JPS56128929A - Control system of automatic dimming system electronic flash - Google Patents

Control system of automatic dimming system electronic flash

Info

Publication number
JPS56128929A
JPS56128929A JP3163380A JP3163380A JPS56128929A JP S56128929 A JPS56128929 A JP S56128929A JP 3163380 A JP3163380 A JP 3163380A JP 3163380 A JP3163380 A JP 3163380A JP S56128929 A JPS56128929 A JP S56128929A
Authority
JP
Japan
Prior art keywords
adapter
attachment
level
automatic dimming
dimming
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
JP3163380A
Other languages
Japanese (ja)
Inventor
Kazuo Makimura
Kazuhiro Okada
Nagamasa Yoshida
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.)
Mamiya Camera Co Ltd
Original Assignee
Mamiya Camera 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 Mamiya Camera Co Ltd filed Critical Mamiya Camera Co Ltd
Priority to JP3163380A priority Critical patent/JPS56128929A/en
Publication of JPS56128929A publication Critical patent/JPS56128929A/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
    • G03B2215/0582—Reflectors
    • 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
    • G03B2215/0589—Diffusors, filters or refraction means
    • G03B2215/0592—Diffusors, filters or refraction means installed in front of light emitter

Abstract

PURPOSE:To enable automatic dimming which keeps the level of reflected light equal without reference to the attachment of an adapter, by selecting a lighting type dimming level correction part when the adapter is attached. CONSTITUTION:According to the attachment of a wide-angle adapter or telephotographic adapter 24, switches S1 and S2 are controlled to turn on-off, and the quantity of flashing of xenon lamp 10 varies to correct the lighting dimming level. Consequently, the reflected light level is constant without reference to the attachment of the adapter and lighting type automatic dimming is carried out easily and securely without correcting operation. Similarly, the same result is obtained by selectively changing light current integrating capacitors, gains of the light current integrating network, positions of the photodetection quantity attenuation plate, addition and subtraction correction values in arithmetic, other flashing bodies, etc.
JP3163380A 1980-03-14 1980-03-14 Control system of automatic dimming system electronic flash Pending JPS56128929A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3163380A JPS56128929A (en) 1980-03-14 1980-03-14 Control system of automatic dimming system electronic flash

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3163380A JPS56128929A (en) 1980-03-14 1980-03-14 Control system of automatic dimming system electronic flash

Publications (1)

Publication Number Publication Date
JPS56128929A true JPS56128929A (en) 1981-10-08

Family

ID=12336607

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3163380A Pending JPS56128929A (en) 1980-03-14 1980-03-14 Control system of automatic dimming system electronic flash

Country Status (1)

Country Link
JP (1) JPS56128929A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60107026A (en) * 1983-11-15 1985-06-12 West Electric Co Ltd Automatic dimming strobe device
JPS61269130A (en) * 1985-05-24 1986-11-28 Konishiroku Photo Ind Co Ltd Device for controlling emission of stroboscopic emission of camera

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5288334A (en) * 1976-01-20 1977-07-23 West Electric Co Electronic flash unit
JPS53109622A (en) * 1977-03-07 1978-09-25 Minolta Camera Co Ltd Lens exchanging type flash built-in camera
JPS5446550A (en) * 1977-09-20 1979-04-12 West Electric Co Light quantity correcting apparatus of automatic light adjusting strobo apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5288334A (en) * 1976-01-20 1977-07-23 West Electric Co Electronic flash unit
JPS53109622A (en) * 1977-03-07 1978-09-25 Minolta Camera Co Ltd Lens exchanging type flash built-in camera
JPS5446550A (en) * 1977-09-20 1979-04-12 West Electric Co Light quantity correcting apparatus of automatic light adjusting strobo apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60107026A (en) * 1983-11-15 1985-06-12 West Electric Co Ltd Automatic dimming strobe device
JPH0548455B2 (en) * 1983-11-15 1993-07-21 West Electric Co
JPS61269130A (en) * 1985-05-24 1986-11-28 Konishiroku Photo Ind Co Ltd Device for controlling emission of stroboscopic emission of camera
JPH0455485B2 (en) * 1985-05-24 1992-09-03 Konishiroku Photo Ind

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