FR429778A - Method and device for increasing the efficiency of a light source - Google Patents

Method and device for increasing the efficiency of a light source

Info

Publication number
FR429778A
FR429778A FR429778A FR429778DA FR429778A FR 429778 A FR429778 A FR 429778A FR 429778 A FR429778 A FR 429778A FR 429778D A FR429778D A FR 429778DA FR 429778 A FR429778 A FR 429778A
Authority
FR
France
Prior art keywords
increasing
efficiency
light source
source
light
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
FR429778A
Other languages
French (fr)
Inventor
Joachim Lafitte
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR429778A publication Critical patent/FR429778A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels
FR429778A 1911-05-17 1911-05-17 Method and device for increasing the efficiency of a light source Expired FR429778A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR191116148X 1911-05-17

Publications (1)

Publication Number Publication Date
FR429778A true FR429778A (en) 1911-09-30

Family

ID=32606670

Family Applications (1)

Application Number Title Priority Date Filing Date
FR429778A Expired FR429778A (en) 1911-05-17 1911-05-17 Method and device for increasing the efficiency of a light source

Country Status (2)

Country Link
FR (1) FR429778A (en)
GB (1) GB191116148A (en)

Also Published As

Publication number Publication date
GB191116148A (en) 1912-04-25

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