GB474192A - Improvements in high-pressure mercury vapour discharge tubes - Google Patents

Improvements in high-pressure mercury vapour discharge tubes

Info

Publication number
GB474192A
GB474192A GB1970/37A GB197037A GB474192A GB 474192 A GB474192 A GB 474192A GB 1970/37 A GB1970/37 A GB 1970/37A GB 197037 A GB197037 A GB 197037A GB 474192 A GB474192 A GB 474192A
Authority
GB
United Kingdom
Prior art keywords
tube
mercury
rare gas
per cent
pressure
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
GB1970/37A
Other languages
English (en)
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
Publication of GB474192A publication Critical patent/GB474192A/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

Landscapes

  • Discharge Lamp (AREA)
GB1970/37A 1936-01-24 1937-01-22 Improvements in high-pressure mercury vapour discharge tubes Expired GB474192A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB474192A true GB474192A (en) 1937-10-27

Family

ID=19786502

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1970/37A Expired GB474192A (en) 1936-01-24 1937-01-22 Improvements in high-pressure mercury vapour discharge tubes

Country Status (5)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD336929S (en) 1990-01-31 1993-06-29 Nichifu Terminal Manufacture Co., Ltd. Identification tag unit for electrical wire ends
USD333491S (en) 1990-04-25 1993-02-23 Nichifu Terminal Manufacture Co., Ltd. Set of identification tags for electrical wire ends

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL13401C (en:Method) * 1921-06-14
CH138143A (de) * 1927-12-19 1930-02-15 Inc Claude Neon Lights Glimmlichtröhre mit positiver Lichtsäule.
DE529393C (de) * 1929-02-21 1931-07-11 Patra Patent Treuhand Verfahren und Einrichtung zum Betriebe elektrischer Leuchtroehren mit Gas- oder Dampffuellung
DE657108C (de) * 1934-11-05 1938-02-25 Philips Patentverwaltung Kuenstlich gekuehlte, fuer Lichtausstrahlung dienende Hochdruckquecksilberdampfentladungsroehre

Also Published As

Publication number Publication date
FR816720A (fr) 1937-08-16
DE750670C (de) 1945-01-25
US2177694A (en) 1939-10-31
BE419602A (en:Method)

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