US2594026A - Electron tube with luminescent shield, especially tuning tube - Google Patents

Electron tube with luminescent shield, especially tuning tube Download PDF

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Publication number
US2594026A
US2594026A US188162A US18816250A US2594026A US 2594026 A US2594026 A US 2594026A US 188162 A US188162 A US 188162A US 18816250 A US18816250 A US 18816250A US 2594026 A US2594026 A US 2594026A
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US
United States
Prior art keywords
cathode
tube
fluorescent substance
support
electron
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
US188162A
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English (en)
Inventor
Jacobi Werner
Hinderer Hermann
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.)
Siemens and Halske AG
Siemens AG
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Siemens AG
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 Siemens AG filed Critical Siemens AG
Application granted granted Critical
Publication of US2594026A publication Critical patent/US2594026A/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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/21—Paper; Textile fabrics
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2400/00—Presence of inorganic and organic materials
    • C09J2400/20—Presence of organic materials
    • C09J2400/28—Presence of paper
    • C09J2400/283—Presence of paper in the substrate

Definitions

  • This invention is concerned with electron dis charge devices, especially tuning tubes, having fluorescent" electrodes which are rendered luminous to produce for indicating purposes patterns of light in response to applied voltages.
  • the object of the invention is to provide a discharge device of the above noted type having a fluorescent electrode which comprises an elon gated transparent support, e. g, a glass support, carrying a narrow strip or band of fluorescent substance substantially throughout its longitu dinal extent.
  • the fluorescent substance is rendered luminous responsive to applied voltages and produces a narrow, luminous indicating column of different length according to the voltage applied.
  • This luminous indicating column may be viewed through the transparent support along lines of observation which lie entirely outside ofthe remaining electrode members of the discharge device, .thus permitting observation.of the entire area of the luminous column and thereby providing for clear and unobstructed indication;
  • the various elements of the new structure are arranged in a manner to save space.
  • transparent is intended to embrace the meaning usually attached to the'term translucent, or similar language.
  • fglass employed herein with reference to the material used for the support of the fluorescent substance is intended to include glass as such, as well as any other desired and suitable material which is transparent or substantially transparent, so as to satisfy the requirements of the invention.
  • the fluorescent substance may be provided on the transparent support'in the form of a thin, striplike layer of such moderate thickness as to prevent charging.
  • the support for the fluorescent substance may be provided with a suitable conductive substantially transparent coatmg.
  • a glass rod of cross-sectionally substantially cylindrical or heart shaped configuration was' iound particularly suitable.
  • Such a glass body may be made in the form of a thin rod of a few millimeters thickness.
  • the fluorescent substance may be applied to the glass rod by powdering or by sedimentation with the use of suitable masks.
  • the glass rod may also be provided with a shallow groove, e. g., by etchins, to which the luminescent substance adheres while it is wiped off from the'remainder of,.the rod.
  • the indication provided by the luminous fluorescent substance on the glass rod may be observed either obliquely from the front or from 8 Claims. (Cl. 313107.5)
  • the optical properties of the transparent rod may be utilized by giving it a proper shapeto produce an apparent increase in the brightness or a magnification of the luminous indicating col-' umn, thereby improving the indication.
  • the electrodes are in the structure ac cording to the invention outside of the observation field, they may be formed and disposed so as to produce particularly favorable electrical and electron-optical efiects.
  • a control electrode which is made in the shape of a shutter forming a wedgeshaped' cutout. "The size of such shutter may be so dimensioned that it 'doesnotad versally afiect the observation of'the indication.
  • the invention also permits auxiliary utilization of the space around the cathode (which is outside of the field of observation), for accommodating amplifier means and the total cathode'length may thus be utilized as the electron source for such amplifier means.
  • the amplifier means may be preferably arranged upon the side of the cathode which is opposite to the electron stream.
  • the discharge device may be in the form of a fouror five pole tube and the amplifier means may be arranged for the implification of the high frequency or may be employed as a low frequency starter stage.
  • the control electrode of the indicating system may be soconstructed and disposed that it controls the entire emission of the oath-- ode in a boosting sense.
  • FIG. 1 illustrates in schematic perspective and exploded view the principal electrode members of an electron discharge device embodying features of the invention
  • Fig. 2 indicates in like schematic manneranother embodiment in diagrammatic sectional view
  • Fig. 3 illustrates, in cross-section, a heartshaped form of the transparent support of Fig. 1;
  • Fig. 4 illustrates, in cross-section, a flat elongated striplike form ofthetransparent support of'Figl.
  • the cathode in Fig. 1 is indicated by numeral I. It is a tubular cathode carrying on the outside an emission layer and comprising in usual manner interior heating means 2.
