JPS50123424A - - Google Patents

Info

Publication number
JPS50123424A
JPS50123424A JP49030261A JP3026174A JPS50123424A JP S50123424 A JPS50123424 A JP S50123424A JP 49030261 A JP49030261 A JP 49030261A JP 3026174 A JP3026174 A JP 3026174A JP S50123424 A JPS50123424 A JP S50123424A
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.)
Pending
Application number
JP49030261A
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 JP49030261A priority Critical patent/JPS50123424A/ja
Priority to GB10587/75A priority patent/GB1494779A/en
Priority to US05/557,987 priority patent/US3953867A/en
Priority to DE2511362A priority patent/DE2511362C3/de
Publication of JPS50123424A publication Critical patent/JPS50123424A/ja
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
    • G03B7/081—Analogue circuits
    • G03B7/083—Analogue circuits for control of exposure time

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Shutters For Cameras (AREA)
  • Shutter-Related Mechanisms (AREA)
  • Cameras In General (AREA)
  • Exposure Control For Cameras (AREA)
JP49030261A 1974-03-16 1974-03-16 Pending JPS50123424A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP49030261A JPS50123424A (ja) 1974-03-16 1974-03-16
GB10587/75A GB1494779A (en) 1974-03-16 1975-03-13 Electromagnetic operating circuit for cameras
US05/557,987 US3953867A (en) 1974-03-16 1975-03-13 Electromagnetic operating circuit for cameras
DE2511362A DE2511362C3 (de) 1974-03-16 1975-03-14 Elektromagnetische Betätigungsschaltung für eine Kamera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP49030261A JPS50123424A (ja) 1974-03-16 1974-03-16

Publications (1)

Publication Number Publication Date
JPS50123424A true JPS50123424A (ja) 1975-09-27

Family

ID=12298749

Family Applications (1)

Application Number Title Priority Date Filing Date
JP49030261A Pending JPS50123424A (ja) 1974-03-16 1974-03-16

Country Status (4)

Country Link
US (1) US3953867A (ja)
JP (1) JPS50123424A (ja)
DE (1) DE2511362C3 (ja)
GB (1) GB1494779A (ja)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4143958A (en) * 1976-10-08 1979-03-13 Copal Company Limited Controlling circuit for electric shutters
US4129370A (en) * 1976-10-08 1978-12-12 Copal Company Limited Controlling circuit for electric shutters
JPS5414227A (en) * 1977-07-05 1979-02-02 Canon Inc Drive circuit of electromagnetic for camera
JPS54111821A (en) * 1978-02-21 1979-09-01 Minolta Camera Co Ltd Flash photographic device
DE2911523C2 (de) * 1979-03-23 1981-07-30 Agfa-Gevaert Ag, 5090 Leverkusen Fotografisches Kopiergerät mit einer fotoelektrisch gesteuerten Einrichtung zur automatischen Regelung der Kopierlichtmenge
JPS55144217A (en) * 1979-04-28 1980-11-11 Canon Inc Electromagnetically driven slit exposure shutter
JPS561927A (en) * 1979-06-20 1981-01-10 Canon Inc Driving circuit of electromagnetically driven shutter
US4464032A (en) * 1981-08-26 1984-08-07 Canon Kabushiki Kaisha Exposure time control device
US4607312A (en) * 1982-08-24 1986-08-19 Barreto Mercado William Radio control security system for automobile doors, trunk and hood locks and engine power
JPS6064333A (ja) * 1983-09-20 1985-04-12 Nippon Kogaku Kk <Nikon> カメラの自動絞り制御回路
US4649458A (en) * 1984-03-09 1987-03-10 Ogura Clutch Control circuits for electromagnetic coupling apparatus
GB2265266A (en) * 1992-03-18 1993-09-22 Yang Tai Her Circuit for protecting a battery against surge current output
JP3907260B2 (ja) * 1997-03-11 2007-04-18 キヤノン株式会社 カメラ

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4844326B1 (ja) * 1970-10-23 1973-12-24

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3063354A (en) * 1959-05-23 1962-11-13 Meopta Narodni Podnik Device for automatically controlling the exposure time for photographic purposes
DE1265573B (de) * 1965-11-24 1968-04-04 Compur Werk Gmbh & Co Photographischer Verschluss mit Antriebsmagneten
DE1278822B (de) * 1966-04-01 1968-09-26 Agfa Gevaert Ag Blendenverschluss mit einer ortsfesten Magnetspule
CH463949A (de) * 1967-06-19 1968-10-15 Robot Foto Electr Kg Auslösevorrichtung für Kameras mit selbsttätigem Filmtransport
US3687027A (en) * 1969-10-31 1972-08-29 Copal Co Ltd Exposure control circuitry for use in photographic camera
US3742827A (en) * 1970-03-17 1973-07-03 Eastman Kodak Co Shutter control apparatus for photographic cameras
US3791278A (en) * 1971-07-19 1974-02-12 Polaroid Corp Photographic apparatus with solenoid powered instrumentalities

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4844326B1 (ja) * 1970-10-23 1973-12-24

Also Published As

Publication number Publication date
DE2511362C3 (de) 1981-01-29
DE2511362B2 (de) 1980-05-22
GB1494779A (en) 1977-12-14
US3953867A (en) 1976-04-27
DE2511362A1 (de) 1975-09-25

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