JPS58137825A - カメラにおけるフラツシユ装置からの絞り情報検出装置 - Google Patents

カメラにおけるフラツシユ装置からの絞り情報検出装置

Info

Publication number
JPS58137825A
JPS58137825A JP57018830A JP1883082A JPS58137825A JP S58137825 A JPS58137825 A JP S58137825A JP 57018830 A JP57018830 A JP 57018830A JP 1883082 A JP1883082 A JP 1883082A JP S58137825 A JPS58137825 A JP S58137825A
Authority
JP
Japan
Prior art keywords
signal
aperture value
aperture
frequency clock
camera
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
JP57018830A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0245173B2 (enExample
Inventor
Kenzo Ishibashi
謙三 石橋
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo 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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority to JP57018830A priority Critical patent/JPS58137825A/ja
Priority to US06/460,080 priority patent/US4482237A/en
Priority to CA000420379A priority patent/CA1195723A/en
Priority to FR8301777A priority patent/FR2521313B1/fr
Priority to DE3304448A priority patent/DE3304448C2/de
Priority to GB08303667A priority patent/GB2115169B/en
Publication of JPS58137825A publication Critical patent/JPS58137825A/ja
Publication of JPH0245173B2 publication Critical patent/JPH0245173B2/ja
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
    • G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
    • G03B7/091—Digital circuits

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Stroboscope Apparatuses (AREA)
  • Exposure Control For Cameras (AREA)
JP57018830A 1982-02-10 1982-02-10 カメラにおけるフラツシユ装置からの絞り情報検出装置 Granted JPS58137825A (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP57018830A JPS58137825A (ja) 1982-02-10 1982-02-10 カメラにおけるフラツシユ装置からの絞り情報検出装置
US06/460,080 US4482237A (en) 1982-02-10 1983-01-20 Device for detecting stop value data from flash unit used with camera
CA000420379A CA1195723A (en) 1982-02-10 1983-01-27 Device for detecting stop value data from flash unit used with camera
FR8301777A FR2521313B1 (fr) 1982-02-10 1983-02-04 Dispositif de detection de donnee de valeur d'arret emise par une unite a eclair utilisee avec un appareil de prise de vues
DE3304448A DE3304448C2 (de) 1982-02-10 1983-02-09 Vorrichtung zur Übertragung von in einem Blitzgerät erzeugten Blendenwertdaten
GB08303667A GB2115169B (en) 1982-02-10 1983-02-10 Device for detecting stop value data from flash unit used with camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57018830A JPS58137825A (ja) 1982-02-10 1982-02-10 カメラにおけるフラツシユ装置からの絞り情報検出装置

Publications (2)

Publication Number Publication Date
JPS58137825A true JPS58137825A (ja) 1983-08-16
JPH0245173B2 JPH0245173B2 (enExample) 1990-10-08

Family

ID=11982476

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57018830A Granted JPS58137825A (ja) 1982-02-10 1982-02-10 カメラにおけるフラツシユ装置からの絞り情報検出装置

Country Status (6)

Country Link
US (1) US4482237A (enExample)
JP (1) JPS58137825A (enExample)
CA (1) CA1195723A (enExample)
DE (1) DE3304448C2 (enExample)
FR (1) FR2521313B1 (enExample)
GB (1) GB2115169B (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4573786A (en) * 1983-05-27 1986-03-04 Minolta Camera Kabushiki Kaisha Flash photographing system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007012203U1 (de) 2007-08-29 2007-11-08 Briese, Hans-Werner Friedrich Steuerschaltung zum synchronisierenden oder alternierenden Auslösen mindestens zweier Blitzeinrichtungen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2854082A1 (de) * 1978-12-14 1980-06-19 Rollei Werke Franke Heidecke Blitzgeraet und kamera
US4329624A (en) * 1979-03-17 1982-05-11 Kabushiki Kaisha Sunpak Computer type electronic photoflash
GB2090668B (en) * 1980-11-04 1984-10-31 Asahi Optical Co Ltd Aperture value control device utilizing a frequency signal from a flash unit on a camera
JPS57204029A (en) * 1981-06-09 1982-12-14 Asahi Optical Co Ltd Flash device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4573786A (en) * 1983-05-27 1986-03-04 Minolta Camera Kabushiki Kaisha Flash photographing system

Also Published As

Publication number Publication date
FR2521313B1 (fr) 1985-11-08
DE3304448C2 (de) 1987-02-26
GB8303667D0 (en) 1983-03-16
US4482237A (en) 1984-11-13
FR2521313A1 (fr) 1983-08-12
JPH0245173B2 (enExample) 1990-10-08
GB2115169B (en) 1985-10-16
GB2115169A (en) 1983-09-01
DE3304448A1 (de) 1983-10-27
CA1195723A (en) 1985-10-22

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