JPS5447378A - Discharge lamp lighting apparatus - Google Patents

Discharge lamp lighting apparatus

Info

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
Application number
JP11302077A
Other languages
Japanese (ja)
Other versions
JPS5933957B2 (en
Inventor
Ken Ishikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP52113020A priority Critical patent/JPS5933957B2/en
Publication of JPS5447378A publication Critical patent/JPS5447378A/en
Publication of JPS5933957B2 publication Critical patent/JPS5933957B2/en
Expired legal-status Critical Current

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.
JP52113020A 1977-09-20 1977-09-20 discharge lamp lighting device Expired JPS5933957B2 (en)

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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
JPS5933957B2 (en) 1984-08-18

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