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GB177811A - Improvements in electric gas lamps with glow discharge - Google Patents

Improvements in electric gas lamps with glow discharge

Info

Publication number
GB177811A
GB177811A GB9521/22A GB952122A GB177811A GB 177811 A GB177811 A GB 177811A GB 9521/22 A GB9521/22 A GB 9521/22A GB 952122 A GB952122 A GB 952122A GB 177811 A GB177811 A GB 177811A
Authority
GB
United Kingdom
Prior art keywords
helium
per cent
mixture
neon
glow discharge
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
GB9521/22A
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of GB177811A publication Critical patent/GB177811A/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
    • H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
    • H01J61/16—Selection of substances for gas fillings; Specified operating pressure or temperature having helium, argon, neon, krypton, or xenon as the principle constituent

Landscapes

  • Discharge Lamp (AREA)

Abstract

177,811. Patent - Treuhand - Ges. f³r Elektrische Gl³hlampen, (Assignees of Studien Ges. f³r Elektrische Beleuchtung). April 4, 1921, [Convention date]. Vacuum tubes.-A glow discharge lamp contains a mixture of neon and helium in which the proportion of helium is much greater than that of a mixture obtained by fractionation of air, and is approximately that which secures the greatest ratio of light emitted to power consumed. The mixture is preferably 25 per cent neon and 75 per cent helium at a pressure of 10 mm. of mercury. It is stated that the mixture obtained by fractionation of air is 20 to 25 per cent helium and 80 to 75 per cent neon. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a mixture containing more than 30 per cent helium. This subject-matter does not appear in the Specification as accepted.
GB9521/22A 1921-04-04 1922-04-03 Improvements in electric gas lamps with glow discharge Expired GB177811A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE177811X 1921-04-04

Publications (1)

Publication Number Publication Date
GB177811A true GB177811A (en) 1923-03-22

Family

ID=5703284

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9521/22A Expired GB177811A (en) 1921-04-04 1922-04-03 Improvements in electric gas lamps with glow discharge

Country Status (1)

Country Link
GB (1) GB177811A (en)

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