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US2876374A - Electronic tube structures - Google Patents

Electronic tube structures Download PDF

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Publication number
US2876374A
US2876374A US500430A US50043055A US2876374A US 2876374 A US2876374 A US 2876374A US 500430 A US500430 A US 500430A US 50043055 A US50043055 A US 50043055A US 2876374 A US2876374 A US 2876374A
Authority
US
United States
Prior art keywords
plate
cathode
plates
anode
stack
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
US500430A
Other languages
English (en)
Inventor
Theodore K Riggen
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.)
Corning Glass Works
Original Assignee
Corning Glass Works
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 BE546906D priority Critical patent/BE546906A/xx
Application filed by Corning Glass Works filed Critical Corning Glass Works
Priority to US500430A priority patent/US2876374A/en
Priority to GB10603/56A priority patent/GB808292A/en
Priority to DEC12846A priority patent/DE1077791B/de
Priority to CH344488D priority patent/CH344488A/fr
Application granted granted Critical
Publication of US2876374A publication Critical patent/US2876374A/en
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
    • H01J21/00—Vacuum tubes
    • H01J21/36—Tubes with flat electrodes, e.g. disc electrode
    • 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
    • H01J29/467—Control electrodes for flat display tubes, e.g. of the type covered by group H01J31/123
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
    • H01J31/14—Magic-eye or analogous tuning indicators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J40/00—Photoelectric discharge tubes not involving the ionisation of a gas
    • H01J40/16—Photoelectric discharge tubes not involving the ionisation of a gas having photo- emissive cathode, e.g. alkaline photoelectric cell

