FR813644A - Lighting improvements with mercury vapor lamps - Google Patents

Lighting improvements with mercury vapor lamps

Info

Publication number
FR813644A
FR813644A FR813644DA FR813644A FR 813644 A FR813644 A FR 813644A FR 813644D A FR813644D A FR 813644DA FR 813644 A FR813644 A FR 813644A
Authority
FR
France
Prior art keywords
lighting
mercury vapor
vapor lamps
lamps
mercury
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.)
Holophane SAS
Original Assignee
Holophane SAS
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 Holophane SAS filed Critical Holophane SAS
Application granted granted Critical
Publication of FR813644A publication Critical patent/FR813644A/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
    • H01J61/92—Lamps with more than one main discharge path
    • H01J61/94—Paths producing light of different wavelengths, e.g. for simulating daylight
FR813644D 1936-02-12 1936-02-12 Lighting improvements with mercury vapor lamps Expired FR813644A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR813644T 1936-02-12

Publications (1)

Publication Number Publication Date
FR813644A true FR813644A (en) 1937-06-05

Family

ID=9266305

Family Applications (1)

Application Number Title Priority Date Filing Date
FR813644D Expired FR813644A (en) 1936-02-12 1936-02-12 Lighting improvements with mercury vapor lamps

Country Status (1)

Country Link
FR (1) FR813644A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2951740A1 (en) * 1978-12-22 1980-06-26 Mitsubishi Electric Corp LIGHTING DEVICE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2951740A1 (en) * 1978-12-22 1980-06-26 Mitsubishi Electric Corp LIGHTING DEVICE

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