GB417747A - Improvements in or relating to electric discharge lamps - Google Patents

Improvements in or relating to electric discharge lamps

Info

Publication number
GB417747A
GB417747A GB35896/33A GB3589633A GB417747A GB 417747 A GB417747 A GB 417747A GB 35896/33 A GB35896/33 A GB 35896/33A GB 3589633 A GB3589633 A GB 3589633A GB 417747 A GB417747 A GB 417747A
Authority
GB
United Kingdom
Prior art keywords
tubes
neon
dec
tube
contain
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
GB35896/33A
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of GB417747A publication Critical patent/GB417747A/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
    • H01J61/92—Lamps with more than one main discharge path
    • H01J61/94—Paths producing light of different wavelengths, e.g. for simulating daylight
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/26—Signs formed by electric discharge tubes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

417,747. Discharge lamps. PATENTTREUHAND - GES. FUR ELEKTRISCHE GLUHLAMPEN, 11, Ehrenberg. strasse, Berlin. Dec. 20, 1933, No. 35896. Convention date, Dec. 21, 1932. [Class 39 (i).] A portable electric standard lamp for decoration and advertising comprises two differently coloured, bent discharge tubes 18, 19 freely extending from a supporting pedestal 1 and connected in series at 16 in a metal or insulating case 10 supported from the tubes. The pedestal may contain a strayfield transformer 13, or, if the discharge tubes have incandescent electrodes so that they ignite at mains voltage, may contain only resistances. One tube may be filled with neon giving red light and the other with neon, argon and mercury giving blue light, or green light in combination with a brown or green glass tube. The tubes 18, 19 may be formed from a single tube by a longitudinal, spirally twisted partition as shown.
GB35896/33A 1932-12-21 1933-12-20 Improvements in or relating to electric discharge lamps Expired GB417747A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE417747X 1932-12-21

Publications (1)

Publication Number Publication Date
GB417747A true GB417747A (en) 1934-10-11

Family

ID=6448751

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35896/33A Expired GB417747A (en) 1932-12-21 1933-12-20 Improvements in or relating to electric discharge lamps

Country Status (2)

Country Link
FR (1) FR765813A (en)
GB (1) GB417747A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4300073A (en) * 1979-02-13 1981-11-10 Westinghouse Electric Corp. Screw-in type lighting unit having a convoluted tridimensional fluorescent lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4300073A (en) * 1979-02-13 1981-11-10 Westinghouse Electric Corp. Screw-in type lighting unit having a convoluted tridimensional fluorescent lamp

Also Published As

Publication number Publication date
FR765813A (en) 1934-06-16

Similar Documents

Publication Publication Date Title
GB404448A (en) Improvements in luminous electric discharge tubes
GB625256A (en) Gas discharge lamp
GB428996A (en) Improvements in luminous electric discharge tubes
GB417747A (en) Improvements in or relating to electric discharge lamps
US2138197A (en) Electric discharge lamp
US2288250A (en) Luminous vapor lamp
GB355175A (en) Improvements in or relating to electric lamps
GB398799A (en) Improvements in electric discharge lamps
GB360339A (en) Improvements in or relating to electric lamps
GB359875A (en) Improvements in or relating to electric lamps
GB360446A (en) Improvements in or relating to luminescent gas discharge tubes
GB395738A (en) Improvements in electric luminous discharge tubes
GB360344A (en)
GB463232A (en) Improvements in and relating to signalling and like electric lamps
GB483230A (en) Improvements in or relating to luminous electric discharge tubes
GB373817A (en) Electric discharge lighting tubes with rare gas filling, in particular for illuminated advertising purposes
GB355173A (en)
GB376208A (en) Improvements in luminous electric discharge tubes
GB360823A (en) Improvements in or relating to luminescent gas discharge tubes
GB486418A (en) Improvements in means for producing light comprising in combination an electric discharge lamp and an electric incandescent lamp whose filament is in series with the discharge path
AU107171B2 (en) Improvements in electric glow discharge lamps
GB454459A (en) Improvements in or relating to means of illumination comprising a plurality of discharge devices
GB381904A (en) Improvements in electric discharge lamps
AU110601B2 (en) Improvements in electric gaseous discharge lamps
GB397006A (en) Improvements in electric lamps