JPS5756830A - Wireless lamp increasing system - Google Patents

Wireless lamp increasing system

Info

Publication number
JPS5756830A
JPS5756830A JP55132645A JP13264580A JPS5756830A JP S5756830 A JPS5756830 A JP S5756830A JP 55132645 A JP55132645 A JP 55132645A JP 13264580 A JP13264580 A JP 13264580A JP S5756830 A JPS5756830 A JP S5756830A
Authority
JP
Japan
Prior art keywords
light emission
stroboscopic lamp
slave
master
period
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
JP55132645A
Other languages
Japanese (ja)
Inventor
Shingi Hagiuda
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.)
Nikon Corp
Original Assignee
Nikon Corp
Nippon Kogaku KK
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 Nikon Corp, Nippon Kogaku KK filed Critical Nikon Corp
Priority to JP55132645A priority Critical patent/JPS5756830A/en
Publication of JPS5756830A publication Critical patent/JPS5756830A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/03—Combinations of cameras with lighting apparatus; Flash units
    • G03B15/05—Combinations of cameras with electronic flash apparatus; Electronic flash units
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2215/00—Special procedures for taking photographs; Apparatus therefor
    • G03B2215/05—Combinations of cameras with electronic flash units
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2215/00—Special procedures for taking photographs; Apparatus therefor
    • G03B2215/05—Combinations of cameras with electronic flash units
    • G03B2215/0514—Separate unit
    • G03B2215/0557—Multiple units, e.g. slave-unit

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Stroboscope Apparatuses (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)

Abstract

PURPOSE:To prevent a light emission error of a slave stroboscopic lamp, by emitting the slave stroscopic lamp only when the next photodetecion has been executed in a prescribed period from the first photodetection, and detecting the stand-by light emission of a master stroboscopic lamp and its regular light emission after a prescribed time has elapsed. CONSTITUTION:When a photodetecting element 301 detects the stand-by light emission of a master stroboscopic lamp, an output of an AC amplifier 300 becomes an L level, and is changed to an H level when the light emission is stopped. As a result, the first timer 400 is triggered, the first switching circuit 500 becomes an operating state only for a period T2, and when regular light emission occurs within this period, an H level output is generated by receiving an output signal of the amplifier 300, and SCRs 11' 20' of the light emitting circuit are made conductive. In this way, a slave stroboscopic lamp starts to emit light. The third switching circuit 900 outputs a signal for stopping the light emission of the slave stroboscopic lamp, when the light emission of the master stroboscopic lamp is stopped.
JP55132645A 1980-09-24 1980-09-24 Wireless lamp increasing system Pending JPS5756830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55132645A JPS5756830A (en) 1980-09-24 1980-09-24 Wireless lamp increasing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55132645A JPS5756830A (en) 1980-09-24 1980-09-24 Wireless lamp increasing system

Publications (1)

Publication Number Publication Date
JPS5756830A true JPS5756830A (en) 1982-04-05

Family

ID=15086161

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55132645A Pending JPS5756830A (en) 1980-09-24 1980-09-24 Wireless lamp increasing system

Country Status (1)

Country Link
JP (1) JPS5756830A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5283610A (en) * 1992-03-23 1994-02-01 Olympus Optical Co., Ltd. Camera system having communication function between camera main body and flash device
US5384611A (en) * 1991-05-20 1995-01-24 Minolta Camera Kabushiki Kaisha Camera system capable of wireless flash photographing
JP2007298880A (en) * 2006-05-02 2007-11-15 C & C:Kk Stroboscopic equipment and program

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5384611A (en) * 1991-05-20 1995-01-24 Minolta Camera Kabushiki Kaisha Camera system capable of wireless flash photographing
US5283610A (en) * 1992-03-23 1994-02-01 Olympus Optical Co., Ltd. Camera system having communication function between camera main body and flash device
JP2007298880A (en) * 2006-05-02 2007-11-15 C & C:Kk Stroboscopic equipment and program

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