GB414608A - Improvements in or relating to electric discharge tubes - Google Patents

Improvements in or relating to electric discharge tubes

Info

Publication number
GB414608A
GB414608A GB7674/34A GB767434A GB414608A GB 414608 A GB414608 A GB 414608A GB 7674/34 A GB7674/34 A GB 7674/34A GB 767434 A GB767434 A GB 767434A GB 414608 A GB414608 A GB 414608A
Authority
GB
United Kingdom
Prior art keywords
electric discharge
relating
straight parts
discharge tubes
vapour
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
GB7674/34A
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 GB414608A publication Critical patent/GB414608A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/02Details
    • H01J61/30Vessels; Containers
    • H01J61/34Double-wall vessels or containers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/02Details
    • H01J61/30Vessels; Containers
    • H01J61/32Special longitudinal shape, e.g. for advertising purposes
    • H01J61/325U-shaped lamps

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamp (AREA)

Abstract

414,608. Discharge lamps. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. March 10, 1934, No. 7674. Convention date, April 4, 1933. [Class 39 (i).] An electric discharge tube containing a rare gas and vapour of one or more volatile metals such as sodium potassium, rubidium, cadmium, magnesium, thallium or zinc, the vapour pressure of which at 200‹ C. is only a fraction of one millimetre, is formed of straight parts 1, 2 connected by a curved part of less cross-section than the straight parts ; it may be at least 10 per cent smaller. The temperature of the tube is equalized by this construction.
GB7674/34A 1933-04-04 1934-03-10 Improvements in or relating to electric discharge tubes Expired GB414608A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE414608X 1933-04-04

Publications (1)

Publication Number Publication Date
GB414608A true GB414608A (en) 1934-08-09

Family

ID=6448372

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7674/34A Expired GB414608A (en) 1933-04-04 1934-03-10 Improvements in or relating to electric discharge tubes

Country Status (4)

Country Link
US (1) US2001510A (en)
FR (1) FR771173A (en)
GB (1) GB414608A (en)
NL (1) NL44356C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119563A (en) * 1982-03-31 1983-11-16 Matsushita Electric Works Ltd Compact fluorescent lamp

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05215673A (en) * 1992-01-31 1993-08-24 Shimadzu Corp Low-voltage discharge tube and atomic absorption spectrophotometer using same
WO1995017002A2 (en) * 1993-12-16 1995-06-22 Strueber Dieter Method of manufacturing a discharge lamp and discharge camp manufactured according to this method
DE19613358C1 (en) * 1996-04-03 1997-10-09 Heraeus Noblelight Gmbh Optical spotlight

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119563A (en) * 1982-03-31 1983-11-16 Matsushita Electric Works Ltd Compact fluorescent lamp
US4603277A (en) * 1982-03-31 1986-07-29 Matsushita Electric Works, Ltd. Fluorescent lamp with bent tubes and support spacer within outer bulb

Also Published As

Publication number Publication date
FR771173A (en) 1934-10-02
NL44356C (en)
US2001510A (en) 1935-05-14

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