FR2463942A1 - Dispositif de commande de diaphragme pour appareil photographique - Google Patents

Dispositif de commande de diaphragme pour appareil photographique Download PDF

Info

Publication number
FR2463942A1
FR2463942A1 FR8017499A FR8017499A FR2463942A1 FR 2463942 A1 FR2463942 A1 FR 2463942A1 FR 8017499 A FR8017499 A FR 8017499A FR 8017499 A FR8017499 A FR 8017499A FR 2463942 A1 FR2463942 A1 FR 2463942A1
Authority
FR
France
Prior art keywords
circuit
diaphragm
signal
electronic flash
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.)
Granted
Application number
FR8017499A
Other languages
English (en)
French (fr)
Other versions
FR2463942B1 (enExample
Inventor
Kazunori Mizokami
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.)
Olympus Corp
Original Assignee
Olympus Optical 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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Publication of FR2463942A1 publication Critical patent/FR2463942A1/fr
Application granted granted Critical
Publication of FR2463942B1 publication Critical patent/FR2463942B1/fr
Granted 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
    • 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
    • G03B7/17—Selection of modes in flash units by exposure control arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Stroboscope Apparatuses (AREA)
  • Exposure Control For Cameras (AREA)
FR8017499A 1979-08-22 1980-08-07 Dispositif de commande de diaphragme pour appareil photographique Granted FR2463942A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10693279A JPS5632128A (en) 1979-08-22 1979-08-22 Aperture control circuit of strobe synchronized camera

Publications (2)

Publication Number Publication Date
FR2463942A1 true FR2463942A1 (fr) 1981-02-27
FR2463942B1 FR2463942B1 (enExample) 1983-07-22

Family

ID=14446166

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8017499A Granted FR2463942A1 (fr) 1979-08-22 1980-08-07 Dispositif de commande de diaphragme pour appareil photographique

Country Status (5)

Country Link
US (1) US4343544A (enExample)
JP (1) JPS5632128A (enExample)
DE (1) DE3031596C2 (enExample)
FR (1) FR2463942A1 (enExample)
GB (1) GB2057151B (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD157736A1 (de) * 1981-03-30 1982-12-01 Hans Jehmlich Belichtungssteuersystem

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2011619A1 (enExample) * 1968-06-25 1970-03-06 Eastman Kodak Co
DE2504566A1 (de) * 1974-02-04 1975-08-14 Canon Kk Reflexkamera
FR2340561A1 (fr) * 1976-02-04 1977-09-02 Canon Kk Dispositif de commande d'exposition pour la photographie au flash
FR2402223A1 (fr) * 1977-08-31 1979-03-30 Fuji Photo Optical Co Ltd Dispositif de commande automatique de lampe-eclair pour appareil photographique

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2560172C2 (enExample) * 1974-05-08 1990-09-20 Canon K.K., Tokio/Tokyo, Jp
US4127325A (en) * 1974-09-26 1978-11-28 Canon Kabushiki Kaisha Automatic exposure control camera
JPS5322411A (en) * 1976-08-13 1978-03-01 Minolta Camera Co Ltd Flash-matic change device for came ra
JPS5532893U (enExample) * 1978-08-25 1980-03-03

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2011619A1 (enExample) * 1968-06-25 1970-03-06 Eastman Kodak Co
DE2504566A1 (de) * 1974-02-04 1975-08-14 Canon Kk Reflexkamera
FR2340561A1 (fr) * 1976-02-04 1977-09-02 Canon Kk Dispositif de commande d'exposition pour la photographie au flash
FR2402223A1 (fr) * 1977-08-31 1979-03-30 Fuji Photo Optical Co Ltd Dispositif de commande automatique de lampe-eclair pour appareil photographique

Also Published As

Publication number Publication date
JPS5632128A (en) 1981-04-01
DE3031596A1 (de) 1981-03-19
US4343544A (en) 1982-08-10
DE3031596C2 (de) 1984-02-02
GB2057151B (en) 1983-04-07
FR2463942B1 (enExample) 1983-07-22
GB2057151A (en) 1981-03-25

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Legal Events

Date Code Title Description
ST Notification of lapse