JPS51117627A - Single lens reflex camera automatic exposure control unit - Google Patents

Single lens reflex camera automatic exposure control unit

Info

Publication number
JPS51117627A
JPS51117627A JP50042968A JP4296875A JPS51117627A JP S51117627 A JPS51117627 A JP S51117627A JP 50042968 A JP50042968 A JP 50042968A JP 4296875 A JP4296875 A JP 4296875A JP S51117627 A JPS51117627 A JP S51117627A
Authority
JP
Japan
Prior art keywords
exposure control
control unit
single lens
automatic exposure
lens reflex
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
JP50042968A
Other languages
English (en)
Inventor
Saburo Numata
Shinichiro Fujino
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 JP50042968A priority Critical patent/JPS51117627A/ja
Publication of JPS51117627A publication Critical patent/JPS51117627A/ja
Priority to US06/061,855 priority patent/US4342505A/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)
JP50042968A 1975-04-09 1975-04-09 Single lens reflex camera automatic exposure control unit Pending JPS51117627A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP50042968A JPS51117627A (en) 1975-04-09 1975-04-09 Single lens reflex camera automatic exposure control unit
US06/061,855 US4342505A (en) 1975-04-09 1979-07-30 Automatic exposure control device for a single lens reflex camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50042968A JPS51117627A (en) 1975-04-09 1975-04-09 Single lens reflex camera automatic exposure control unit

Publications (1)

Publication Number Publication Date
JPS51117627A true JPS51117627A (en) 1976-10-15

Family

ID=12650825

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50042968A Pending JPS51117627A (en) 1975-04-09 1975-04-09 Single lens reflex camera automatic exposure control unit

Country Status (2)

Country Link
US (1) US4342505A (ja)
JP (1) JPS51117627A (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4734731A (en) * 1987-02-05 1988-03-29 W. Haking Enterprises Limited Filmspeed-corrected digital exposure control system for electronic cameras

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3742826A (en) * 1970-01-07 1973-07-03 Canon Kk Exposure control device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4047189A (en) * 1973-02-05 1977-09-06 Ernst Leitz Gmbh Electronic storage, indicator and exposure time control device for photographic cameras
DE2462472C2 (de) * 1973-03-07 1983-01-13 Canon K.K., Tokyo Belichtungssteuerschaltung in einer Kamera
JPS5067650A (ja) * 1973-10-17 1975-06-06
JPS60605B2 (ja) * 1975-04-23 1985-01-09 キヤノン株式会社 カメラのデジタル制御装置
JPS543527A (en) * 1977-06-10 1979-01-11 Copal Co Ltd Control circuit for digital shutter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3742826A (en) * 1970-01-07 1973-07-03 Canon Kk Exposure control device

Also Published As

Publication number Publication date
US4342505A (en) 1982-08-03

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