US2213182A - Electric glow discharge tube - Google Patents

Electric glow discharge tube Download PDF

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Publication number
US2213182A
US2213182A US468884A US46888430A US2213182A US 2213182 A US2213182 A US 2213182A US 468884 A US468884 A US 468884A US 46888430 A US46888430 A US 46888430A US 2213182 A US2213182 A US 2213182A
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US
United States
Prior art keywords
electrodes
electrode
bulb
lamp
electric
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
US468884A
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English (en)
Inventor
Danzer Catherine
Randa General Conrad
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of US2213182A publication Critical patent/US2213182A/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
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/64—Cathode glow lamps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H01J61/76—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a filling of permanent gas or gases only

Definitions

  • the diameter of the globe should have a length of about three times the distance between the electrodes.
  • the possible electrode distance depends upon the nature of the tube; it may be about 50 mm.
  • the globe shaped bulb should have a diameter of neither more or less than about 150 mm.
  • the enclosed drawing shows the light phenomenon of a tube for alternating current made according to the present invention.
  • the two electrodes 0 are arranged on supports and are connected to the leading-in wires. If the electrodes are sufliciently heated an arc is formed.
  • the pressure of the rare gas and the inter-electrode spacing are mutually small enough to provide illumination by expanded cathodic light whilst the positive column is effectively predominated or even suppressed.
  • the stem m carries the two electrodes. Spirals passing through the electrodes 0 and connected to said electrodes at one end have their other ends transversally connected by means of a conducting bridge I as shown. By passing current through said spirals and heating the electrodes the gas or gases contained in the tube is or are ionised, and an arc is formed; and further,
  • the glass bulb b is according to the present invention selected in such a way that it substantially encloses the whole light phenomenon.
  • At least one electrode which by the action of heat can emit electrons and cause the formation of an arc.
  • An electric illuminating lamp comprising a bulb, two closely spaced electrodes therein at least one of which is capable of emitting electrons freely when heated, the diameter of the bulb being approximately three times the distance between the electrodes, a resistance member capable of heating said electrode to its electron emitting temperature, one end of which resistance member is connected to the electron emitting electrode and the other end thereof to the other electrode to permit the application of a poten-- tial between said electrodes, and a rare gas filling or said lamp.
  • An electric illuminating lamp for alternat-' ing current comprising a bulb, a rare gas filling,
  • tubular electrodes of small diameter each being connected together ing current, comprising a globular bulb, two'co-.
  • each of which electrodes is capable of emitting electrons freely at relatively low temperature
  • members for indirectly heating said electrodes members for indirectly heating said electrodes
  • lamp terminals permitting electric current to be supplied to said heating members and a potential to be applied between the electrodes, and a rare gas filling for said lamp, said lamp bulb having a diameter of about mm.
  • An electric illuminating lamp comprising a bulb, co-operating electrodes therein at least one of which is capable of emitting electrons freely at relatively low temperature, the diameter of the bulb being approximately three times the distance between the electrodes, a resistance heater for indirectly heating said electrode, lamp terminals permitting electric current to be supplied to said heating member and a potential to be applied between the electrodes, one end of said heater being connected to said emitting electrode and the other end to the other electrode, and a rare gas filling for said lamp.
  • An electric illuminating lamp for alternating current comprising a bulb, two co-operating electrodes therein each of which is capable of emitting electrons freely at'relatively low temperature, the diameter of the bulb being approximately three times the distance between the electrodes, a resistance heater for indirectly heating each electrode, one end of each resistance heater being connected to its electrode, a low resistance bridge connecting the other ends of said resistance heaters, lamp terminals permitting electric current to be supplied to said heating member and a potential to be applied between the electrodes, and a rare gas filling for said lamp.
  • An electric illuminating lamp for alternating current comprising a globular bulb; two tubular co-operating electrodes located centrally therein parallel with one another, the diameter of the bulb being approximately three times the distance between the electrodes, each of which electrodes is capable of emitting electrons freely at relatively low temperature, a resistance member for indirectly heating each electrode, lamp terminals permitting electric current to be supplied to said heating members and a potential to be applied between the electrodes, and a rare gas filling for said lamp.
  • An electric illuminating lamp comprising a bulb, co-operating electrodes therein at least one of which is capable of emitting electrons freely at relatively low temperature, a resistance heater for continuously and indirectly heating said electrode, lamp terminals permitting electric current to be supplied to said heating member and a potential to be applied between the electrodes, one end of said heater being permanently connected to said emitting electrode and the other end thereof being permanently connected to the other electrode, and rare gas filling for said lamp, the size and shape of said lamp bulb being such that its inner wall surface is not nearer said electrode than approximately the perceptible natural boundary of its cathodic light.
  • An electric illuminating lamp for alternating current comprising a globular bulb, two tubular co-operating electrodes located centrally therein parallel with one another, each of which electrodes is capable of emitting electrons freely at relatively low temperature, a resistance member for indirectly heating each electrode, lamp terminals permitting electric current to be supplied to said heating members and a potential to be applied between the electrodes, and a rare gas filling for said lamp, the pressure of said filling and the electrode separation being such that at the electron emitting temperature of said electrodes and with an interelectrode potential approximately of the order of the ionizing poten tial of the rare gas no appreciable positive column can arise, and the size and shape of said lamp being such that its inner wall surface is not nearer either electrode than approximately the perceptible natural boundary of its cathodic light.

Landscapes

  • Discharge Lamp (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Electroluminescent Light Sources (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
US468884A 1929-07-30 1930-07-18 Electric glow discharge tube Expired - Lifetime US2213182A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT364088X 1929-07-30
AT2213183X 1929-12-04

Publications (1)

Publication Number Publication Date
US2213182A true US2213182A (en) 1940-08-27

Family

ID=32070364

Family Applications (2)

Application Number Title Priority Date Filing Date
US468884A Expired - Lifetime US2213182A (en) 1929-07-30 1930-07-18 Electric glow discharge tube
US497025A Expired - Lifetime US2213183A (en) 1929-07-30 1930-11-20 Electric rare gas lighting tube

Family Applications After (1)

Application Number Title Priority Date Filing Date
US497025A Expired - Lifetime US2213183A (en) 1929-07-30 1930-11-20 Electric rare gas lighting tube

Country Status (6)

Country Link
US (2) US2213182A (enrdf_load_stackoverflow)
BE (1) BE372352A (enrdf_load_stackoverflow)
ES (1) ES119015A1 (enrdf_load_stackoverflow)
FR (1) FR699222A (enrdf_load_stackoverflow)
GB (2) GB364088A (enrdf_load_stackoverflow)
NL (1) NL44755C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2607901A (en) * 1946-12-31 1952-08-19 Bell Telephone Labor Inc Electronic discharge device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2607901A (en) * 1946-12-31 1952-08-19 Bell Telephone Labor Inc Electronic discharge device

Also Published As

Publication number Publication date
US2213183A (en) 1940-08-27
GB364088A (en) 1931-12-28
BE372352A (enrdf_load_stackoverflow)
GB367351A (en) 1932-02-15
ES119015A1 (es) 1930-08-16
NL44755C (enrdf_load_stackoverflow)
FR699222A (fr) 1931-02-12

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