GB551226A - Improvements in or relating to electric discharge tubes - Google Patents

Improvements in or relating to electric discharge tubes

Info

Publication number
GB551226A
GB551226A GB14296/41A GB1429641A GB551226A GB 551226 A GB551226 A GB 551226A GB 14296/41 A GB14296/41 A GB 14296/41A GB 1429641 A GB1429641 A GB 1429641A GB 551226 A GB551226 A GB 551226A
Authority
GB
United Kingdom
Prior art keywords
relating
electric discharge
discharge tubes
philips
gloeilampenfabrieken
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
GB14296/41A
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 GB551226A publication Critical patent/GB551226A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/22—Means for obtaining or maintaining the desired pressure within the tube
    • H01J17/26—Means for producing, introducing, or replenishing gas or vapour during operation of the tube

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
GB14296/41A 1940-06-25 1941-11-05 Improvements in or relating to electric discharge tubes Expired GB551226A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL223862X 1940-06-25

Publications (1)

Publication Number Publication Date
GB551226A true GB551226A (en) 1943-02-12

Family

ID=19779535

Family Applications (2)

Application Number Title Priority Date Filing Date
GB14296/41A Expired GB551226A (en) 1940-06-25 1941-11-05 Improvements in or relating to electric discharge tubes
GB26311/45A Expired GB601871A (en) 1940-06-25 1945-10-09 Improvements in or relating to electric discharge tubes

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB26311/45A Expired GB601871A (en) 1940-06-25 1945-10-09 Improvements in or relating to electric discharge tubes

Country Status (5)

Country Link
US (1) US2330600A (enrdf_load_stackoverflow)
CH (1) CH223862A (enrdf_load_stackoverflow)
FR (1) FR875391A (enrdf_load_stackoverflow)
GB (2) GB551226A (enrdf_load_stackoverflow)
NL (1) NL56513C (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4035682A (en) * 1976-08-26 1977-07-12 General Electric Company Universal burning alkali metal vapor lamp with amalgam storage in exhaust tubulation
US4705987A (en) * 1985-10-03 1987-11-10 The United States Of America As Represented By The United States Department Of Energy Very high efficacy electrodeless high intensity discharge lamps

Also Published As

Publication number Publication date
CH223862A (de) 1942-10-15
NL56513C (enrdf_load_stackoverflow)
FR875391A (fr) 1942-09-18
GB601871A (en) 1948-05-13
US2330600A (en) 1943-09-28

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