GB723504A - Improvements in or relating to electron discharge devices - Google Patents

Improvements in or relating to electron discharge devices

Info

Publication number
GB723504A
GB723504A GB28769/52A GB2876952A GB723504A GB 723504 A GB723504 A GB 723504A GB 28769/52 A GB28769/52 A GB 28769/52A GB 2876952 A GB2876952 A GB 2876952A GB 723504 A GB723504 A GB 723504A
Authority
GB
United Kingdom
Prior art keywords
electrode
cathode
electron
plates
accelerating
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
GB28769/52A
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB723504A publication Critical patent/GB723504A/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
    • H01J29/54—Arrangements for centring ray or beam
    • 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
    • H01J29/70—Arrangements for deflecting ray or beam
    • H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/74—Deflecting by electric fields only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/02—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused
    • H01J31/06—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused with more than two output electrodes, e.g. for multiple switching or counting

Landscapes

  • Electron Beam Exposure (AREA)
  • Electron Sources, Ion Sources (AREA)
  • Microwave Tubes (AREA)
  • Particle Accelerators (AREA)

Abstract

723,504. Electron beam apparatus. WESTERN ELECTRIC CO., Inc. Nov. 14, 1952 [Nov. 20, 1951], No. 28769/52. Class 39 (1). An electron beam tube such as a coder tube for pulse code modulation, is provided with means for producing an electric field graduated in intensity, in the case of a flat beam, from a minimum at one edge to a maximum at the other edge of the beam, or in the case of a point beam, from one end to the other of the path over which the beam can be moved, so that the flat beam, or the beam path, can be aligned with a desired direction across the target structure. In the flat beam coder tube of Fig. 5, a pair of tilted plates 48, 49 between the gun 22 and the signal plates 50, 51, deflect and rotate the beam. The deflection may be cancelled out by applying a bias voltage to the plates 50, 51, or by providing a pair of opposition tilted plates, The beam is aligned with the aperture rows in the coding plate 57, behind which are the collecting strips 581-4. The electron gun may comprise a cathode, a control electrode, a focusing electrode, and a plurality of accelerating electrodes, a masking electrode having a beam limiting aperture being positioned in a field free space between two of the accelerating electrodes. The collecting strips 581-4 may be secondary emissive and negatively biased with respect to the coding plate 57. A hollow secondary electron collecting electrode is provided in front of the coding plate. The collecting strips may be non-secondary emissive, and positively biased to suppress secondary emission. The cathode 23, Fig. 4, and accelerating electrode 24, are assembled together with the aid of insulating spacers 37, 38, 39, within a shell 33. Cathode flange 41 is between spacers 37 and 38. The assembly is pressed against the accelerating electrode 25 by bent-up portions of a member 34 bearing against cathode heat baffle 36. The shell 33 and the electrode 25 are secured to the support rods 19 by clips 31, the insulating coating 20, on the rods 19, and by cement 21. Specifications 663,838; 663,872 and 679,730 are referred to.
GB28769/52A 1951-11-20 1952-11-14 Improvements in or relating to electron discharge devices Expired GB723504A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US257365A US2713650A (en) 1951-11-20 1951-11-20 Electron discharge devices

Publications (1)

Publication Number Publication Date
GB723504A true GB723504A (en) 1955-02-09

Family

ID=22976011

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28769/52A Expired GB723504A (en) 1951-11-20 1952-11-14 Improvements in or relating to electron discharge devices

Country Status (6)

Country Link
US (1) US2713650A (en)
BE (1) BE514761A (en)
DE (1) DE1040137B (en)
FR (1) FR1060925A (en)
GB (1) GB723504A (en)
NL (2) NL89030C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2843784A (en) * 1955-05-26 1958-07-15 Sylvania Electric Prod Support for stacked electrode assembly
US2899577A (en) * 1957-03-27 1959-08-11 Electron discharge device
US2971120A (en) * 1959-11-04 1961-02-07 Edward L Schiavone Switching device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1870975A (en) * 1928-09-11 1932-08-09 Westinghouse Lamp Co Cathode ray oscillograph
US2103645A (en) * 1932-12-20 1937-12-28 Schlesinger Kurt Braun tube
US2163233A (en) * 1935-08-02 1939-06-20 Jesse E Brown Cathode ray tube
US2182382A (en) * 1936-10-29 1939-12-05 Radio Patents Corp Cathode ray device
DE677606C (en) * 1936-10-29 1939-07-01 Habil Hans Erich Hollmann Dr I Cathode ray tubes, the beam of which is proportionally displaced parallel to the measuring voltage or the measuring current between opposing deflection systems and bent back in its original axial direction
US2244748A (en) * 1937-06-26 1941-06-10 Rca Corp Radio direction finding receiver
US2240304A (en) * 1938-07-30 1941-04-29 Rca Corp Measuring and indicating instrument
US2404106A (en) * 1943-08-13 1946-07-16 Rca Corp Electronic calculating device
US2455771A (en) * 1944-10-28 1948-12-07 Rca Corp Centering means for cathode-ray deflecting circuits
BE488646A (en) * 1948-07-03
NL76624C (en) * 1948-09-30

Also Published As

Publication number Publication date
US2713650A (en) 1955-07-19
FR1060925A (en) 1954-04-07
NL172336B (en)
DE1040137B (en) 1958-10-02
NL89030C (en)
BE514761A (en)

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