JPS563960A - Electrode for discharge lamp - Google Patents
Electrode for discharge lampInfo
- Publication number
- JPS563960A JPS563960A JP7886879A JP7886879A JPS563960A JP S563960 A JPS563960 A JP S563960A JP 7886879 A JP7886879 A JP 7886879A JP 7886879 A JP7886879 A JP 7886879A JP S563960 A JPS563960 A JP S563960A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- yttrium oxide
- lanthanum oxide
- discharge lamp
- blacking
- 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.)
- Pending
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
- H01J61/04—Electrodes; Screens; Shields
- H01J61/06—Main electrodes
Landscapes
- Discharge Lamp (AREA)
Abstract
PURPOSE:To lessen the blacking of the tube end portion of a lamp by coating an electrode base with an electron-radiating substance containing a specific amount of lanthanum oxide on the basis of yttrium oxide contained. CONSTITUTION:An electrode for discharge lamp is formed by coating an electrode base with an electron-radiating substance containing 10 to 90mol% lanthanum oxide on the basis of yttrium oxide contained. The combined use of lanthanum oxide having a high heat resistance even when used solely and yttrium oxide enables radiation of electrons to enhance because of the formation of mixed crystals or double compound. In addition, without alkaline earth metal oxides, the radiation of electrons and starting voltage characteristic can be improved and also the blacking of the tube end portion can be lessened.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7886879A JPS563960A (en) | 1979-06-22 | 1979-06-22 | Electrode for discharge lamp |
DE2951741A DE2951741C2 (en) | 1978-12-29 | 1979-12-21 | Electrode for a discharge lamp |
NLAANVRAGE7909301,A NL187876C (en) | 1978-12-29 | 1979-12-22 | ELECTRODE FOR A GAS DISCHARGE LAMP. |
US06/108,173 US4319158A (en) | 1978-12-29 | 1979-12-28 | Electrode for discharge lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7886879A JPS563960A (en) | 1979-06-22 | 1979-06-22 | Electrode for discharge lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS563960A true JPS563960A (en) | 1981-01-16 |
Family
ID=13673793
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7886879A Pending JPS563960A (en) | 1978-12-29 | 1979-06-22 | Electrode for discharge lamp |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS563960A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997005639A1 (en) * | 1995-07-31 | 1997-02-13 | Casio Computer Co., Ltd. | Electron-emitting electrode, method of manufacturing the same, and light-emitting device having the same |
-
1979
- 1979-06-22 JP JP7886879A patent/JPS563960A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997005639A1 (en) * | 1995-07-31 | 1997-02-13 | Casio Computer Co., Ltd. | Electron-emitting electrode, method of manufacturing the same, and light-emitting device having the same |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1533507A (en) | Luminescent materials | |
SE7601812L (en) | STORAGE CATHOD | |
JPS5367972A (en) | Electrode for elctric discharge lamp | |
JPS563960A (en) | Electrode for discharge lamp | |
JPS6489242A (en) | Electrode for discharge light source | |
JPS5778765A (en) | Fluorescent glow discharge lamp | |
JPS563961A (en) | Electrode for discharge lamp | |
JPS55155457A (en) | Discharge lamp | |
JPS569958A (en) | Metal vapour discharge lamp | |
JPS54131861A (en) | Direct-heated cathode for electric discharge tube | |
JPS563959A (en) | Electrode for discharge lamp | |
JPS5641666A (en) | Electrode for discharge lamp | |
JPS5573776A (en) | Low-speed electron beam-exciting fluorescent substance and fluorescent display device provided with the same | |
JPS5228859A (en) | Green fluorescent display tube excited by slow electron bemm | |
JPS5342473A (en) | Metal vapor discharge lamp | |
JPS5331385A (en) | Electron-emitting substance and high voltage discharge lamp using the same | |
JPS5250198A (en) | Display device | |
JPS5264174A (en) | Metallic vapor discharge lamp | |
JPS5239977A (en) | Sintered electrode for discharge lamp | |
JPS5239976A (en) | Sintered electrode for discharge lamp | |
JPS56102032A (en) | Impregnated cathode | |
JPS5645542A (en) | Oxide cathode and its preparation | |
JPS52113579A (en) | High pressure metal vapor discharge lamp | |
JPS57182381A (en) | Green light-emitting material | |
JPS53139375A (en) | Electrode for discharge lamp |