JPS54141624A - Multi light emission type auto strobe - Google Patents

Multi light emission type auto strobe

Info

Publication number
JPS54141624A
JPS54141624A JP5042878A JP5042878A JPS54141624A JP S54141624 A JPS54141624 A JP S54141624A JP 5042878 A JP5042878 A JP 5042878A JP 5042878 A JP5042878 A JP 5042878A JP S54141624 A JPS54141624 A JP S54141624A
Authority
JP
Japan
Prior art keywords
flash
light
emission
flash tube
results
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
JP5042878A
Other languages
Japanese (ja)
Inventor
Saburo Numata
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.)
Fujinon Corp
Original Assignee
Fuji Photo Optical 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 Fuji Photo Optical Co Ltd filed Critical Fuji Photo Optical Co Ltd
Priority to JP5042878A priority Critical patent/JPS54141624A/en
Publication of JPS54141624A publication Critical patent/JPS54141624A/en
Pending legal-status Critical Current

Links

Landscapes

  • Stroboscope Apparatuses (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)

Abstract

PURPOSE:To obtain optimum exposure by dividing the output having operated the aperture value of a camera and the sensitivity value of a film according to the flashing times of a flash tube and performing integration according to the results of operation of these voltages and the voltage corresponding to the quantity of flash light. CONSTITUTION:At the photographing, a flash tube emits light repeatedly according to flash times and the reflected light from the subject is measured in a photo sensor 2, thence the light quantity signal from a photometric circuit 1 and the operation signal of the aperture and film sensitivity from a potentiometer 10 are inputted to an integrating circuit 11, where they are integrated and the current corresponding to the results of these operations flows. When the voltage of a capacitor 13 reaches the specified level, a comparator 14 inverts to send the emission stop signal to a emission control circuit, thus stopping the emission of the flash tube. Since this enables the quantity of light memission to be controlled according to flash times, the inadequate exposure owing to the reciprocity law failure of photographic films may be eliminated.
JP5042878A 1978-04-27 1978-04-27 Multi light emission type auto strobe Pending JPS54141624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5042878A JPS54141624A (en) 1978-04-27 1978-04-27 Multi light emission type auto strobe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5042878A JPS54141624A (en) 1978-04-27 1978-04-27 Multi light emission type auto strobe

Publications (1)

Publication Number Publication Date
JPS54141624A true JPS54141624A (en) 1979-11-05

Family

ID=12858587

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5042878A Pending JPS54141624A (en) 1978-04-27 1978-04-27 Multi light emission type auto strobe

Country Status (1)

Country Link
JP (1) JPS54141624A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5821721A (en) * 1981-07-31 1983-02-08 Nippon Kogaku Kk <Nikon> Display device for flash photographing
JPS5821722A (en) * 1981-07-31 1983-02-08 Nippon Kogaku Kk <Nikon> Display device for flash photographing
JPS5855917A (en) * 1981-09-29 1983-04-02 Nippon Kogaku Kk <Nikon> Flash emitting device which can emit flash continuously
JPS59228639A (en) * 1983-06-10 1984-12-22 Olympus Optical Co Ltd Controller for quantity of light of multiple light emission strobe
JPH01155034U (en) * 1988-04-12 1989-10-25
KR100450085B1 (en) * 2002-08-16 2004-09-30 삼성테크윈 주식회사 Flash control apparatus utilizing characteristic of logarithmic function

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5821721A (en) * 1981-07-31 1983-02-08 Nippon Kogaku Kk <Nikon> Display device for flash photographing
JPS5821722A (en) * 1981-07-31 1983-02-08 Nippon Kogaku Kk <Nikon> Display device for flash photographing
JPH0522891B2 (en) * 1981-07-31 1993-03-31 Nippon Kogaku Kk
JPS5855917A (en) * 1981-09-29 1983-04-02 Nippon Kogaku Kk <Nikon> Flash emitting device which can emit flash continuously
JPH0522894B2 (en) * 1981-09-29 1993-03-31 Nippon Kogaku Kk
JPS59228639A (en) * 1983-06-10 1984-12-22 Olympus Optical Co Ltd Controller for quantity of light of multiple light emission strobe
JPH0462369B2 (en) * 1983-06-10 1992-10-06 Olympus Optical Co
JPH01155034U (en) * 1988-04-12 1989-10-25
KR100450085B1 (en) * 2002-08-16 2004-09-30 삼성테크윈 주식회사 Flash control apparatus utilizing characteristic of logarithmic function

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