GB481265A - Improvements in or relating to metal-vapour discharge tubes - Google Patents

Improvements in or relating to metal-vapour discharge tubes

Info

Publication number
GB481265A
GB481265A GB23239/37A GB2323937A GB481265A GB 481265 A GB481265 A GB 481265A GB 23239/37 A GB23239/37 A GB 23239/37A GB 2323937 A GB2323937 A GB 2323937A GB 481265 A GB481265 A GB 481265A
Authority
GB
United Kingdom
Prior art keywords
metal
electrodes
relating
discharge
discharge tubes
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
GB23239/37A
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 GB481265A publication Critical patent/GB481265A/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
    • H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J61/28—Means for producing, introducing, or replenishing gas or vapour during operation of the lamp

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

481,265. Discharge lamps. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Aug. 24, 1937, No. 23239. Convention date, Aug. 26, 1936. [Class 39 (i)] A metal - vapour dischargedevice, such as a lamp, is provided with a receptacle for a difficultly volatilizable metal arranged in front of the electrode, so that the discharge passes around them. The. arrangement shown comprises a U-tube 1 having electrodes 2 heated by the discharge and porcelain receptacles 3 supported by -wires 8 in front of the electrodes and having openings 4 on the side remote from the electrodes. In place of separate openings the receptacles may be made wholly or in part of porous material.
GB23239/37A 1936-08-26 1937-08-24 Improvements in or relating to metal-vapour discharge tubes Expired GB481265A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE481265X 1936-08-26

Publications (1)

Publication Number Publication Date
GB481265A true GB481265A (en) 1938-03-08

Family

ID=6542648

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23239/37A Expired GB481265A (en) 1936-08-26 1937-08-24 Improvements in or relating to metal-vapour discharge tubes

Country Status (3)

Country Link
FR (1) FR825866A (en)
GB (1) GB481265A (en)
NL (1) NL47374C (en)

Also Published As

Publication number Publication date
NL47374C (en)
FR825866A (en) 1938-03-16

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