US2396014A - Electron gun structure - Google Patents

Electron gun structure Download PDF

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Publication number
US2396014A
US2396014A US508324A US50832443A US2396014A US 2396014 A US2396014 A US 2396014A US 508324 A US508324 A US 508324A US 50832443 A US50832443 A US 50832443A US 2396014 A US2396014 A US 2396014A
Authority
US
United States
Prior art keywords
conductors
pair
pairs
discs
rods
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 - Lifetime
Application number
US508324A
Other languages
English (en)
Inventor
Stanley J Koch
Joseph H Robillard
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.)
Allen B du Mont Laboratories Inc
Original Assignee
Allen B du Mont Laboratories 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
Priority to BE471637D priority Critical patent/BE471637A/xx
Application filed by Allen B du Mont Laboratories Inc filed Critical Allen B du Mont Laboratories Inc
Priority to US508324A priority patent/US2396014A/en
Priority to GB21024/44A priority patent/GB585190A/en
Application granted granted Critical
Publication of US2396014A publication Critical patent/US2396014A/en
Priority to FR938209D priority patent/FR938209A/fr
Priority to CH269630D priority patent/CH269630A/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/78—Tubes with electron stream modulated by deflection in a resonator
    • 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
    • H01J29/82—Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements

Definitions

  • This invention relates to' an electron gun and particularly to the waytheelectrical connections to the electrodes thereof are-made.”
  • electrical connection is made. to one pair of deflecting plates through two pairs of spaced conductors mounted in insulating discs and to-the "other pair of such plates through two other pairs of spaced conductors-spaced from v .the first pair.
  • the conductors are spaced sufficiently far apart to avoid danger 'of leakage between the conductors.
  • Fig. 1 is a side view
  • Fig. 2 is a side view at right angles to Fig. 1;
  • Fig. 3 is a section along the line 33 of Fig. 1;
  • Fig. 4 is a section along the line 44 of Fig. 1.
  • reference characters I and 2 indicate mica discs, and reference characters 3 and 4 indicate metal rods connected near their ends to said discs. Tubes 5 and 6 of ceramic material surround said rods between said discs.
  • a cathode support I, a grid 8, a pre-accelerat ing anode 9, a first anode Ill, and a second anode II are connected by extensions or straps I 2 that are integral with the elements I to II onopposite sides thereof so that they may be attached in fixed positions to the tubes 5 and 6 and properly spaced from each other.
  • Pairs of metal rod supports I4, I4 and I5, I5 are anchored in eyelets I6 and I! (Fig. 1) located in holes through a mica disc I' with their upper ends rigidly secured to the lower edges of deflection plates I8 and Iii by metal straps 20 and 2I spot-welded to these plates. Similar pairs of shorter metal 'rods 22, 22' and 23, 23' are anchored in the disc I in the same way to support a pair of deflection plates 24, 25 in like manner.
  • the pairs 01 supporting rods I4, I4, I5, I5, 22, 22', and 23, 23' have their upper ends anchored in metal eyelets fixed in place in the mica dis'c 26 which is smaller than disc 2
  • Discs I and 26 have spaced projections 21 with slots 28 therethrough for receiving anchoring projections that are on thin mica strips 29 and similar thin spring steel strips 30 in the known way to keep these strips in place so that the ends thereofwill b'e'prssed against the layer '0': conducting material that is provided on the inside surface or the neck of the g-lass'tube in which the device is to be'installed.
  • Metal rods 32,33 are anchored in metal eyelets in the discs I' and 2, the rod 32 being connected on'one side of mica disc I by lead 34 to rod 22.
  • the rod 33 is connectedby lead 35 on the other side of this disc to the rod 22', thus providing for application of deflecting potentials to the plates 24 and 25.
  • the lower ends of these rods 32 and 33 are connected in the usual way to outside deflection potentials.
  • the metal rods 36 and 31 are similarly connected by leads 38 and 39, respectively, to the metal rods I5 and I5, thus providing for application of deflecting potentials to the plates I8 and I9 with the mica disc I between the leads 34 and 35.
  • the middle rod 40 is connected by lead 4
  • This rod 40 is also connected by lead 42 (Fig. l) to the pro-accelerating electrode 9.
  • the other metal strips 30 are connected by leads 4
  • Connections are made from sources of proper potentials to pairs of rods 32, 33 and 36, 31 from deflection potential sources and to the rod 40 for high potential for the second anode.
  • Other terminals are anchored in the eyelets 45, 46 and 41, from which leads 48, 49 and 50 extend to the cathode supporting ring 1, grid 8, and first anode I0, respectively.
  • Leads 5! and 52 extend from other eyelets 53 and 54 in disc 2 (Figs. 3 and 4) to the terminals 55 of the heater strip for the cathode 56 which is located inside the grid 8.
  • An electron gun comprising discs of insulating material, diametrically opposite metal rods having their ends anchored in said discs, insulating material around said rods, electrodes supported on said insulating material, a pair of conductors with their ends connected to said discs, a pair 01 deflection plates supported on conductprs attached to the upper one of said discs, and leads on opposite sides 01' said upper disc extending from the respective conductors of said pair of conductors to two of said attached conductors, respectively.
  • a second pair of deflection plates, a second pair 01 conductors, and a second pair 0! leads on opposite sides of said upper disc are provided with a conductor attached to said discs and located between said pairs of conductors, an anode in said gun to which the highest potential is to be applied and also to a pre-accelerating electrode, said last named conductor being connected to said anode.
  • An electron gun having all of its conductors to which high potential is to be applied located on one side of a longitudinal plane passing through the center of said gun.
  • An electron gun having all of its conductors and the leads thereto to which high potential is to be applied located on one side of a longitudinal plane passing through the center of said 1'7.
  • An electron gun having all of its conductors and the leads thereto and therefrom to which high potential is to be applied located on one side of a longitudinal plane passing through the center of said gun.
  • An electron gun having all of its conductors to which high potential is to be applied located on one side of a longitudinal plane passing through the center of said gun and all of its conductors to which low potential is to be applied located on the other side of said plane.
  • An electron gun having all of its conductors to which high potential is to be applied located on one side of a longitudinal plane passing through the center of said gun, leads connected to said conductors and mica between said conductors wherever they cross each other.

