JPS5574522A - Synchronous light emission system of strobe flash device - Google Patents
Synchronous light emission system of strobe flash deviceInfo
- Publication number
- JPS5574522A JPS5574522A JP14763478A JP14763478A JPS5574522A JP S5574522 A JPS5574522 A JP S5574522A JP 14763478 A JP14763478 A JP 14763478A JP 14763478 A JP14763478 A JP 14763478A JP S5574522 A JPS5574522 A JP S5574522A
- Authority
- JP
- Japan
- Prior art keywords
- shutter
- magnet
- capacitor
- flash device
- pulled
- 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
Landscapes
- Stroboscope Apparatuses (AREA)
- Shutter-Related Mechanisms (AREA)
Abstract
PURPOSE: To accomplish sure synchronization at the optimum opening of an electronic shutter by using an electrical synchronizing means.
CONSTITUTION: A strobe flash device B provided with the differentiating circuit consisting of a switching element SCR controlling lighting of a discharge lamp Xe, a capacitor C and a resistance R3 is connected to an electronic shutter control circuit A. If with this arrangement a shutter button is depressed, a power source switch SW1 goes on to energize a magnet 10 by which a rear curtain is held and a front curtain is pulled, whereby exposure is started. At the same time, an integrating capacitor C1 is charged. When its charging voltage reaches the specified value, the magnet 10 is de-energized, by which the rear curtain is pulled and shielding is accomplished. At the same time, the switching element SCR conducts, causing the discharge lamp Xe to emit light in perfect synchronization with the full opening time of the shutter by way of the mechanical delay of the closing operation of the shutter by the magnet 10 by the charged charges of the main capacitor C4.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14763478A JPS5574522A (en) | 1978-11-29 | 1978-11-29 | Synchronous light emission system of strobe flash device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14763478A JPS5574522A (en) | 1978-11-29 | 1978-11-29 | Synchronous light emission system of strobe flash device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5574522A true JPS5574522A (en) | 1980-06-05 |
Family
ID=15434759
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14763478A Pending JPS5574522A (en) | 1978-11-29 | 1978-11-29 | Synchronous light emission system of strobe flash device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5574522A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57139725A (en) * | 1981-02-23 | 1982-08-28 | Seiko Koki Kk | Shutter controlling circuit incorporating dimming signal circuit of flash |
JPH0351429U (en) * | 1990-08-22 | 1991-05-20 |
-
1978
- 1978-11-29 JP JP14763478A patent/JPS5574522A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57139725A (en) * | 1981-02-23 | 1982-08-28 | Seiko Koki Kk | Shutter controlling circuit incorporating dimming signal circuit of flash |
JPH0351429U (en) * | 1990-08-22 | 1991-05-20 | ||
JPH052905Y2 (en) * | 1990-08-22 | 1993-01-25 |
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