Definitions

  • This invention relates to electronic tubes of extremely small size, and more particularly to a design for such tubes that lends itself well to multiple tube elements as a single manufactured piece.
  • Electron tubes as currently being produced, consist of small metallic parts (usually welded together) encapsulated in a hermetically sealed container. The minimum sizes in which they can be made is dictated by the sub-assembly of the metallic parts and the physical handling thereof. The inability to multiplex these units is inherent in their individual encapsulation.
  • the present invention avoids both these parameters by the nature of its design which can best be understood by referring to the accompanying drawings wherein:
  • Figure 1 shows an exploded view, in perspective, of a single diode built on the principles of the present invention.
  • Figure 2 is an exploded view, in perspective, of a triode of the same design.
  • Figure 3 is an exploded view, in perspective, of a grid controlled indicator tube of like design.
  • Figure 4 is a cut-away view of a multiple element array of indicator tubes with dual grids for control.
  • Figure 4a is a circuit diagram applied to elements of the structural arrangement of Figure 4.
  • Figure 5 is a cross-sectional view of the unit shown in Figure 2, assembled.
  • Figure 6 is an application of the triode of Figures 2 and S to a common type of resistor-coupled amplifier circuit, with the supports for the several elements of such triode omitted to simplify the showing;
  • Figure 7 shows a circuit, similar to that of Figure 6, employing a conventional triode.
  • 11 is a supporting member of some stable insulating material such as glass; 12 is an electron emissive coat on the fore face of 11.
  • This may be a semi-transparent photoemissive coat adapted to receive exciting light through support 11 from the opposite side thereof; it may be a thermo-emissive coat adapted to receive infra-red radiation through the supporting member; or it may be thermoemissive, heated by aiesistance coat (not shown), on the same face of the support.
  • a conducting foil, 13, is atfixed to the electron emissive coat and acts as the cathode connection of the diode.
  • a spacer plate 14 separates the cathode 12 from an anode supporting plate 16 the desired distance.
  • a hole 15 in plate 14 allows electrons from cathode 12, to pass to an anode 17, which is sealed in plate 16.
  • Atent ice Plate 28 has a hole 29 in register with a hole in plate 24, and bears foil 20 which surrounds hole 29 and extends beyond an edge of plate 28.
  • Foil 20 when held at a negative potential, acts as a gate, or grid, to regulate the number of electrons passing from the cathode 22, to an anode 27 supported by a plate 26, similar to plate 16.
  • triode is obtained.
  • a second member similar to that formed by elements 20, 28 and 29 could yield tetrode action, etc., as will be understood by those familiar with the construction and operation of electron valves or tubes.
  • a plate 36 which bears a fluorescent powder coating 32 on the side next to a plate 34, replaces the plate 26 of Figure 2.
  • This coating is of the conducting type and connection'to it is made through a foil 33.
  • Elements 31, 34 and 38 are like the elements 21, 24 and 28 of Figure 2.
  • Figure .5 (Sheet 1) the unit shown exploded in Figure 2 is illustrated assembled, and has its corresponding elements designated likewise. This is, then, indicative of the other embodiments of the present invention in assembled form whether they be of the single or multiplex type.
  • a material such for example as solder glass 50 has been added to seal the lines of juncture of the several plates together after evacuation.
  • the respective plates may, however, be directly sealed to one another providing the dielectric material used has a low enough softening temperature to enable the sealing of their adjoining-surfaces to one another without harm to the coatings thereon.
  • FIG. 6 For a comparison of a co ventional circuit employing a tlide tube embodying the invention with a tube of conventional form, reference is had to Figures 6 and 7.
  • a light source L powered by a battery 6A exciters the photo cathode 22.
  • a heater H In Figure 7 a heater H,
  • a battery 7A excites the therrno-emissive cathode K.
  • a battery 63 through a load resistor, 6R2, maintains the anode 27 at a positive potential with respect to the cathode.
  • a battery 73 through a load resistor 7R2, eflects the anode P in a similar fashion.
  • a battery 6C through a resiSiO F 6R1, maintains the grid 20 at some optimum negative bias with respect to the cathode.
  • a battery 7C through a resistor 7R1, effects the grid G in a similar fashion. Now, if an A. C. voltage signal be impressed across the input points, GIN or 7IN, and read across the output points, 6OUT or 7OUT, it will have been amplified by the gain of the system.
  • the gain of the system is, in part, a function of the potentials applied, the component values used, the geometry of the triode and the emissive ability of the cathode in the triode.
  • the geometry of the new design tube may be altered by changing the size of the holes, by expanding the inner endof the anode wire to a disc equal to the hole size, and by regulating the thickness of the grid supporting and spacer plates.
  • the grid supporting plate having a single hole may be replaced with one having a group of small holes with but a single foil surrounding and interconnecting them, so that the portion of the plate bridging adjacent holes in the grid will serve as a mechanical support for the large area of the adjacent cathode plate during evacuation and sealing of the unit.
  • the holes in plates 41, 48 and 414 are in line to'allow electrons emitted by the cathode 412 to pass through to the fluorescent anode 42 on the inner side of plate 46.
  • the strip grid connections or foils 410 and 416 are continued past their supporting plates 48 and 414 in a fashion similar to the single unit grid 28 in Figure 2.
  • This multi-element unit can be used for the selective display of several indicator spot signals. Similarly such a unit employing individual anodes, such as 27, may .be employed in selective control circuits as hereinafter described.
  • plate 414 has a bank of forty-nine holes divided into seven rows of seven holes each, with its grids 416 horizontally connected.
  • Each row of grids 416 is normally held sufficiently negative with respect to the cathode 412 ( Figure 4) to prohibit the passing of electrons from the electronemissive coating 412 on plate 41, by negative potential supplied to it through the back contacts of a push button, such as B1, of the group B1B7.
  • plate 48 has its grids 410 vertically connected in seven rows nega tively biased through break contacts of push buttons B8-B14.
