FR816720A - High pressure mercury vapor discharge tube - Google Patents

High pressure mercury vapor discharge tube

Info

Publication number
FR816720A
FR816720A FR816720DA FR816720A FR 816720 A FR816720 A FR 816720A FR 816720D A FR816720D A FR 816720DA FR 816720 A FR816720 A FR 816720A
Authority
FR
France
Prior art keywords
high pressure
discharge tube
pressure mercury
mercury vapor
vapor 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 FR816720A publication Critical patent/FR816720A/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
    • H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
    • H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent
    • H01J61/20—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent mercury vapour
FR816720D 1936-01-24 1937-01-22 High pressure mercury vapor discharge tube Expired FR816720A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL474192X 1936-01-24

Publications (1)

Publication Number Publication Date
FR816720A true FR816720A (en) 1937-08-16

Family

ID=19786502

Family Applications (1)

Application Number Title Priority Date Filing Date
FR816720D Expired FR816720A (en) 1936-01-24 1937-01-22 High pressure mercury vapor discharge tube

Country Status (5)

Country Link
US (1) US2177694A (en)
BE (1) BE419602A (en)
DE (1) DE750670C (en)
FR (1) FR816720A (en)
GB (1) GB474192A (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL13401C (en) * 1921-06-14
CH138143A (en) * 1927-12-19 1930-02-15 Inc Claude Neon Lights Glow light tube with positive light column.
DE529393C (en) * 1929-02-21 1931-07-11 Patra Patent Treuhand Process and device for the operation of electric light tubes with gas or steam filling
DE657108C (en) * 1934-11-05 1938-02-25 Philips Patentverwaltung Artificially cooled high pressure mercury vapor discharge tubes for light emission

Also Published As

Publication number Publication date
US2177694A (en) 1939-10-31
DE750670C (en) 1945-01-25
GB474192A (en) 1937-10-27
BE419602A (en)

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