[go: up one dir, main page]

FR859109A - Improvements to discharge tubes - Google Patents

Improvements to discharge tubes

Info

Publication number
FR859109A
FR859109A FR859109DA FR859109A FR 859109 A FR859109 A FR 859109A FR 859109D A FR859109D A FR 859109DA FR 859109 A FR859109 A FR 859109A
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
Application filed by Compagnie des Lampes filed Critical Compagnie des Lampes
Application granted granted Critical
Publication of FR859109A publication Critical patent/FR859109A/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
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/067—Main electrodes for low-pressure discharge lamps
    • H01J61/0672—Main electrodes for low-pressure discharge lamps characterised by the construction of the electrode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Discharge Lamp (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
FR859109D 1938-08-26 1939-08-17 Improvements to discharge tubes Expired FR859109A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US533451XA 1938-08-26 1938-08-26

Publications (1)

Publication Number Publication Date
FR859109A true FR859109A (en) 1940-12-11

Family

ID=21983555

Family Applications (2)

Application Number Title Priority Date Filing Date
FR859109D Expired FR859109A (en) 1938-08-26 1939-08-17 Improvements to discharge tubes
FR51918D Expired FR51918E (en) 1938-08-26 1942-01-15 Improvements to discharge tubes

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR51918D Expired FR51918E (en) 1938-08-26 1942-01-15 Improvements to discharge tubes

Country Status (4)

Country Link
DE (1) DE731254C (en)
FR (2) FR859109A (en)
GB (2) GB533451A (en)
NL (1) NL57005C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1958227B1 (en) * 2005-11-22 2018-08-01 Trojan Technologies Inc. Radiation lamp and radiation source module incorporating same

Also Published As

Publication number Publication date
GB553184A (en) 1943-05-11
DE731254C (en) 1943-02-04
FR51918E (en) 1943-05-24
GB533451A (en) 1941-02-13
NL57005C (en)

Similar Documents

Publication Publication Date Title
FR840676A (en) Improvements to discharge tubes
FR864657A (en) Improvements to discharge tubes
FR846160A (en) Improvements to discharge tubes
FR835633A (en) Improvements to electric discharge tubes
FR855943A (en) Improvements made to electric discharge tubes
FR884059A (en) Improvements to discharge tubes
FR870111A (en) Improvements to discharge tubes
FR832654A (en) Improvements to discharge tubes
FR950304A (en) Improvements to discharge tubes
FR51918E (en) Improvements to discharge tubes
FR874589A (en) Improvements made to electric discharge tubes
FR866332A (en) Improvements to discharge tubes
FR861547A (en) Improvements to grid-screen lamps
FR864289A (en) Improvements to discharge tubes
FR50983E (en) Improvements to discharge tubes
FR850738A (en) Improvements to discharge lamps
FR872842A (en) Improvements made to electric discharge tubes
FR838991A (en) Improvements to discharge tubes
FR851895A (en) Improvements to equipment comprising discharge tubes
FR835607A (en) Discharge tube
FR867555A (en) Improvements to discharge tubes
FR867435A (en) Improvements to discharge tubes
FR51097E (en) Improvements to discharge tubes
FR841828A (en) Improvements to electric discharge tubes
FR856369A (en) Improvements to discharge lamps