GB437323A - Improvements in electric discharge devices comprising luminescent materials - Google Patents
Improvements in electric discharge devices comprising luminescent materialsInfo
- Publication number
- GB437323A GB437323A GB2972634A GB2972634A GB437323A GB 437323 A GB437323 A GB 437323A GB 2972634 A GB2972634 A GB 2972634A GB 2972634 A GB2972634 A GB 2972634A GB 437323 A GB437323 A GB 437323A
- Authority
- GB
- United Kingdom
- Prior art keywords
- luminescent material
- cathode
- electric discharge
- luminescent materials
- discharge devices
- 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
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/04—Electrodes; Screens
- H01J17/06—Cathodes
- H01J17/066—Cold cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
- H01J2893/0065—Electrode systems
- H01J2893/0066—Construction, material, support, protection and temperature regulation of electrodes; Electrode cups
Landscapes
- Luminescent Compositions (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
437,323. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Patent - Treuhand - Ges. f³r Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin) Oct. 17, 1934, No. 29726. [Class 39 (i)] A discharge device comprises a non-thermionic cathode which carries luminescent material and also a material, such as alkaline earth metals and compounds thereof, which prolongs the life of the luminescent material by reducing the cathode drop. The material reducing the cathode fall may be placed under or beside, or mixed with, or cover in the form of a transparent layer, the luminescent material. The electrodes may be grid-shaped, and the filling may consist of gas or vapour or mixtures thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2972634A GB437323A (en) | 1934-10-17 | 1934-10-17 | Improvements in electric discharge devices comprising luminescent materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2972634A GB437323A (en) | 1934-10-17 | 1934-10-17 | Improvements in electric discharge devices comprising luminescent materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB437323A true GB437323A (en) | 1935-10-28 |
Family
ID=10296140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2972634A Expired GB437323A (en) | 1934-10-17 | 1934-10-17 | Improvements in electric discharge devices comprising luminescent materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB437323A (en) |
-
1934
- 1934-10-17 GB GB2972634A patent/GB437323A/en not_active Expired
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