FR948610A - Improvements to discharge tubes - Google Patents

Improvements to discharge tubes

Info

Publication number
FR948610A
FR948610A FR948610DA FR948610A FR 948610 A FR948610 A FR 948610A FR 948610D A FR948610D A FR 948610DA FR 948610 A FR948610 A FR 948610A
Authority
FR
France
Prior art keywords
discharge tubes
tubes
discharge
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
Other languages
French (fr)
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.)
Compagnie des Lampes
Original Assignee
Compagnie des Lampes
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 claimed from US430593A external-priority patent/US2445678A/en
Application filed by Compagnie des Lampes filed Critical Compagnie des Lampes
Application granted granted Critical
Publication of FR948610A publication Critical patent/FR948610A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/38—Cold-cathode tubes
    • H01J17/40—Cold-cathode tubes with one cathode and one anode, e.g. glow tubes, tuning-indicator glow tubes, voltage-stabiliser tubes, voltage-indicator tubes
    • H01J17/44—Cold-cathode tubes with one cathode and one anode, e.g. glow tubes, tuning-indicator glow tubes, voltage-stabiliser tubes, voltage-indicator tubes having one or more control electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
    • H01J2893/0065—Electrode systems
    • H01J2893/0068—Electrode systems electrode assembly with control electrodes, e.g. including a screen
FR948610D 1942-02-12 1947-06-27 Improvements to discharge tubes Expired FR948610A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US430593A US2445678A (en) 1942-02-12 1942-02-12 Electric discharge device
US551793A US2445679A (en) 1942-02-12 1944-08-30 Modulable electric discharge lamp

Publications (1)

Publication Number Publication Date
FR948610A true FR948610A (en) 1949-08-05

Family

ID=27028672

Family Applications (1)

Application Number Title Priority Date Filing Date
FR948610D Expired FR948610A (en) 1942-02-12 1947-06-27 Improvements to discharge tubes

Country Status (3)

Country Link
US (1) US2445679A (en)
FR (1) FR948610A (en)
GB (1) GB563767A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2805354A (en) * 1957-09-03 Modulable lamp construction
US2793313A (en) * 1953-01-26 1957-05-21 Rca Corp Method and structure for gas tube modulation
US2850660A (en) * 1953-10-29 1958-09-02 Frederick H Rixton Sub miniature glow lamp
US2904715A (en) * 1954-10-29 1959-09-15 Gen Electric Modulable discharge lamp
US3242371A (en) * 1962-03-29 1966-03-22 Hitachi Ltd Hollow-cathode discharge lamp for emission of atomic resonance lines
US3662214A (en) * 1970-04-13 1972-05-09 Sperry Rand Corp Gas discharge display apparatus utilizing hollow cathode light sources
US3670201A (en) * 1970-07-10 1972-06-13 Sperry Rand Corp Gas discharge display device with perimetrical cathode

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2055753A (en) * 1926-11-11 1936-09-29 Schnitzeler Peter Protective arrangement for glow discharge lamps
US1834072A (en) * 1928-07-04 1931-12-01 Telefunken Gmbh Glow lamp
US1951808A (en) * 1928-12-05 1934-03-20 Raytheon Mfg Co Gaseous conduction apparatus
US1932078A (en) * 1929-04-27 1933-10-24 Westinghouse Electric & Mfg Co Television lamp
US1915934A (en) * 1929-06-22 1933-06-27 Rca Corp Glow discharge tube
US1970223A (en) * 1929-06-28 1934-08-14 Case Res Lab Inc Sound recording glow lamp
US1923051A (en) * 1929-07-27 1933-08-15 Case Res Lab Inc Glow lamp
US1912097A (en) * 1930-04-15 1933-05-30 Rca Corp Electric glow discharge tube
US1834251A (en) * 1930-09-02 1931-12-01 Gen Electric Electrical discharge device
GB373270A (en) * 1931-02-21 1932-05-23 Marconi Wireless Telegraph Co Improvements in or relating to electric discharge lamps
US1951143A (en) * 1933-07-13 1934-03-13 Gen Electric Vapor Lamp Co Gaseous electric discharge device
US2190308A (en) * 1937-10-27 1940-02-13 Westinghouse Electric & Mfg Co Crater lamp as a spotlight

Also Published As

Publication number Publication date
GB563767A (en) 1944-08-29
US2445679A (en) 1948-07-20

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