FR1223792A - Improvements to electric discharge lamps - Google Patents

Improvements to electric discharge lamps

Info

Publication number
FR1223792A
FR1223792A FR794057A FR794057A FR1223792A FR 1223792 A FR1223792 A FR 1223792A FR 794057 A FR794057 A FR 794057A FR 794057 A FR794057 A FR 794057A FR 1223792 A FR1223792 A FR 1223792A
Authority
FR
France
Prior art keywords
electric discharge
discharge lamps
lamps
electric
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
FR794057A
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.)
A E I Lamp & Lighting Co
Original Assignee
A E I Lamp & Lighting Co
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 A E I Lamp & Lighting Co filed Critical A E I Lamp & Lighting Co
Application granted granted Critical
Publication of FR1223792A publication Critical patent/FR1223792A/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
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H01J61/74—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of difficult vaporisable metal vapour, e.g. sodium
FR794057A 1958-05-06 1959-05-06 Improvements to electric discharge lamps Expired FR1223792A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1223792X 1958-05-06

Publications (1)

Publication Number Publication Date
FR1223792A true FR1223792A (en) 1960-06-20

Family

ID=10883857

Family Applications (1)

Application Number Title Priority Date Filing Date
FR794057A Expired FR1223792A (en) 1958-05-06 1959-05-06 Improvements to electric discharge lamps

Country Status (1)

Country Link
FR (1) FR1223792A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1227996B (en) * 1960-08-17 1966-11-03 Duro Test Corp Lamp bulb for an electric discharge lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1227996B (en) * 1960-08-17 1966-11-03 Duro Test Corp Lamp bulb for an electric discharge lamp

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