FR2490836B1 - Appareil de prise de vues photographiques a commande d'exposition automatique - Google Patents

Appareil de prise de vues photographiques a commande d'exposition automatique

Info

Publication number
FR2490836B1
FR2490836B1 FR8117810A FR8117810A FR2490836B1 FR 2490836 B1 FR2490836 B1 FR 2490836B1 FR 8117810 A FR8117810 A FR 8117810A FR 8117810 A FR8117810 A FR 8117810A FR 2490836 B1 FR2490836 B1 FR 2490836B1
Authority
FR
France
Prior art keywords
exposure control
automatic exposure
photographic camera
photographic
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.)
Expired
Application number
FR8117810A
Other languages
English (en)
Other versions
FR2490836A1 (fr
Inventor
Masafumi Yamasaki
Muneaki 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.)
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 FR2490836A1 publication Critical patent/FR2490836A1/fr
Application granted granted Critical
Publication of FR2490836B1 publication Critical patent/FR2490836B1/fr
Expired 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
    • G03B7/08—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
    • G03B7/081—Analogue circuits
    • G03B7/083—Analogue circuits for control of exposure time
    • 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
    • G03B7/093—Digital circuits for control of exposure time

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)
  • Indication In Cameras, And Counting Of Exposures (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
FR8117810A 1980-09-22 1981-09-21 Appareil de prise de vues photographiques a commande d'exposition automatique Expired FR2490836B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55132197A JPS5756828A (en) 1980-09-22 1980-09-22 Automatic exposure control camera

Publications (2)

Publication Number Publication Date
FR2490836A1 FR2490836A1 (fr) 1982-03-26
FR2490836B1 true FR2490836B1 (fr) 1986-05-09

Family

ID=15075659

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8117810A Expired FR2490836B1 (fr) 1980-09-22 1981-09-21 Appareil de prise de vues photographiques a commande d'exposition automatique

Country Status (5)

Country Link
US (1) US4432623A (fr)
JP (1) JPS5756828A (fr)
DE (1) DE3137725C2 (fr)
FR (1) FR2490836B1 (fr)
GB (1) GB2084340B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3321503A1 (de) * 1983-06-15 1984-12-20 Ernst Leitz Wetzlar Gmbh, 6330 Wetzlar Verfahren und schaltungsanordnungen zur verstaerkung eines eingangsstroms

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2060200A1 (de) * 1970-12-08 1972-06-15 Zeiss Ikon Ag Belichtungsmesseinrichtung fuer Spiegelreflexkameras
JPS5115736B1 (fr) * 1971-02-22 1976-05-19
JPS5327930B2 (fr) * 1972-04-20 1978-08-11
JPS4949628A (fr) * 1972-09-11 1974-05-14
JPS506331A (fr) * 1973-05-15 1975-01-23
JPS516548A (ja) * 1974-07-05 1976-01-20 Canon Kk Roshutsuseigyohoho
JPS6018927B2 (ja) * 1975-11-06 1985-05-13 旭光学工業株式会社 カメラのデイジタル表示回路
US4176929A (en) * 1977-06-21 1979-12-04 Canon Kabushiki Kaisha Exposure control device for a camera
JPS5443727A (en) * 1977-09-13 1979-04-06 Minolta Camera Co Ltd Exposure control device for camera
JPS5525024A (en) * 1978-08-09 1980-02-22 Minolta Camera Co Ltd Exposure control unit of single-lens reflex camera
JPS55138727A (en) * 1979-04-18 1980-10-29 Minolta Camera Co Ltd Exposure control circuit of camera
JPS56104323A (en) * 1980-01-23 1981-08-20 Minolta Camera Co Ltd Ttl photometric device of automatic exposure controlling single-lens reflex camera

Also Published As

Publication number Publication date
FR2490836A1 (fr) 1982-03-26
GB2084340B (en) 1984-06-27
DE3137725C2 (de) 1983-12-08
GB2084340A (en) 1982-04-07
US4432623A (en) 1984-02-21
JPS5756828A (en) 1982-04-05
DE3137725A1 (de) 1982-05-13

Similar Documents

Publication Publication Date Title
JPS52138127A (en) Automatic shutter for photographic camera
FR2495418B1 (fr) Dispositif de commande automatique d'exposition du type a division d'image pour camera de television
DE69106918D1 (de) Automatisches Belichtungssteuerungsgerät für eine Tageslicht-/Unterwasserkamera.
FR2474178B1 (fr) Systeme de commande d'exposition photographique et d'amorcage de flash
FR2526965B1 (fr) Dispositif de selection du mode de commande d'exposition pour appareil photographique
AT374011B (de) Photographische belichtungssteuervorrichtung fuer eine kamera mit einer der automatischen fokussierung dienenden entfernungsmesseinrichtung
JPS54103347A (en) Photographic camera having focus control device
GB2005836B (en) Photographic camera with automatic focusing
FR2424556B1 (fr) Camera cinematographique a mise au point automatique
JPS5499624A (en) Camera with electronic shutter having automatic focus detector
GB2013063B (en) Focussing system for a photographic or cinematographic camera
FR2287730A1 (fr) Appareil de commande automatique d'exposition pour un appareil photographique du type reflex a objectif unique
GB2005853B (en) Photographic camera with automatic exposure
FR2486254B1 (fr) Moyen de detection automatique de foyer et de commande d'exposition pour appareil photographique
FR2349845A1 (fr) Support et mecanisme de commande pour un objectif zoom
FR2292256A1 (fr) Dispositif de commande d'exposition pour un appareil de prise de vues photographiques
FR2490836B1 (fr) Appareil de prise de vues photographiques a commande d'exposition automatique
FR2454637B1 (fr) Dispositif de commande d'exposition utilisable avec un appareil photographique a commande de flash electronique
FR2521312B1 (fr) Dispositif de commande de photographie avec eclair d'appareil de prise de vues
DE3220015A1 (de) Automatische belichtungssteuereinrichtung fuer eine kamera
MY8500016A (en) Shutter for a photographic camera
GB2020046B (en) Photographic camera exposure control system
JPS52138128A (en) Automatic shutter for photographic camera
JPS5328423A (en) Previous shutter releasing unit for aperture control automatic exposure camera
JPS54127323A (en) Photographic camera having automatic exposure time controller

Legal Events

Date Code Title Description
ST Notification of lapse