  • the shutter 3 has a wedgelike or V-shaped cutout and serves as a control electrode.
  • the fluorescent substance 6 is carried in a longitudinal groove 8 of the support 1, which may be a glass rod or the like.
  • There are two anode members 4 and 5 which are made of suitable sheet material and disposed so as to form a gap therebetween, as shown.
  • the support I is disposed so that the groove 8 carrying the fluorescent substance faces the cathode through the gap formed by the anode members 4 and 5.
  • the glass support 1 may be ground longitudinally so as to form a plane surfacev (instead of the groove 8 shown) for receiving the fluorescent substance.
  • the glass rod may also be cross-sec tionally heart shaped, as shown in Fig. 3 or may have another suitable cross-sectional configuration such as shown in Fig. 4 so as to provide for desired optical effects, e. g., magnification of the luminous. column formed by the fluorescent. substance or increase of the brightness thereof, as mentioned before.
  • numeral 9 indicates the cathode which may be of cylindrical shape.
  • a strip or band shaped. cathode or a-cathodeof different suitable form may of course be provided as desired-
  • a support it is provided which carries the fluorescent substance and a control electrode I l is disposed between the support It and the cathode.
  • the electrode H may be made in the shape of a shutter having a wedgelike opening, as described in connection with the electrode 3 of Fig. 1. 7
  • the cathode 9 may be used thruout its length, in asuitable circuit, as a part of an amplifier tube system.
  • the electrodes surround the cathode 9 semi. spherically as shown.
  • the individual electrodes are indicated schematically.
  • Numeral l2 represents the anode, 6.3 a brake grid, M a screen gridandl5. designates a control grid.
  • the structure may therefore form a pentode for highand intermediate frequency amplification. If desired, the. pentode may also be utilized as a low frequency amplification tube.
  • fluorescent electrode comprising an elongated support made of glass or the like transparent material, a strip of a fluorescent substance carried by said elongated transparent support only on the side thereof which faces the cathode, said fluorescent substance being. rendered luminous to provide a bright indicating column of variable length responsive to varying voltages applied to said discharge device, said transparent support permitting unobstructed observation of the entire luminous column throughout its entire area from a. direction inback of the strip of fluorescent substance carried thereby.
  • control electrode is a flat sheet member in which is formed a wedge-shaped cutout, said member being disposed between said cathode and said transparent support for said fluorescent electrode to control the emission of said cathode.
  • An electron discharge device comprising a cylindrical cathode, a pair of anode members, said anode members being disposed to form an elongated gap therebet'ween, a control electrode having a wedge-shaped cutout formed therein, said control electrode being disposed between said cathode and said anode members, a fluorescent electrode disposed in back of the gap between said anode members, said fluorescent electrode comprising an elongated support made of glass or the like transparent material, a narrow strip of a fluorescent substance carried by.
  • said transparent support only on the side thereof which faces said cathode through said gap between said anode members, said fluorescent substance being rendered luminous to form a bright indicating column of variable length responsive to varying voltages applied to said discharge device, said transparent support permitting unobstructed observation of the entire luminous indicating "column throughout its entire area from a direction in back of the strip of the fluorescent substance carried thereby.
  • An electron discharge device comprising a cylindrical cathode, a semi-spherical anode with its concave side radially spaced from said cath' ode, a plurality of semi-spherical grid electrodes disposed between said cathode and said anode, a flat control electrode in which is formed a wedge.- shaped cutout, said control electrode being disposed adjacent said cathode with one side there of facing said cathode and the inside of the semispheri'cal electrodes in back of said cathode, a fluorescent electrode disposed adjacent to said control electrode on the other side thereof, said fluorescent electrode comprising an elongated support made of glass or the like transparent material, a strip of a fluorescent substance car: ried by said transparent support only on the side thereof which faces said control electrode, said fluorescent substance being rendered luminous to form a bright indicating column of variable length responsive to varying voltages applied to said discharge device, said transparent support permitting unobstructed observation of. the en.- tire luminous indicating column

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Barrages (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
US188162A 1949-09-09 1950-10-03 Electron tube with luminescent shield, especially tuning tube Expired - Lifetime US2594026A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE291029X 1949-09-09
DE293547X 1949-09-09
DE293270X 1949-12-09

Publications (1)

Publication Number Publication Date
US2594026A true US2594026A (en) 1952-04-22

Family

ID=32234244

Family Applications (3)

Application Number Title Priority Date Filing Date
US188162A Expired - Lifetime US2594026A (en) 1949-09-09 1950-10-03 Electron tube with luminescent shield, especially tuning tube
US188161A Expired - Lifetime US2594025A (en) 1949-09-09 1950-10-03 Electron tube with luminescent shield, especially tuning tube
US204122A Expired - Lifetime US2639398A (en) 1949-09-09 1950-11-29 Electronic tuning or indicating tube

Family Applications After (2)