Landscapes

  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
  • Electron Sources, Ion Sources (AREA)
US508324A 1943-10-30 1943-10-30 Electron gun structure Expired - Lifetime US2396014A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE471637D BE471637A (enrdf_load_stackoverflow) 1943-10-30
US508324A US2396014A (en) 1943-10-30 1943-10-30 Electron gun structure
GB21024/44A GB585190A (en) 1943-10-30 1944-10-27 Electron gun structures
FR938209D FR938209A (fr) 1943-10-30 1946-04-01 Tubes à rayons cathodiques et analogues
CH269630D CH269630A (fr) 1943-10-30 1946-07-13 Canon à électrons pour tubes à rayons cathodiques.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US508324A US2396014A (en) 1943-10-30 1943-10-30 Electron gun structure

Publications (1)

Publication Number Publication Date
US2396014A true US2396014A (en) 1946-03-05

Family

ID=24022295

Family Applications (1)

Application Number Title Priority Date Filing Date
US508324A Expired - Lifetime US2396014A (en) 1943-10-30 1943-10-30 Electron gun structure

Country Status (5)

Country Link
US (1) US2396014A (enrdf_load_stackoverflow)
BE (1) BE471637A (enrdf_load_stackoverflow)
CH (1) CH269630A (enrdf_load_stackoverflow)
FR (1) FR938209A (enrdf_load_stackoverflow)
GB (1) GB585190A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
CH269630A (fr) 1950-07-15
BE471637A (enrdf_load_stackoverflow)
GB585190A (en) 1947-01-31
FR938209A (fr) 1948-09-08

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