JPS5447378A - Discharge lamp lighting apparatus - Google Patents
Discharge lamp lighting apparatusInfo
- Publication number
- JPS5447378A JPS5447378A JP11302077A JP11302077A JPS5447378A JP S5447378 A JPS5447378 A JP S5447378A JP 11302077 A JP11302077 A JP 11302077A JP 11302077 A JP11302077 A JP 11302077A JP S5447378 A JPS5447378 A JP S5447378A
- Authority
- JP
- Japan
- Prior art keywords
- discharge
- capacitor
- switching element
- discharge lamp
- 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.)
- Granted
Links
Landscapes
- Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
- Lasers (AREA)
Abstract
PURPOSE:To provide a discharge lamp lighting apparatus, capable of causing pulse lighting of the lamp repeatedly at a high speed, by employing a second switching element for rapidly discharging the electricity charged in charge-and-discharge capacitor and interrupting a first switching element in the main discharge circuit. CONSTITUTION:When a second switching element SCR18 is ignited, electricity charged previously in capacitor 14 to a high voltage is discharged rapidily to discharge lamp 16. As a result, voltage of capacitor 14 is impressed on the cathode of a first switching element SCR17, so that SCR17 is interrupted by reverse biasing. Here, impedance of the discharge lamp 16 is decreased to a fairly low value by resson of the discharge, so that charging voltage of capacitor 14 is reduced to zero or to a negative value in a short while. Therefore, it is enabled to proceed immediately to the next discharge cycle and thus to cause pulse lighting at a high speed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52113020A JPS5933957B2 (en) | 1977-09-20 | 1977-09-20 | discharge lamp lighting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52113020A JPS5933957B2 (en) | 1977-09-20 | 1977-09-20 | discharge lamp lighting device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5447378A true JPS5447378A (en) | 1979-04-13 |
JPS5933957B2 JPS5933957B2 (en) | 1984-08-18 |
Family
ID=14601420
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52113020A Expired JPS5933957B2 (en) | 1977-09-20 | 1977-09-20 | discharge lamp lighting device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5933957B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63156168A (en) * | 1986-12-20 | 1988-06-29 | 多川工業株式会社 | Method of indoor overhauling construction of reinforced concrete building |
JP7164307B2 (en) | 2017-04-10 | 2022-11-01 | スリーエム イノベイティブ プロパティズ カンパニー | Adhesive sheet and method of applying adhesive sheet to rough surface |
-
1977
- 1977-09-20 JP JP52113020A patent/JPS5933957B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5933957B2 (en) | 1984-08-18 |
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