GB395882A - Improvements in or relating to electric discharge tubes and apparatus incorporating the same - Google Patents

Improvements in or relating to electric discharge tubes and apparatus incorporating the same

Info

Publication number
GB395882A
GB395882A GB23200/32A GB2320032A GB395882A GB 395882 A GB395882 A GB 395882A GB 23200/32 A GB23200/32 A GB 23200/32A GB 2320032 A GB2320032 A GB 2320032A GB 395882 A GB395882 A GB 395882A
Authority
GB
United Kingdom
Prior art keywords
cathode
anode
screen
relating
same
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
GB23200/32A
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Publication of GB395882A publication Critical patent/GB395882A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J3/00—Details of electron-optical or ion-optical arrangements or of ion traps common to two or more basic types of discharge tubes or lamps
    • H01J3/02—Electron guns
    • H01J3/029—Schematic arrangements for beam forming

Abstract

395,882. Cathode-ray and R÷ntgenray tubes. TELEFUNKEN GES. FœR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Aug. 18, 1932, No. 23200. Convention date, Aug. 18, 1931. [Class 39 (i).] A cathode- or R÷ntgen-ray tube has an anode A in the form of an apertured disc, and a screen electrode S between the anode and cathode K for concentrating the beam and consisting of a flat or curved plate or wire mesh with a single opening for the penetration of the anode field to the cathode, the distance a between the cathode and the screen being not more than half the diameter b of its opening. The screen may have an adjustable negative-bias. The anode and screen may both extend almost to the container as shown, or the anode may be of much smaller size than the screen. Concentration mav be assisted by a gas filling.
GB23200/32A 1931-08-18 1932-08-18 Improvements in or relating to electric discharge tubes and apparatus incorporating the same Expired GB395882A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE395882X 1931-08-18

Publications (1)

Publication Number Publication Date
GB395882A true GB395882A (en) 1933-07-27

Family

ID=6396920

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23200/32A Expired GB395882A (en) 1931-08-18 1932-08-18 Improvements in or relating to electric discharge tubes and apparatus incorporating the same

Country Status (2)

Country Link
US (1) US2067330A (en)
GB (1) GB395882A (en)

Also Published As

Publication number Publication date
US2067330A (en) 1937-01-12

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