FR931742A - Thermionic lamp - Google Patents

Thermionic lamp

Info

Publication number
FR931742A
FR931742A FR931742DA FR931742A FR 931742 A FR931742 A FR 931742A FR 931742D A FR931742D A FR 931742DA FR 931742 A FR931742 A FR 931742A
Authority
FR
France
Prior art keywords
thermionic
lamp
thermionic lamp
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.)
MO Valve Co Ltd
Original Assignee
MO Valve Co Ltd
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 MO Valve Co Ltd filed Critical MO Valve Co Ltd
Application granted granted Critical
Publication of FR931742A publication Critical patent/FR931742A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
    • H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
    • H01J7/183—Composition or manufacture of getters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0012—Constructional arrangements
    • H01J2893/0019—Chemical composition and manufacture
    • H01J2893/0022—Manufacture

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
FR931742D 1945-08-03 1946-08-01 Thermionic lamp Expired FR931742A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB931742X 1945-08-03

Publications (1)

Publication Number Publication Date
FR931742A true FR931742A (en) 1948-03-02

Family

ID=10740830

Family Applications (1)

Application Number Title Priority Date Filing Date
FR931742D Expired FR931742A (en) 1945-08-03 1946-08-01 Thermionic lamp

Country Status (2)

Country Link
BE (1) BE467049A (en)
FR (1) FR931742A (en)

Also Published As

Publication number Publication date
BE467049A (en)

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