JPS55143546A - Flash electric discharge device - Google Patents

Flash electric discharge device

Info

Publication number
JPS55143546A
JPS55143546A JP5209279A JP5209279A JPS55143546A JP S55143546 A JPS55143546 A JP S55143546A JP 5209279 A JP5209279 A JP 5209279A JP 5209279 A JP5209279 A JP 5209279A JP S55143546 A JPS55143546 A JP S55143546A
Authority
JP
Japan
Prior art keywords
charge
discharge
switch
voltage
capacitor
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
JP5209279A
Other languages
Japanese (ja)
Other versions
JPH0158495B2 (en
Inventor
Masataka Ozawa
Kazutaka Koyama
Hideo Nishiyama
Shigeru Horii
Tsunetaka Kawai
Toyoji Murakami
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP5209279A priority Critical patent/JPS55143546A/en
Publication of JPS55143546A publication Critical patent/JPS55143546A/en
Publication of JPH0158495B2 publication Critical patent/JPH0158495B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Fixing For Electrophotography (AREA)
  • Stroboscope Apparatuses (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)

Abstract

PURPOSE:To prevent continuous electric discharge after flash discharge, by providing a charge control circuit and operating an electric power source switch. CONSTITUTION:When a charge start operation switch 16 is closed, a power switch 6 is closed when the charged voltage is low to charge, and when the charged voltage in a discharge capacitor 8 reaches a specified value, the output voltage of a capacitor voltage detecting circuit 9 becomes larger than the output voltage of a charge completion reference voltage generating circuit 13. As a result, a charge completion voltage comparator 12 operates to open the switch 6 through an AND gate 15. A trigger pulse is applied from a trigger pulse generating circuit 11 to a flash discharge tube 10, and the electric charge in the capacitor 8 is applied to the discharge tube 10 discharge a flash. As a result of this discharge, when the voltage in the capacitor 8 declines below a specified value, a charge break timer circuit 14 issues a signal to open the switch 6 for specified time through the gate 15. When the charge break signal stops after elapse of specified time, the switch 6 is closed to start charging into the capacitor 8. By this charge pause for specified time, the residual ions in the discharge tube 10 are extinguished, so that continuous discharge may be prevented.
JP5209279A 1979-04-26 1979-04-26 Flash electric discharge device Granted JPS55143546A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5209279A JPS55143546A (en) 1979-04-26 1979-04-26 Flash electric discharge device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5209279A JPS55143546A (en) 1979-04-26 1979-04-26 Flash electric discharge device

Publications (2)

Publication Number Publication Date
JPS55143546A true JPS55143546A (en) 1980-11-08
JPH0158495B2 JPH0158495B2 (en) 1989-12-12

Family

ID=12905183

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5209279A Granted JPS55143546A (en) 1979-04-26 1979-04-26 Flash electric discharge device

Country Status (1)

Country Link
JP (1) JPS55143546A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56122018A (en) * 1980-02-29 1981-09-25 Olympus Optical Co Ltd Power supply circuit of stroboscopic device
JPS57144533A (en) * 1981-03-02 1982-09-07 Olympus Optical Co Ltd Strobe device
JPS58178386A (en) * 1982-04-14 1983-10-19 Ushio Inc Toner fixation device
JPS6033579A (en) * 1983-08-04 1985-02-20 Ushio Inc Toner fixing device
JPS60108860A (en) * 1983-11-18 1985-06-14 Mita Ind Co Ltd Laminated electrophotographic sensitive body
JPS616878U (en) * 1984-06-20 1986-01-16 ウシオ電機株式会社 Flash fixing device
JPS616877U (en) * 1984-06-20 1986-01-16 ウシオ電機株式会社 Flash fixing device
JPS616871U (en) * 1984-06-20 1986-01-16 株式会社リコー Flash fixing device
JPS616879U (en) * 1984-06-20 1986-01-16 ウシオ電機株式会社 Flash fixing device
JPS6377075A (en) * 1986-09-19 1988-04-07 Hitachi Koki Co Ltd Flash fixing device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56122018A (en) * 1980-02-29 1981-09-25 Olympus Optical Co Ltd Power supply circuit of stroboscopic device
JPS57144533A (en) * 1981-03-02 1982-09-07 Olympus Optical Co Ltd Strobe device
JPS58178386A (en) * 1982-04-14 1983-10-19 Ushio Inc Toner fixation device
JPS6033579A (en) * 1983-08-04 1985-02-20 Ushio Inc Toner fixing device
JPH0415954B2 (en) * 1983-08-04 1992-03-19 Ushio Electric Inc
JPS60108860A (en) * 1983-11-18 1985-06-14 Mita Ind Co Ltd Laminated electrophotographic sensitive body
JPS616878U (en) * 1984-06-20 1986-01-16 ウシオ電機株式会社 Flash fixing device
JPS616877U (en) * 1984-06-20 1986-01-16 ウシオ電機株式会社 Flash fixing device
JPS616871U (en) * 1984-06-20 1986-01-16 株式会社リコー Flash fixing device
JPS616879U (en) * 1984-06-20 1986-01-16 ウシオ電機株式会社 Flash fixing device
JPS6377075A (en) * 1986-09-19 1988-04-07 Hitachi Koki Co Ltd Flash fixing device

Also Published As

Publication number Publication date
JPH0158495B2 (en) 1989-12-12

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