JPS56159622A - Flash controller for camera - Google Patents

Flash controller for camera

Info

Publication number
JPS56159622A
JPS56159622A JP6440480A JP6440480A JPS56159622A JP S56159622 A JPS56159622 A JP S56159622A JP 6440480 A JP6440480 A JP 6440480A JP 6440480 A JP6440480 A JP 6440480A JP S56159622 A JPS56159622 A JP S56159622A
Authority
JP
Japan
Prior art keywords
lighting
camera
lighting time
start signal
flash
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
JP6440480A
Other languages
Japanese (ja)
Inventor
Giichi Ando
Shoji Anzai
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.)
BRONICA CO Ltd
BURONIKA KK
Original Assignee
BRONICA CO Ltd
BURONIKA 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 BRONICA CO Ltd, BURONIKA KK filed Critical BRONICA CO Ltd
Priority to JP6440480A priority Critical patent/JPS56159622A/en
Publication of JPS56159622A publication Critical patent/JPS56159622A/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
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/16—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly in accordance with both the intensity of the flash source and the distance of the flash source from the object, e.g. in accordance with the "guide number" of the flash bulb and the focusing of the camera

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Stroboscope Apparatuses (AREA)
  • Exposure Control For Cameras (AREA)

Abstract

PURPOSE:To obtain lighting time suitable to photographic conditions by calculating the adequate lighting time and by outputting a flash controlling signal according to a lighting start signal. CONSTITUTION:An arithmetic part 2 incorporated in a camera calculates proper lighting time on the basis of pieces of information on the photographic speed of a film, the diaphragm value of a lens, the guide number of a flash device, and the distance to an object. As a lighting start signal synchronizing with the exposure start signal of the camera is supplied to a flash controlling part 3, a flash controlling signal is outputted for the calculated proper lighting time for lighting.
JP6440480A 1980-05-15 1980-05-15 Flash controller for camera Pending JPS56159622A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6440480A JPS56159622A (en) 1980-05-15 1980-05-15 Flash controller for camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6440480A JPS56159622A (en) 1980-05-15 1980-05-15 Flash controller for camera

Publications (1)

Publication Number Publication Date
JPS56159622A true JPS56159622A (en) 1981-12-09

Family

ID=13257334

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6440480A Pending JPS56159622A (en) 1980-05-15 1980-05-15 Flash controller for camera

Country Status (1)

Country Link
JP (1) JPS56159622A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6189834U (en) * 1984-11-19 1986-06-11
JPS61174521A (en) * 1985-01-30 1986-08-06 Olympus Optical Co Ltd Flashmatic device of camera
US4690792A (en) * 1985-05-10 1987-09-01 Mitsubishi Monsanto Chemical Company Biaxially drawn laminated films prepared by sequential stretching
JPH02197830A (en) * 1989-01-26 1990-08-06 Canon Inc Stroboscopic device
EP0448363A2 (en) * 1990-03-19 1991-09-25 Nikon Corporation Flash controller for a camera
US5148212A (en) * 1990-01-23 1992-09-15 Ricoh Company, Ltd. Flash control based on calculated required flash energy

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6189834U (en) * 1984-11-19 1986-06-11
JPS61174521A (en) * 1985-01-30 1986-08-06 Olympus Optical Co Ltd Flashmatic device of camera
US4690792A (en) * 1985-05-10 1987-09-01 Mitsubishi Monsanto Chemical Company Biaxially drawn laminated films prepared by sequential stretching
JPH02197830A (en) * 1989-01-26 1990-08-06 Canon Inc Stroboscopic device
US5148212A (en) * 1990-01-23 1992-09-15 Ricoh Company, Ltd. Flash control based on calculated required flash energy
EP0448363A2 (en) * 1990-03-19 1991-09-25 Nikon Corporation Flash controller for a camera
EP0675389A3 (en) * 1990-03-19 1995-10-25 Nikon Corporation Automatic light modulating camera
EP0675387A3 (en) * 1990-03-19 1995-10-25 Nikon Corporation Automatic light modulating camera

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