FR47656E - Electric discharge tube - Google Patents

Electric discharge tube

Info

Publication number
FR47656E
FR47656E FR47656DA FR47656E FR 47656 E FR47656 E FR 47656E FR 47656D A FR47656D A FR 47656DA FR 47656 E FR47656 E FR 47656E
Authority
FR
France
Prior art keywords
electric discharge
discharge tube
tube
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
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR47656E publication Critical patent/FR47656E/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
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/34—Double-wall vessels or containers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/54—Igniting arrangements, e.g. promoting ionisation for starting
    • H01J61/547—Igniting arrangements, e.g. promoting ionisation for starting using an auxiliary electrode outside the vessel
    • 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
FR47656D 1931-12-23 1936-08-24 Electric discharge tube Expired FR47656E (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL392796X 1931-12-23
NL401240X 1932-07-27
DE457740X 1935-08-26

Publications (1)

Publication Number Publication Date
FR47656E true FR47656E (en) 1937-06-16

Family

ID=31950151

Family Applications (2)

Application Number Title Priority Date Filing Date
FR741891D Expired FR741891A (en) 1931-12-23 1932-08-11
FR47656D Expired FR47656E (en) 1931-12-23 1936-08-24 Electric discharge tube

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR741891D Expired FR741891A (en) 1931-12-23 1932-08-11

Country Status (6)

Country Link
US (1) US2056648A (en)
BE (1) BE390343A (en)
DE (1) DE652752C (en)
FR (2) FR741891A (en)
GB (3) GB392796A (en)
NL (1) NL45860C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2610289A (en) * 1949-02-23 1952-09-09 Arthur A Brainerd Enclosed internally heated electric discharge lamp luminaire for variable temperature service
US2849598A (en) * 1953-09-08 1958-08-26 Willis L Lipscomb Non-glare lighting fixture
US3001060A (en) * 1957-07-22 1961-09-19 Esquire Inc Floodlight
FR2649827B1 (en) * 1989-07-13 1992-06-12 Sodern DEVICE FOR HEATING AN ALUMINA TUBE AND DISCHARGE TUBE PROVIDED WITH SUCH A DEVICE
CN108039004A (en) * 2017-12-26 2018-05-15 佛山市道静科技有限公司 A kind of Intelligent road Operation Van based on wireless telecommunications

Also Published As

Publication number Publication date
GB392796A (en) 1933-05-25
GB401240A (en) 1933-11-09
US2056648A (en) 1936-10-06
FR741891A (en) 1933-02-22
NL45860C (en) 1939-06-15
BE390343A (en) 1932-09-23
GB457740A (en) 1936-12-04
DE652752C (en) 1937-11-08

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