JPS56128928A - Flash emitter with double lamp - Google Patents

Flash emitter with double lamp

Info

Publication number
JPS56128928A
JPS56128928A JP3155080A JP3155080A JPS56128928A JP S56128928 A JPS56128928 A JP S56128928A JP 3155080 A JP3155080 A JP 3155080A JP 3155080 A JP3155080 A JP 3155080A JP S56128928 A JPS56128928 A JP S56128928A
Authority
JP
Japan
Prior art keywords
light
flash bulb
exposure
photometric circuit
bulb
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
JP3155080A
Other languages
Japanese (ja)
Inventor
Hideo Yagi
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.)
Sun Pack Co Ltd
Sunpak KK
Original Assignee
Sun Pack Co Ltd
Sunpak 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 Sun Pack Co Ltd, Sunpak KK filed Critical Sun Pack Co Ltd
Priority to JP3155080A priority Critical patent/JPS56128928A/en
Priority to GB8032364A priority patent/GB2061535B/en
Priority to CA000362077A priority patent/CA1192941A/en
Priority to US06/197,473 priority patent/US4360764A/en
Priority to DE3039858A priority patent/DE3039858C2/en
Priority to FR8022675A priority patent/FR2469083B1/en
Publication of JPS56128928A publication Critical patent/JPS56128928A/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
    • G03B2215/0514—Separate unit
    • G03B2215/0517—Housing
    • G03B2215/0521—Housing movable housing, e.g. bounce-light
    • 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
    • G03B2215/0517—Housing
    • G03B2215/0525—Reflector
    • G03B2215/0528—Reflector movable reflector, e.g. change of illumination angle or illumination direction

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Stroboscope Apparatuses (AREA)

Abstract

PURPOSE:To obtain a shade-free picture with proper exposure by controlling the 1st flash bulb and the 2nd flash bulb, which emits bounce light, with the output of a couple of photometric circuit when their quantities of photodetection reach a freely settable level and the best photographic level. CONSTITUTION:The moment the synchronizing switch is closed in response to shutter release, flash bulb 25 of the 1st light emitting part 18 emits light through the 1st trigger capacitor 22. Then, reflected light from an object is photodetected by photometric circuit and when the integral value of capacitor 8 reaches the quantity of photodetection freely set through variable resistance 13, and 1st comparator 12 generates a comparison output. Consequently, thyristor 15 and the 2nd trigger capacitor 31 are controlled and the moment the light emission of discharge bulb 25 stops, bounce light emitting flash bulb 33 of the 2nd light emitting part 19 starts emitting light. When the successive addition photometric value of the same photometric circuit reaches an adequate exposure value, the light emission is stopped entirely through thyristor 16. Thus, photography meeting photographic requirements is carried out by direct light and bouncing light in desired proportional with proper exposure and direct exposure.
JP3155080A 1979-10-26 1980-03-14 Flash emitter with double lamp Pending JPS56128928A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP3155080A JPS56128928A (en) 1980-03-14 1980-03-14 Flash emitter with double lamp
GB8032364A GB2061535B (en) 1979-10-26 1980-10-08 Flashunit having plural flashlamps
CA000362077A CA1192941A (en) 1979-10-26 1980-10-09 Flash unit with two flash lights
US06/197,473 US4360764A (en) 1979-10-26 1980-10-16 Flash unit having plural flashlamps
DE3039858A DE3039858C2 (en) 1979-10-26 1980-10-22 Electronic flash unit
FR8022675A FR2469083B1 (en) 1979-10-26 1980-10-23 LIGHTING GENERATION UNIT WITH MULTIPLE DISCHARGE TUBES FOR PHOTOGRAPHY

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3155080A JPS56128928A (en) 1980-03-14 1980-03-14 Flash emitter with double lamp

Publications (1)

Publication Number Publication Date
JPS56128928A true JPS56128928A (en) 1981-10-08

Family

ID=12334290

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3155080A Pending JPS56128928A (en) 1979-10-26 1980-03-14 Flash emitter with double lamp

Country Status (1)

Country Link
JP (1) JPS56128928A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56168643A (en) * 1980-05-30 1981-12-24 Minolta Camera Co Ltd Adapter for multilamp automatic dimming type flash device
JPS58149032A (en) * 1982-02-27 1983-09-05 Canon Inc Flash photographing device
JPS60249125A (en) * 1984-05-25 1985-12-09 West Electric Co Ltd Bounce photographing device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51123147A (en) * 1975-04-18 1976-10-27 Matsushita Electric Ind Co Ltd Automatic light adjustable strobo device
JPS5456427A (en) * 1977-10-13 1979-05-07 Toshiba Shiyashin Youhin Kk Electronic flashing device
JPS5694339A (en) * 1979-12-10 1981-07-30 Eastman Kodak Co Electronic flashhsystem controllcircuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51123147A (en) * 1975-04-18 1976-10-27 Matsushita Electric Ind Co Ltd Automatic light adjustable strobo device
JPS5456427A (en) * 1977-10-13 1979-05-07 Toshiba Shiyashin Youhin Kk Electronic flashing device
JPS5694339A (en) * 1979-12-10 1981-07-30 Eastman Kodak Co Electronic flashhsystem controllcircuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56168643A (en) * 1980-05-30 1981-12-24 Minolta Camera Co Ltd Adapter for multilamp automatic dimming type flash device
JPS58149032A (en) * 1982-02-27 1983-09-05 Canon Inc Flash photographing device
JPS60249125A (en) * 1984-05-25 1985-12-09 West Electric Co Ltd Bounce photographing device
JPH0523414B2 (en) * 1984-05-25 1993-04-02 West Electric Co

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