FR675514A - Improvements to metal vapor lamps for the production of ultra-violet radiation - Google Patents

Improvements to metal vapor lamps for the production of ultra-violet radiation

Info

Publication number
FR675514A
FR675514A FR675514DA FR675514A FR 675514 A FR675514 A FR 675514A FR 675514D A FR675514D A FR 675514DA FR 675514 A FR675514 A FR 675514A
Authority
FR
France
Prior art keywords
ultra
production
metal vapor
violet radiation
vapor lamps
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)
Inventor
Paul Freedman
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 filed Critical
Application granted granted Critical
Publication of FR675514A publication Critical patent/FR675514A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/50—Thermionic-cathode tubes
FR675514D 1928-05-22 1929-05-22 Improvements to metal vapor lamps for the production of ultra-violet radiation Expired FR675514A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB675514X 1928-05-22

Publications (1)

Publication Number Publication Date
FR675514A true FR675514A (en) 1930-02-11

Family

ID=10492042

Family Applications (1)

Application Number Title Priority Date Filing Date
FR675514D Expired FR675514A (en) 1928-05-22 1929-05-22 Improvements to metal vapor lamps for the production of ultra-violet radiation

Country Status (1)

Country Link
FR (1) FR675514A (en)

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