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GB472307A - Improvements in or relating to electric discharge tubes - Google Patents

Improvements in or relating to electric discharge tubes

Info

Publication number
GB472307A
GB472307A GB13882/37A GB1388237A GB472307A GB 472307 A GB472307 A GB 472307A GB 13882/37 A GB13882/37 A GB 13882/37A GB 1388237 A GB1388237 A GB 1388237A GB 472307 A GB472307 A GB 472307A
Authority
GB
United Kingdom
Prior art keywords
chamber
discharge
liquid
partition
mercury
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
GB13882/37A
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 GB472307A publication Critical patent/GB472307A/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

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
GB13882/37A 1936-05-18 1937-05-18 Improvements in or relating to electric discharge tubes Expired GB472307A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE472307X 1936-05-18

Publications (1)

Publication Number Publication Date
GB472307A true GB472307A (en) 1937-09-21

Family

ID=6541397

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13882/37A Expired GB472307A (en) 1936-05-18 1937-05-18 Improvements in or relating to electric discharge tubes

Country Status (4)

Country Link
US (1) US2122285A (fr)
FR (1) FR821958A (fr)
GB (1) GB472307A (fr)
NL (1) NL50082C (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR964680A (fr) * 1947-04-26 1950-08-22
US2820918A (en) * 1955-10-14 1958-01-21 Aronstein Robert Optical device for therapeutic and other purposes
US3284664A (en) * 1959-10-01 1966-11-08 Sylvania Electric Prod Pressure regulation of fluorescent lamps by peltier cooling means
US3309565A (en) * 1959-12-14 1967-03-14 Mc Graw Edison Co Light output of fluorescent lamps automatically held constant by means of peltier type coolers

Also Published As

Publication number Publication date
NL50082C (fr)
FR821958A (fr) 1937-12-17
US2122285A (en) 1938-06-28

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