JPS5466837A - Automatic exposure control system - Google Patents

Automatic exposure control system

Info

Publication number
JPS5466837A
JPS5466837A JP13398777A JP13398777A JPS5466837A JP S5466837 A JPS5466837 A JP S5466837A JP 13398777 A JP13398777 A JP 13398777A JP 13398777 A JP13398777 A JP 13398777A JP S5466837 A JPS5466837 A JP S5466837A
Authority
JP
Japan
Prior art keywords
circuit
diaphragm
blind
film sensitivity
information
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
JP13398777A
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 JP13398777A priority Critical patent/JPS5466837A/en
Publication of JPS5466837A publication Critical patent/JPS5466837A/en
Pending legal-status Critical Current

Links

Landscapes

  • Exposure Control For Cameras (AREA)

Abstract

PURPOSE: To perform a program control in a simple and low cost manner by utilizing an electronic shutter.
CONSTITUTION: After the light of object incident onto photodetector 3 of photometric circuit 2 via the diaphrogm 1 of lens has been converted to electric signal, it is counted in arithmetic circuit 4 together with the diaphragm information from diaphragm information set circuit 5 whose resistor is changed with interlocked with preset ring 7 of the lens and with the film sensitivity information from film sensitivity information set circuit 6 whose resistor is changed by the rotation of film sensitivity dial. After the thus counted shutter speed information has been memorized in memory circuit 8, shutter control circuit 9 is so controlled that the second blind is made to travel by demagnetizing the blind magnet 10 after the lapse of a predetermined time since the travel of the first blind. Accordingly, the program control i spossible by adding a device which sets the diaphragm to the programmed value in response to the light amount in the diaphragm priority camera.
COPYRIGHT: (C)1979,JPO&Japio
JP13398777A 1977-11-08 1977-11-08 Automatic exposure control system Pending JPS5466837A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13398777A JPS5466837A (en) 1977-11-08 1977-11-08 Automatic exposure control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13398777A JPS5466837A (en) 1977-11-08 1977-11-08 Automatic exposure control system

Publications (1)

Publication Number Publication Date
JPS5466837A true JPS5466837A (en) 1979-05-29

Family

ID=15117724

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13398777A Pending JPS5466837A (en) 1977-11-08 1977-11-08 Automatic exposure control system

Country Status (1)

Country Link
JP (1) JPS5466837A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6064328A (en) * 1983-09-20 1985-04-12 Nippon Kogaku Kk <Nikon> Exposure controller of camera

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5028831A (en) * 1973-07-16 1975-03-24
JPS5029035A (en) * 1973-07-17 1975-03-24
JPS516537A (en) * 1974-07-05 1976-01-20 Canon Kk ROSHUTSUSEIGYOHOHO

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5028831A (en) * 1973-07-16 1975-03-24
JPS5029035A (en) * 1973-07-17 1975-03-24
JPS516537A (en) * 1974-07-05 1976-01-20 Canon Kk ROSHUTSUSEIGYOHOHO

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6064328A (en) * 1983-09-20 1985-04-12 Nippon Kogaku Kk <Nikon> Exposure controller of camera

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