JPS51131321A - Exposure control device - Google Patents

Exposure control device

Info

Publication number
JPS51131321A
JPS51131321A JP5566975A JP5566975A JPS51131321A JP S51131321 A JPS51131321 A JP S51131321A JP 5566975 A JP5566975 A JP 5566975A JP 5566975 A JP5566975 A JP 5566975A JP S51131321 A JPS51131321 A JP S51131321A
Authority
JP
Japan
Prior art keywords
control device
exposure control
giving
camera
shutter
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
JP5566975A
Other languages
Japanese (ja)
Inventor
Saburo Numata
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.)
Fujinon Corp
Original Assignee
Fuji Photo 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 Fuji Photo Optical Co Ltd filed Critical Fuji Photo Optical Co Ltd
Priority to JP5566975A priority Critical patent/JPS51131321A/en
Priority to DE19762620341 priority patent/DE2620341C3/en
Publication of JPS51131321A publication Critical patent/JPS51131321A/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
    • G03B7/093—Digital circuits for control of exposure time

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)
  • Shutter-Related Mechanisms (AREA)

Abstract

PURPOSE: To obtain a reliable operation by giving a reset pulse to an arithmetic circuit due to a shutter opening signal in the digital exposure control device for the electric shutter of a camera.
COPYRIGHT: (C)1976,JPO&Japio
JP5566975A 1975-05-10 1975-05-10 Exposure control device Pending JPS51131321A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP5566975A JPS51131321A (en) 1975-05-10 1975-05-10 Exposure control device
DE19762620341 DE2620341C3 (en) 1975-05-10 1976-05-07 Exposure control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5566975A JPS51131321A (en) 1975-05-10 1975-05-10 Exposure control device

Publications (1)

Publication Number Publication Date
JPS51131321A true JPS51131321A (en) 1976-11-15

Family

ID=13005260

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5566975A Pending JPS51131321A (en) 1975-05-10 1975-05-10 Exposure control device

Country Status (2)

Country Link
JP (1) JPS51131321A (en)
DE (1) DE2620341C3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5421330A (en) * 1977-07-18 1979-02-17 Konishiroku Photo Ind Co Ltd Power source resetting method in cameras
GB2090668B (en) * 1980-11-04 1984-10-31 Asahi Optical Co Ltd Aperture value control device utilizing a frequency signal from a flash unit on a camera

Also Published As

Publication number Publication date
DE2620341A1 (en) 1976-11-18
DE2620341B2 (en) 1977-08-25
DE2620341C3 (en) 1978-04-20

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