JPS5670538A - System and device for wireless control over automatic dimming multilighting flash - Google Patents

System and device for wireless control over automatic dimming multilighting flash

Info

Publication number
JPS5670538A
JPS5670538A JP14707279A JP14707279A JPS5670538A JP S5670538 A JPS5670538 A JP S5670538A JP 14707279 A JP14707279 A JP 14707279A JP 14707279 A JP14707279 A JP 14707279A JP S5670538 A JPS5670538 A JP S5670538A
Authority
JP
Japan
Prior art keywords
flash
electronic flash
sub
automatic dimming
main
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
JP14707279A
Other languages
Japanese (ja)
Inventor
Koji Matsushima
Kazuo Shiozawa
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP14707279A priority Critical patent/JPS5670538A/en
Publication of JPS5670538A publication Critical patent/JPS5670538A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To enable a simple constitution to secure photography in which main and sub selectronic flashes are used, by coupling the main automatic dimming electronic flash with sub electronic flash through electromagnetic-wave transmission and reception and by controlling them.
CONSTITUTION: The main automatic dimming electronic flash and sub electronic flash are electromagnetically coupled multually by transmitter 13, transmitting antenna 14, the receiver, and receiving antenna. When trigger circuit 7 triggers thyristor 8 and flash bulb 5 of the main automatic dimming electronic flash interlocking with the shutter to flash, the output of monostable multivibrator 12 by the trigger output of circuit 7 is transmitted from transmitting antenna 14 and received by the receiving antenna of the sub electronic flash, so that the sub electronic flash will start flashing. Then, reflected lights of both the electronic flashes from an object are photodetected by photodetection part 11a of the main electronic flash and integrated and when the value reaches a prescribed value, the sub electronic flash stops the flahing operation according to the transmission and reception of a flashing stop signal while the flashing of flash bulb 5 is stopped.
COPYRIGHT: (C)1981,JPO&Japio
JP14707279A 1979-11-15 1979-11-15 System and device for wireless control over automatic dimming multilighting flash Pending JPS5670538A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14707279A JPS5670538A (en) 1979-11-15 1979-11-15 System and device for wireless control over automatic dimming multilighting flash

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14707279A JPS5670538A (en) 1979-11-15 1979-11-15 System and device for wireless control over automatic dimming multilighting flash

Publications (1)

Publication Number Publication Date
JPS5670538A true JPS5670538A (en) 1981-06-12

Family

ID=15421828

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14707279A Pending JPS5670538A (en) 1979-11-15 1979-11-15 System and device for wireless control over automatic dimming multilighting flash

Country Status (1)

Country Link
JP (1) JPS5670538A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5756831A (en) * 1980-09-24 1982-04-05 Nippon Kogaku Kk <Nikon> Wireless dimming control system
US5283610A (en) * 1992-03-23 1994-02-01 Olympus Optical Co., Ltd. Camera system having communication function between camera main body and flash device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5194820A (en) * 1975-02-18 1976-08-19
JPS53116150A (en) * 1977-03-18 1978-10-11 West Electric Co Electrooflashing device for increasing lamps

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5194820A (en) * 1975-02-18 1976-08-19
JPS53116150A (en) * 1977-03-18 1978-10-11 West Electric Co Electrooflashing device for increasing lamps

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5756831A (en) * 1980-09-24 1982-04-05 Nippon Kogaku Kk <Nikon> Wireless dimming control system
US5283610A (en) * 1992-03-23 1994-02-01 Olympus Optical Co., Ltd. Camera system having communication function between camera main body and flash device

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