JPS55143546A - Flash electric discharge device - Google Patents
Flash electric discharge deviceInfo
- 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
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.
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)
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 |
-
1979
- 1979-04-26 JP JP5209279A patent/JPS55143546A/en active Granted
Cited By (11)
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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