JPS4835351U - - Google Patents

Info

Publication number
JPS4835351U
JPS4835351U JP1971078861U JP7886171U JPS4835351U JP S4835351 U JPS4835351 U JP S4835351U JP 1971078861 U JP1971078861 U JP 1971078861U JP 7886171 U JP7886171 U JP 7886171U JP S4835351 U JPS4835351 U JP S4835351U
Authority
JP
Japan
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
JP1971078861U
Other versions
JPS5112107Y2 (ja
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 filed Critical
Priority to JP1971078861U priority Critical patent/JPS5112107Y2/ja
Priority to US00282718A priority patent/US3772974A/en
Priority to GB3904672A priority patent/GB1404199A/en
Priority to DE2242904A priority patent/DE2242904C3/de
Publication of JPS4835351U publication Critical patent/JPS4835351U/ja
Application granted granted Critical
Publication of JPS5112107Y2 publication Critical patent/JPS5112107Y2/ja
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
    • G03B7/085—Analogue circuits for control of aperture

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)
  • Diaphragms For Cameras (AREA)
  • Control Of Direct Current Motors (AREA)
JP1971078861U 1971-09-02 1971-09-02 Expired JPS5112107Y2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1971078861U JPS5112107Y2 (ja) 1971-09-02 1971-09-02
US00282718A US3772974A (en) 1971-09-02 1972-08-22 Single-lens reflex camera with an automatic aperture control device
GB3904672A GB1404199A (en) 1971-09-02 1972-08-22 Single-lens reflex camera with an automatic aperture control device
DE2242904A DE2242904C3 (de) 1971-09-02 1972-08-31 Einäugige Spiegelreflexkamera mit automatischer Blendensteuerung und Innenmessung sowie mit Synchronkontakten für Blitzlichtfotografie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1971078861U JPS5112107Y2 (ja) 1971-09-02 1971-09-02

Publications (2)

Publication Number Publication Date
JPS4835351U true JPS4835351U (ja) 1973-04-27
JPS5112107Y2 JPS5112107Y2 (ja) 1976-04-01

Family

ID=13673595

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1971078861U Expired JPS5112107Y2 (ja) 1971-09-02 1971-09-02

Country Status (4)

Country Link
US (1) US3772974A (ja)
JP (1) JPS5112107Y2 (ja)
DE (1) DE2242904C3 (ja)
GB (1) GB1404199A (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2223720B1 (ja) * 1973-03-30 1977-10-21 Canon Kk
JPS563564B2 (ja) * 1973-09-06 1981-01-26
US4010480A (en) * 1974-08-19 1977-03-01 Yugenkaisha Sato Kenkyusho Control circuit for automatically controlling a diaphragm of a camera
US3950766A (en) * 1974-11-22 1976-04-13 Polaroid Corporation Exposure control system employing blade sensing follow focus arrangement
DE2609618A1 (de) * 1976-03-09 1977-09-22 Bosch Gmbh Robert Kamera mit einem fotoelektrisch gesteuerten blendenregler
JPS59229531A (ja) * 1983-06-13 1984-12-24 Canon Inc カメラの電動絞り装置
EP1571488A2 (en) * 2001-06-12 2005-09-07 Fuji Photo Film Co., Ltd. Camera and shutter device
CN114488652A (zh) * 2020-11-12 2022-05-13 信泰光学(深圳)有限公司 光圈组件

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4935695B1 (ja) * 1965-10-07 1974-09-25
US3476028A (en) * 1966-03-08 1969-11-04 Minolta Camera Kk Monocular narrow angle exposure meter
US3430053A (en) * 1967-08-24 1969-02-25 Lawrence A Westhaver Method for aperture control in which the loop gain is caused to vanish when the absolute value of the error is less than a given value and is caused to assume its nominal value when the absolute value of the error is greater than a second given value
DE1797443A1 (de) * 1968-09-28 1970-12-23 Zeiss Ikon Ag Fotografische Kamera mit Blendenregelautomatik
US3611894A (en) * 1969-04-22 1971-10-12 Bell & Howell Co Automatic exposure control system

Also Published As

Publication number Publication date
US3772974A (en) 1973-11-20
DE2242904B2 (de) 1974-10-31
JPS5112107Y2 (ja) 1976-04-01
DE2242904C3 (de) 1975-06-19
DE2242904A1 (de) 1973-03-08
GB1404199A (en) 1975-08-28

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