GB437216A - Improvements in or relating to cathode-ray tubes - Google Patents

Improvements in or relating to cathode-ray tubes

Info

Publication number
GB437216A
GB437216A GB23384/34A GB2338434A GB437216A GB 437216 A GB437216 A GB 437216A GB 23384/34 A GB23384/34 A GB 23384/34A GB 2338434 A GB2338434 A GB 2338434A GB 437216 A GB437216 A GB 437216A
Authority
GB
United Kingdom
Prior art keywords
cathode
ray tubes
relating
aug
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
GB23384/34A
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.)
Robert Bosch Fernsehanlagen GmbH
Original Assignee
Fernseh 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 Fernseh GmbH filed Critical Fernseh GmbH
Publication of GB437216A publication Critical patent/GB437216A/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
    • H01J29/48—Electron guns
    • H01J29/484—Eliminating deleterious effects due to thermal effects, electrical or magnetic fields; Preventing unwanted emission

Abstract

437,216. Cathode-ray tubes. FERNSEH AKT.-GES., Goerzallee, Zehlendorf, Berlin. Aug. 13, 1934, No. 23384. Convention date, Aug. 12, 1933. [Class 39 (i)] One or more electronbombarded electrodes of a cathode-ray tube for television &c., is or are each provided, on one side, with a plurality of cooling projections. In one form, a mask 4 and an anode 5 are provided with screening fins 7 having a truncated conical shape.
GB23384/34A 1933-08-12 1934-08-13 Improvements in or relating to cathode-ray tubes Expired GB437216A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE437216X 1933-08-12

Publications (1)

Publication Number Publication Date
GB437216A true GB437216A (en) 1935-10-25

Family

ID=6506999

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23384/34A Expired GB437216A (en) 1933-08-12 1934-08-13 Improvements in or relating to cathode-ray tubes

Country Status (1)

Country Link
GB (1) GB437216A (en)

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