JPS5670538A - System and device for wireless control over automatic dimming multilighting flash - Google Patents
System and device for wireless control over automatic dimming multilighting flashInfo
- 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
Links
Landscapes
- Stroboscope Apparatuses (AREA)
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
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)
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)
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 |
-
1979
- 1979-11-15 JP JP14707279A patent/JPS5670538A/en active Pending
Patent Citations (2)
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)
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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