  • any one or more .of the push buttons of the respective push button groups may be operated to selectively remove the negative bias from any row or rows of holes in either of the multi-element grid plates 48 and 414 to permit electrons to pass through the particular holes in register with one another and from which the grid bias has been removed.
  • buttons B1 and B8 are depressed electrons will be permitted to pass through holes X and Y, and when they strike the anode or fluorescent coating 42, the spot or spots on the anode opposite such holes will fluoresce and thus give an indication of the vertical and horizontal row or rows of grids thatare not biased down.
  • the showing of the grid control circuits as passing through push buttons is for simple illustrative purposes only. As is well known, there are numerous ways in which the grid bias can be removed in any desired combination to selectively give a number of different indications limited only by the number of separate electronic tube units embodied in the assembly.
  • the multiplexing mayemploy individual anodes, such as 27, and follow a pattern in conformance with a desired specific circuit control need.
  • the unit may contain a single row of cells arranged to register with the holes in a teletype-writer tape so that light passing through the tape holes selectively activates the cells as it passes thereover to selectively energize printer control relays of the system.
  • a further alternative arrangement may embody both the individual anodes such as 27 and a fluorescent coating such as 42, to give a visual signal of the circuit control being exercised.
  • the several plates of dielectric material of the-assembly may be utilized as the supports for simple printed circuits in which such cells may be included.
  • An electronic tube comprising a stack of plates of insulating material one outer plate of such stack having on its inner surface a cathode comprising a coating of an electron emissive material, said coating having a lead conductor connected thereto and extending laterally therefrom, the oppositely disposed end plate having an anode exposed on the opposite broad surface thereof, and an intermediate plate of said stack spacing the anode and cathode a predetermined distance from one another, said intermediate plate having a passage therethrough providing a path for the flow of electrons between the cathode and the anode.
  • an electronic tube such as defined by claim 1, wherein the stack includes an electron gate comprising a plate of electric insulaitng material arranged between the cathode and the intermediate plate and having a passage therethrough in register with the intermediate plate passage, said electron gate plate having on the side thereof facing said intermediate plate a conductor bordering its passage and extending beyond the edge of such plate to make it available for the receipt of a negative potential to regulate the number of electrons that are permitted to pass between the cathode and the anode.
  • an electron gate comprising a plate of electric insulaitng material arranged between the cathode and the intermediate plate and having a passage therethrough in register with the intermediate plate passage, said electron gate plate having on the side thereof facing said intermediate plate a conductor bordering its passage and extending beyond the edge of such plate to make it available for the receipt of a negative potential to regulate the number of electrons that are permitted to pass between the cathode and the anode.
  • An electronic tube such as defined by claim 3 wherein the stack includes. a plate interposed between the first defined end plate and said spacer plate having a layer of conductive material thereon surrounding a passage therethrough in register with the spacer plate passage on the side adjacent the spacer plate, said conductive material extending from the edge of such plate to make it available for the receipt of a negative potential to regulate the number of electrons that are permitted to pass between the coated surfaces of the end plates of the stack.
  • An electronic device including plates of an electrical insulating material forming the opposite end plates of a stack thereof, one of said end plates having a cathode comprising a semi-transparent photo-emissive coating on its inner surface, the other ,end plate having an anode on ts inner surface comprising a fluorescent coating, a spacer plate included in said stack, two electron gate supporting plates arranged adjacent one another between said spacer plate and one of the end plates, said spacer plate and said electron supporting gate plates having a plurality of apertures in register with one another and providing a number of separate electron paths between said end plates, and means for selectively controlling the flow of electrons through such passages to excite corresponding surface areas of the anode.
  • a stack of flat plates of an electrical insulating material hermetically sealed together a cathode arranged on the inner surface of one end plate of such stack, an anode supported by the opposite end plate of the stack, and a spacer plate between said end plates having an aperture providing an electron path between said end plates.
  • a plate of an electrical insulating material having on one broad surface a cathode coating, a second plate having a pocket in a broad surface thereof opposite said cathode coating, and an anode passing through the latter plate having an end terminating Within said pocket short of its entrance.
  • An electronic device including plates of an electrical insulating material forming the opposite end plates of a stack thereof, one of said end plates having a cathode comprising a semi-transparent photo-emissive coating on its inner surface, a plurality of anodes supported by said other end plate, a spacer plate included in said stack, two electron gate supporting plates arranged adjacent one another between said spacer plate and one of the end plates,
  • said spacer plate and said electron supporting gate plates each having a plurality of apertures in register with one another and in register with said anodes providing a number of separate electron paths between said first end plate and said anodes, and means for selectively .controlling the flow of electrons through such passages to selectively excite difierent ones of said anodes.
  • An electronic device such as defined by claim 9, wherein said other end plate is also provided with a fluorescent coating which fluoresces in the region surrounding the excited anode or anodes to visually indicate the selection made.
  • An electronic tube such as defined by claim 1 wherein the respective plates of the stack have oppositely disposed flat parallel surfaces in engagement with one another and have border outlines in the same vertical planes, and a layer of material bridging the respective layers of the stack and sealing the regions thereof surrounded by such material and between the inner surfaces of the end plates thereof to atmosphere.

