JPS5642216A - Program exposure control unit by open photometry suited for lens interchangeable camera - Google Patents

Program exposure control unit by open photometry suited for lens interchangeable camera

Info

Publication number
JPS5642216A
JPS5642216A JP11814279A JP11814279A JPS5642216A JP S5642216 A JPS5642216 A JP S5642216A JP 11814279 A JP11814279 A JP 11814279A JP 11814279 A JP11814279 A JP 11814279A JP S5642216 A JPS5642216 A JP S5642216A
Authority
JP
Japan
Prior art keywords
value
aperture
full
exposure
determined
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
JP11814279A
Other languages
English (en)
Inventor
Yasuo Ishiguro
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.)
Nidec Copal Corp
Original Assignee
Nidec Copal Corp
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 Nidec Copal Corp filed Critical Nidec Copal Corp
Priority to JP11814279A priority Critical patent/JPS5642216A/ja
Priority to DE3034392A priority patent/DE3034392C2/de
Publication of JPS5642216A publication Critical patent/JPS5642216A/ja
Priority to US06/348,744 priority patent/US4478500A/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
    • G03B7/08—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
    • G03B7/097—Digital circuits for control of both exposure time and aperture
    • 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
    • G03B7/087—Analogue circuits for control of both exposure time and aperture
    • 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
    • G03B7/089—Analogue circuits for storage of exposure value in mirror reflex cameras
    • 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
    • G03B7/20—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly in accordance with change of lens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)
JP11814279A 1979-09-14 1979-09-14 Program exposure control unit by open photometry suited for lens interchangeable camera Pending JPS5642216A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP11814279A JPS5642216A (en) 1979-09-14 1979-09-14 Program exposure control unit by open photometry suited for lens interchangeable camera
DE3034392A DE3034392C2 (de) 1979-09-14 1980-09-12 Einrichtung zur programmierten Belichtungssteuerung für Kameras mit Wechseloptik
US06/348,744 US4478500A (en) 1979-09-14 1982-02-16 Exposure controlling device adapted to cameras using interchangeable lenses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11814279A JPS5642216A (en) 1979-09-14 1979-09-14 Program exposure control unit by open photometry suited for lens interchangeable camera

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP9300280A Division JPS5642220A (en) 1980-07-08 1980-07-08 Releasing and diaphragm control unit of camera

Publications (1)

Publication Number Publication Date
JPS5642216A true JPS5642216A (en) 1981-04-20

Family

ID=14729102

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11814279A Pending JPS5642216A (en) 1979-09-14 1979-09-14 Program exposure control unit by open photometry suited for lens interchangeable camera

Country Status (3)

Country Link
US (1) US4478500A (ja)
JP (1) JPS5642216A (ja)
DE (1) DE3034392C2 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4561120A (en) * 1983-03-04 1985-12-24 Tokyo Shibaura Denki Kabushiki Kaisha Protective relaying system
JPS62255923A (ja) * 1986-04-30 1987-11-07 Canon Inc 撮像装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4724455A (en) * 1985-01-11 1988-02-09 Konishiroku Photo Industry Co., Ltd. Exposure controlling means for a variable focus type camera
US4794418A (en) * 1986-12-12 1988-12-27 Asahi Kogaku Kogyo Kabushiki Kaisha Programmed shutter and apparatus for preventing foreign matter on lens from being photographed in a lens shutter type of camera

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3603799A (en) * 1968-04-01 1971-09-07 Asahi Optical Co Ltd Light measuring device comprising a plurality of binary circuits for providing a digital representation of photocell output
DE2240920C3 (de) * 1972-08-19 1980-01-03 Rollei-Werke Franke & Heidecke, 3300 Braunschweig Fotografische Kamera mit einer Programmsteuereinrichtung
JPS5312608Y2 (ja) * 1972-08-31 1978-04-05
US4054887A (en) * 1973-04-16 1977-10-18 Ernest Leitz Gmbh Exposure control device for photographic cameras
JPS618414B2 (ja) * 1973-07-17 1986-03-14 Minolta Camera Kk
US3950765A (en) * 1973-07-17 1976-04-13 Minolta Camera Kabushiki Kaisha Exposure control devices for photographic cameras
GB1517723A (en) * 1974-07-17 1978-07-12 Asahi Optical Co Ltd Camera exposure control systems
JPS51138144U (ja) * 1975-04-30 1976-11-08
DE2620829C3 (de) * 1976-05-11 1982-03-18 Vetter, Werner, 7580 Bühl Zeit-Blenden-Steuerung an photographischen Kameras
GB1604324A (en) * 1977-05-20 1981-12-09 Nippon Kogaku Kk Exposure indicating device
DD134400A1 (de) * 1977-11-14 1979-02-21 Siegfried Schuetze Einrichtung zur eingabe fotografischer informationen
JPS5478124A (en) * 1977-12-03 1979-06-22 Nippon Chemical Ind Automatic exposure control camera display unit
JPS5478127A (en) * 1977-12-27 1979-06-22 Nippon Chemical Ind Camera program exposure controller
JPS5489730A (en) * 1977-12-27 1979-07-17 Minolta Camera Co Ltd Lens convertible camera of ttl photo-metric system with program shutter
DE2801383A1 (de) * 1978-01-13 1979-07-19 Agfa Gevaert Ag Fotografische kamera mit einer fokussiervorrichtung
US4307948A (en) * 1979-06-13 1981-12-29 Nippon Kogaku K.K. Diaphragm control apparatus for camera
US4324467A (en) * 1979-12-18 1982-04-13 Konishiroku Photo Industry Co., Ltd. Programed exposure control device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4561120A (en) * 1983-03-04 1985-12-24 Tokyo Shibaura Denki Kabushiki Kaisha Protective relaying system
JPS62255923A (ja) * 1986-04-30 1987-11-07 Canon Inc 撮像装置

Also Published As

Publication number Publication date
DE3034392C2 (de) 1986-03-27
US4478500A (en) 1984-10-23
DE3034392A1 (de) 1981-03-19

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