JPS5922214B2 - カメラのための誤動作防止回路 - Google Patents

カメラのための誤動作防止回路

Info

Publication number
JPS5922214B2
JPS5922214B2 JP53113047A JP11304778A JPS5922214B2 JP S5922214 B2 JPS5922214 B2 JP S5922214B2 JP 53113047 A JP53113047 A JP 53113047A JP 11304778 A JP11304778 A JP 11304778A JP S5922214 B2 JPS5922214 B2 JP S5922214B2
Authority
JP
Japan
Prior art keywords
circuit
switch
signal
shutter
state
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
JP53113047A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5540437A (en
Inventor
正憲 打土井
正春 川村
佳博 茂田
洋次 杉浦
博 山本
信夫 手塚
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP53113047A priority Critical patent/JPS5922214B2/ja
Priority to US06/070,800 priority patent/US4236802A/en
Priority to DE19792937092 priority patent/DE2937092A1/de
Publication of JPS5540437A publication Critical patent/JPS5540437A/ja
Publication of JPS5922214B2 publication Critical patent/JPS5922214B2/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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/18—Signals indicating condition of a camera member or suitability of light
    • G03B17/20—Signals indicating condition of a camera member or suitability of light visible in viewfinder
    • 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)
JP53113047A 1978-09-14 1978-09-14 カメラのための誤動作防止回路 Expired JPS5922214B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP53113047A JPS5922214B2 (ja) 1978-09-14 1978-09-14 カメラのための誤動作防止回路
US06/070,800 US4236802A (en) 1978-09-14 1979-08-29 Safety device for camera
DE19792937092 DE2937092A1 (de) 1978-09-14 1979-09-13 Sicherheitseinrichtung fuer eine kamera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53113047A JPS5922214B2 (ja) 1978-09-14 1978-09-14 カメラのための誤動作防止回路

Publications (2)

Publication Number Publication Date
JPS5540437A JPS5540437A (en) 1980-03-21
JPS5922214B2 true JPS5922214B2 (ja) 1984-05-25

Family

ID=14602135

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53113047A Expired JPS5922214B2 (ja) 1978-09-14 1978-09-14 カメラのための誤動作防止回路

Country Status (3)

Country Link
US (1) US4236802A (US08063081-20111122-C00044.png)
JP (1) JPS5922214B2 (US08063081-20111122-C00044.png)
DE (1) DE2937092A1 (US08063081-20111122-C00044.png)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56156820A (en) * 1980-05-09 1981-12-03 Nippon Kogaku Kk <Nikon> Shutter release lock device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1772237B1 (de) * 1968-04-18 1970-08-27 Compur Werk Gmbh & Co Photographische Kamera mit einer elektronischen Zeitbildungseinrichtung
US4001843A (en) * 1973-12-13 1977-01-04 Polaroid Corporation Photographic control system with evaluation control
US4015198A (en) * 1973-12-26 1977-03-29 Canon Kabushiki Kaisha Shutter-time-preference single lens reflex camera with automatic film wind-up
US4181417A (en) * 1977-03-16 1980-01-01 Canon Kabushiki Kaisha Shutter operation control device for a photographic camera

Also Published As

Publication number Publication date
DE2937092A1 (de) 1980-03-27
JPS5540437A (en) 1980-03-21
DE2937092C2 (US08063081-20111122-C00044.png) 1987-03-26
US4236802A (en) 1980-12-02

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