Landscapes

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Discharge Lamp (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
US500430A 1955-04-11 1955-04-11 Electronic tube structures Expired - Lifetime US2876374A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE546906D BE546906A (el) 1955-04-11
US500430A US2876374A (en) 1955-04-11 1955-04-11 Electronic tube structures
GB10603/56A GB808292A (en) 1955-04-11 1956-04-06 Electronic tube structure
DEC12846A DE1077791B (de) 1955-04-11 1956-04-09 Elektronenroehre, die zur Bildung von Elektroden mit UEberzuegen versehene Plattenkoerper aus elektrisch isolierendem Material aufweist
CH344488D CH344488A (fr) 1955-04-11 1956-04-11 Dispositif à émission électronique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US500430A US2876374A (en) 1955-04-11 1955-04-11 Electronic tube structures

Publications (1)

Publication Number Publication Date
US2876374A true US2876374A (en) 1959-03-03

Family

ID=23989383

Family Applications (1)

Application Number Title Priority Date Filing Date
US500430A Expired - Lifetime US2876374A (en) 1955-04-11 1955-04-11 Electronic tube structures

Country Status (5)

Country Link
US (1) US2876374A (el)
BE (1) BE546906A (el)
CH (1) CH344488A (el)
DE (1) DE1077791B (el)
GB (1) GB808292A (el)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2967965A (en) * 1958-06-02 1961-01-10 Rca Corp Luminous display panel
US3066236A (en) * 1958-05-14 1962-11-27 Int Standard Electric Corp Electron discharge devices
US3153167A (en) * 1960-08-10 1964-10-13 Sylvania Electric Prod Electroluminescent devices with improved electrical contacts
US3262010A (en) * 1960-08-31 1966-07-19 Hughes Aircraft Co Electrical display apparatus incorpolrating electroluminescent and gas discharge devices
DE1233496B (de) * 1963-05-28 1967-02-02 Hitachi Ltd Elektrodenanordnung fuer elektrische Entladungsgeraete mit mehreren ebenen Elektroden
US3317771A (en) * 1963-10-31 1967-05-02 Varian Associates Photo-emissive electron device
US3648093A (en) * 1969-12-11 1972-03-07 Burroughs Corp Display panel with novel cathode assembly
US4100454A (en) * 1975-06-07 1978-07-11 Dai Nippon Toryo Co., Ltd. Low-velocity electron excited fluorescent display device
US4158210A (en) * 1977-09-13 1979-06-12 Matsushita Electric Industrial Co., Ltd. Picture image display device
US4176297A (en) * 1976-10-26 1979-11-27 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence Ultra violet initiated gas discharge visual display matrix
US4504766A (en) * 1981-08-25 1985-03-12 Murata Manufacturing Co., Ltd. Chip type discharge element with laminated insulating sheets

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1211725B (de) * 1963-09-27 1966-03-03 Telefunken Patent Indirekt geheizte Kathode fuer eine elektrische Entladungsroehre
DE1232272B (de) * 1964-02-13 1967-01-12 Telefunken Patent Scheibenfoermiges Gitter fuer Elektronenstrahlroehren

