JPS5648064A - Gas discharge lamp - Google Patents
Gas discharge lampInfo
- Publication number
- JPS5648064A JPS5648064A JP12364679A JP12364679A JPS5648064A JP S5648064 A JPS5648064 A JP S5648064A JP 12364679 A JP12364679 A JP 12364679A JP 12364679 A JP12364679 A JP 12364679A JP S5648064 A JPS5648064 A JP S5648064A
- Authority
- JP
- Japan
- Prior art keywords
- gas discharge
- discharge lamp
- lamp
- electrically
- voltage
- 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
- H01J61/92—Lamps with more than one main discharge path
Landscapes
- Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
Abstract
PURPOSE:To prevent a lamp from failing completely by providing two gas discharge lamps connected electrically in parallel in an outer tube. CONSTITUTION:Two gas discharge lamps 1, 2 are provided in an outer tube 22. The gas discharge lamp 1 is for high voltage discharge, and the gas discharge lamp 2 is connected to the discharge lamp 1 electrically in parallel. An impedance element 7 is connected to the gas discharge lamp 2 electrically in series, and the relation between the terminal voltage V0 of a circuit including the gas discharge lamp 2 and impedance element 7 and the light starting voltage Vs is so established that it satisfys Vo>=Vs. The gas discharge lamp 1 is lighted by connecting the gas discharge lamp 25 to a source 24 through a stabilizer 23. When the discharge lamp 1 fails to light due to a depression of the source voltage, the gas discharge lamp 2 starts to light.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12364679A JPS5648064A (en) | 1979-09-26 | 1979-09-26 | Gas discharge lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12364679A JPS5648064A (en) | 1979-09-26 | 1979-09-26 | Gas discharge lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5648064A true JPS5648064A (en) | 1981-05-01 |
Family
ID=14865740
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12364679A Pending JPS5648064A (en) | 1979-09-26 | 1979-09-26 | Gas discharge lamp |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5648064A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1037201C2 (en) * | 2009-08-13 | 2011-02-15 | J M Geluk Beheer B V | Gas discharge type lighting device. |
-
1979
- 1979-09-26 JP JP12364679A patent/JPS5648064A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1037201C2 (en) * | 2009-08-13 | 2011-02-15 | J M Geluk Beheer B V | Gas discharge type lighting device. |
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