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FR486167A - Improvements in electric arc lamps - Google Patents

Improvements in electric arc lamps

Info

Publication number
FR486167A
FR486167A FR486167A FR486167DA FR486167A FR 486167 A FR486167 A FR 486167A FR 486167 A FR486167 A FR 486167A FR 486167D A FR486167D A FR 486167DA FR 486167 A FR486167 A FR 486167A
Authority
FR
France
Prior art keywords
electric arc
arc lamps
lamps
electric
arc
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
FR486167A
Other languages
French (fr)
Inventor
Westinghouse
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Application granted granted Critical
Publication of FR486167A publication Critical patent/FR486167A/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
FR486167A 1915-06-11 1916-06-09 Improvements in electric arc lamps Expired FR486167A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US33513A US1344757A (en) 1915-06-11 1915-06-11 Arc-lamp

Publications (1)

Publication Number Publication Date
FR486167A true FR486167A (en) 1918-03-14

Family

ID=21870829

Family Applications (1)

Application Number Title Priority Date Filing Date
FR486167A Expired FR486167A (en) 1915-06-11 1916-06-09 Improvements in electric arc lamps

Country Status (2)

Country Link
US (1) US1344757A (en)
FR (1) FR486167A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1153453B (en) * 1961-06-02 1963-08-29 Patra Patent Treuhand High pressure discharge lamp with metal halide vapor and high luminous efficiency
US3529209A (en) * 1967-06-12 1970-09-15 Engelhard Hanovia Inc Self-starting compact arc lamp
WO2007132368A2 (en) * 2006-05-15 2007-11-22 Koninklijke Philips Electronics N.V. Low-pressure gas discharge lamp having improved efficiency

Also Published As

Publication number Publication date
US1344757A (en) 1920-06-29

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