JPS5574522A - Synchronous light emission system of strobe flash device - Google Patents

Synchronous light emission system of strobe flash device

Info

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
Application number
JP14763478A
Other languages
Japanese (ja)
Inventor
Yasuo Nakayama
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.)
Morris Photo Industry Co Ltd
Original Assignee
Morris Photo Industry 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 Morris Photo Industry Co Ltd filed Critical Morris Photo Industry Co Ltd
Priority to JP14763478A priority Critical patent/JPS5574522A/en
Publication of JPS5574522A publication Critical patent/JPS5574522A/en
Pending legal-status Critical Current

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
JP14763478A 1978-11-29 1978-11-29 Synchronous light emission system of strobe flash device Pending JPS5574522A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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