publication Number Publication Date
GB527843A true GB527843A (en) 1940-10-17

Family

ID=6553454

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12008/39A Expired GB527843A (en) 1938-04-22 1939-04-21 Cathode ray tube

Country Status (1)

Country Link
GB (1) GB527843A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2458891A1 (en) * 1979-06-07 1981-01-02 Sony Corp HIGH-BRIGHTNESS CATHODE RAY TUBE APPARATUS
EP0089722A1 (en) * 1982-03-19 1983-09-28 Koninklijke Philips Electronics N.V. Display tube
EP0162972A1 (en) * 1984-06-01 1985-12-04 Philips Patentverwaltung GmbH Projection cathode ray tube

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2458891A1 (en) * 1979-06-07 1981-01-02 Sony Corp HIGH-BRIGHTNESS CATHODE RAY TUBE APPARATUS
EP0089722A1 (en) * 1982-03-19 1983-09-28 Koninklijke Philips Electronics N.V. Display tube
EP0162972A1 (en) * 1984-06-01 1985-12-04 Philips Patentverwaltung GmbH Projection cathode ray tube

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