GB391971A - Improvements in luminous electric discharge tubes - Google Patents
Improvements in luminous electric discharge tubesInfo
- 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
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.
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) |
-
1932
- 1932-04-25 GB GB11883/32A patent/GB391971A/en not_active Expired
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