Application Number Title Priority Date Filing Date
US188161A Expired - Lifetime US2594025A (en) 1949-09-09 1950-10-03 Electron tube with luminescent shield, especially tuning tube
US204122A Expired - Lifetime US2639398A (en) 1949-09-09 1950-11-29 Electronic tuning or indicating tube

Country Status (5)

Country Link
US (3) US2594026A (fr)
CH (3) CH291029A (fr)
FR (3) FR1025612A (fr)
GB (3) GB690756A (fr)
NL (2) NL86646C (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2648795A (en) * 1951-08-09 1953-08-11 Lee Electronic Labs Inc Visual electron flow indicator
US2712612A (en) * 1940-07-23 1955-07-05 Lorenz C Ag Voltage reference indicating valve
US2736834A (en) * 1951-08-10 1956-02-28 Hartford Nat Bank & Trust Co Electron discharge tube comprising a luminescent screen
US2971120A (en) * 1959-11-04 1961-02-07 Edward L Schiavone Switching device

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2927237A (en) * 1940-07-23 1960-03-01 Int Standard Electric Corp Voltage indicator tubes
NL82773C (fr) * 1952-02-08
US2802128A (en) * 1952-06-21 1957-08-06 Int Standard Electric Corp Tuning indicator valve
DE1036404B (de) * 1957-02-12 1958-08-14 Standard Elektrik Lorenz Ag Anordnung mit einer aus Kathode, Blende und Leuchtschirmanode bestehenden Anzeigeroehre
DE1037027B (de) * 1957-03-22 1958-08-21 Standard Elektrik Lorenz Ag Abstimmanzeigeroehre mit mindestens einem Verstaerkersystem
US3619694A (en) * 1969-11-18 1971-11-09 Ise Electronics Corp Character-indicating electron tube with fluorescent display structure
JPS59178444A (ja) * 1983-03-30 1984-10-09 Ricoh Co Ltd 照明装置
US4763041A (en) * 1983-10-24 1988-08-09 Ricoh Company, Ltd. Dot array fluorescent tube for writing optical information in optical printer
JPS61211956A (ja) * 1985-03-15 1986-09-20 Futaba Corp 真空螢光管

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1994726A (en) * 1934-07-27 1935-03-19 Rca Corp Tuning indicator tube
US2130162A (en) * 1935-06-27 1938-09-13 Rca Corp Tuning indicator tube
US2175700A (en) * 1938-03-29 1939-10-10 Rca Corp Electronic indicating device
US2223285A (en) * 1937-04-26 1940-11-26 Hygrade Sylvania Corp Tuning indicator device
US2243034A (en) * 1937-06-03 1941-05-20 Hygrade Sylvania Corp Fluorescent indicating device
US2273800A (en) * 1939-08-09 1942-02-17 Hygrade Sylvania Corp Fluorescent type indicator tube
US2394857A (en) * 1940-07-23 1946-02-12 Rca Corp Electron ray indicating device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2334473A (en) * 1941-08-07 1943-11-16 Rca Corp Frequency modulation tuning indicator
US2366320A (en) * 1942-08-29 1945-01-02 Rca Corp Voltage indicator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1994726A (en) * 1934-07-27 1935-03-19 Rca Corp Tuning indicator tube
US2130162A (en) * 1935-06-27 1938-09-13 Rca Corp Tuning indicator tube
US2223285A (en) * 1937-04-26 1940-11-26 Hygrade Sylvania Corp Tuning indicator device
US2243034A (en) * 1937-06-03 1941-05-20 Hygrade Sylvania Corp Fluorescent indicating device
US2175700A (en) * 1938-03-29 1939-10-10 Rca Corp Electronic indicating device
US2273800A (en) * 1939-08-09 1942-02-17 Hygrade Sylvania Corp Fluorescent type indicator tube
US2394857A (en) * 1940-07-23 1946-02-12 Rca Corp Electron ray indicating device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2712612A (en) * 1940-07-23 1955-07-05 Lorenz C Ag Voltage reference indicating valve
US2648795A (en) * 1951-08-09 1953-08-11 Lee Electronic Labs Inc Visual electron flow indicator
US2736834A (en) * 1951-08-10 1956-02-28 Hartford Nat Bank & Trust Co Electron discharge tube comprising a luminescent screen
US2971120A (en) * 1959-11-04 1961-02-07 Edward L Schiavone Switching device

Also Published As

Publication number Publication date
NL86646C (fr) 1957-11-15
FR1025612A (fr) 1953-04-17
US2639398A (en) 1953-05-19
US2594025A (en) 1952-04-22
FR1029710A (fr) 1953-06-05
CH293547A (de) 1953-09-30
GB690757A (en) 1953-04-29
GB690756A (en) 1953-04-29
CH291029A (de) 1953-05-31
FR1027392A (fr) 1953-05-11
NL80476C (fr) 1956-02-15
CH293270A (de) 1953-09-15
GB709909A (en) 1954-06-02

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