GB485274A - Improvements in or relating to high-pressure mercury-vapour discharge lamps - Google Patents

Improvements in or relating to high-pressure mercury-vapour discharge lamps

Info

Publication number
GB485274A
GB485274A GB30615/37A GB3061537A GB485274A GB 485274 A GB485274 A GB 485274A GB 30615/37 A GB30615/37 A GB 30615/37A GB 3061537 A GB3061537 A GB 3061537A GB 485274 A GB485274 A GB 485274A
Authority
GB
United Kingdom
Prior art keywords
mms
internal diameter
pressure
lamp
discharge lamps
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
GB30615/37A
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 GB485274A publication Critical patent/GB485274A/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
    • H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
    • H01J61/822—High-pressure mercury lamps

Landscapes

  • Discharge Lamp (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
GB30615/37A 1936-11-10 1937-11-08 Improvements in or relating to high-pressure mercury-vapour discharge lamps Expired GB485274A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE485274X 1936-11-10

Publications (1)

Publication Number Publication Date
GB485274A true GB485274A (en) 1938-05-17

Family

ID=6543262

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30615/37A Expired GB485274A (en) 1936-11-10 1937-11-08 Improvements in or relating to high-pressure mercury-vapour discharge lamps

Country Status (4)

Country Link
US (1) US2135702A (enrdf_load_stackoverflow)
BE (1) BE424532A (enrdf_load_stackoverflow)
FR (1) FR828966A (enrdf_load_stackoverflow)
GB (1) GB485274A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR983744A (fr) * 1948-03-27 1951-06-27 Lampes Sa Lampe à vapeur de mercure à haute pression
JPS54120973A (en) * 1978-03-10 1979-09-19 Mitsubishi Electric Corp Lighting apparatus

Also Published As

Publication number Publication date
FR828966A (fr) 1938-06-07
BE424532A (enrdf_load_stackoverflow)
US2135702A (en) 1938-11-08

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