GB391971A - Improvements in luminous electric discharge tubes - Google Patents

Improvements in luminous electric discharge tubes

Info

Publication number
GB391971A
GB391971A GB11883/32A GB1188332A GB391971A GB 391971 A GB391971 A GB 391971A GB 11883/32 A GB11883/32 A GB 11883/32A GB 1188332 A GB1188332 A GB 1188332A GB 391971 A GB391971 A GB 391971A
Authority
GB
United Kingdom
Prior art keywords
tube
vapours
electric discharge
discharge tubes
heated
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
GB11883/32A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Publication of GB391971A publication Critical patent/GB391971A/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
    • H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

391,971. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent-Treuhand-Ges. f³r Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin. April 25, 1932, No. 11883. Convention date, May 13, 1931. [Class 39 (i).] In luminous electric discharge tubes of the type provided with thermionic electrodes either discharge heated or heated by means of an auxiliary heater, and containing in addition to a gas filling, a metal vapour or vapours, the total pressure of the metal vapour or vapours is maintained at least 5 per cent lower than the sum of their saturation pressures corresponding to the minimum temperature of the tube by limiting the amount of the metal or metals introduced into the tube, the minimum temperature of the tube being taken as the temperature of the coolest part of the tube when it is in a state of steady operation.
GB11883/32A 1931-05-13 1932-04-25 Improvements in luminous electric discharge tubes Expired GB391971A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE391971X 1931-05-13

Publications (1)

Publication Number Publication Date
GB391971A true GB391971A (en) 1933-05-11

Family

ID=6382881

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11883/32A Expired GB391971A (en) 1931-05-13 1932-04-25 Improvements in luminous electric discharge tubes

Country Status (1)

Country Link
GB (1) GB391971A (en)

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