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2099531A (en) * 1935-11-15 1937-11-16 Telefunken Gmbh Electron discharge device
US2297492A (en) * 1939-12-16 1942-09-29 Michaelis Gunter Electrical discharge device
US2449493A (en) * 1947-08-28 1948-09-14 Westinghouse Electric Corp Attaining high vacuum in photoelectric tubes
US2533809A (en) * 1948-07-03 1950-12-12 Westinghouse Electric Corp Protection of phosphors from attack by alkali vapors
US2592683A (en) * 1949-03-31 1952-04-15 Bell Telephone Labor Inc Storage device utilizing semiconductor
US2645712A (en) * 1949-12-01 1953-07-14 Rca Corp Reading circuit for storage tubes
US2657309A (en) * 1949-03-31 1953-10-27 Bell Telephone Labor Inc Storage device utilizing semiconductor
US2754445A (en) * 1952-08-01 1956-07-10 Eitel Mccullough Inc Ceramic vacuum tube

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE911305C (de) * 1944-09-26 1954-05-13 Siemens Ag Elektronenroehre mit scheibenfoermigen Elektrodendurchfuehrungen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2099531A (en) * 1935-11-15 1937-11-16 Telefunken Gmbh Electron discharge device
US2297492A (en) * 1939-12-16 1942-09-29 Michaelis Gunter Electrical discharge device
US2449493A (en) * 1947-08-28 1948-09-14 Westinghouse Electric Corp Attaining high vacuum in photoelectric tubes
US2533809A (en) * 1948-07-03 1950-12-12 Westinghouse Electric Corp Protection of phosphors from attack by alkali vapors
US2592683A (en) * 1949-03-31 1952-04-15 Bell Telephone Labor Inc Storage device utilizing semiconductor
US2657309A (en) * 1949-03-31 1953-10-27 Bell Telephone Labor Inc Storage device utilizing semiconductor
US2645712A (en) * 1949-12-01 1953-07-14 Rca Corp Reading circuit for storage tubes
US2754445A (en) * 1952-08-01 1956-07-10 Eitel Mccullough Inc Ceramic vacuum tube

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3066236A (en) * 1958-05-14 1962-11-27 Int Standard Electric Corp Electron discharge devices
US2967965A (en) * 1958-06-02 1961-01-10 Rca Corp Luminous display panel
US3153167A (en) * 1960-08-10 1964-10-13 Sylvania Electric Prod Electroluminescent devices with improved electrical contacts
US3262010A (en) * 1960-08-31 1966-07-19 Hughes Aircraft Co Electrical display apparatus incorpolrating electroluminescent and gas discharge devices
DE1233496B (de) * 1963-05-28 1967-02-02 Hitachi Ltd Elektrodenanordnung fuer elektrische Entladungsgeraete mit mehreren ebenen Elektroden
US3317771A (en) * 1963-10-31 1967-05-02 Varian Associates Photo-emissive electron device
US3648093A (en) * 1969-12-11 1972-03-07 Burroughs Corp Display panel with novel cathode assembly
US4100454A (en) * 1975-06-07 1978-07-11 Dai Nippon Toryo Co., Ltd. Low-velocity electron excited fluorescent display device
US4176297A (en) * 1976-10-26 1979-11-27 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence Ultra violet initiated gas discharge visual display matrix
US4158210A (en) * 1977-09-13 1979-06-12 Matsushita Electric Industrial Co., Ltd. Picture image display device
US4504766A (en) * 1981-08-25 1985-03-12 Murata Manufacturing Co., Ltd. Chip type discharge element with laminated insulating sheets

Also Published As

Publication number Publication date
CH344488A (fr) 1960-02-15
BE546906A (el)
DE1077791B (de) 1960-03-17
GB808292A (en) 1959-02-04

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