GB1333298A - Electric shutter arrangement for a single lens reflex camera - Google Patents

Electric shutter arrangement for a single lens reflex camera

Info

Publication number
GB1333298A
GB1333298A GB234471A GB234471A GB1333298A GB 1333298 A GB1333298 A GB 1333298A GB 234471 A GB234471 A GB 234471A GB 234471 A GB234471 A GB 234471A GB 1333298 A GB1333298 A GB 1333298A
Authority
GB
United Kingdom
Prior art keywords
circuit
light
receiving element
light measuring
light receiving
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
GB234471A
Other languages
English (en)
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
Priority claimed from JP1970013174U external-priority patent/JPS5225146Y1/ja
Application filed by Canon Inc filed Critical Canon Inc
Publication of GB1333298A publication Critical patent/GB1333298A/en
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
    • 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)
  • Exposure Control For Cameras (AREA)
  • Shutters For Cameras (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
GB234471A 1970-01-16 1971-01-18 Electric shutter arrangement for a single lens reflex camera Expired GB1333298A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP470370 1970-01-16
JP1970013174U JPS5225146Y1 (enExample) 1970-02-10 1970-02-10

Publications (1)

Publication Number Publication Date
GB1333298A true GB1333298A (en) 1973-10-10

Family

ID=26338518

Family Applications (1)

Application Number Title Priority Date Filing Date
GB234471A Expired GB1333298A (en) 1970-01-16 1971-01-18 Electric shutter arrangement for a single lens reflex camera

Country Status (3)

Country Link
DE (1) DE2101616C3 (enExample)
FR (1) FR2077604B1 (enExample)
GB (1) GB1333298A (enExample)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1164794A (fr) * 1957-01-17 1958-10-14 Montage sélecteur à transistors, pour la commande de servo-mécanismes
US3324779A (en) * 1964-05-26 1967-06-13 Asahi Optical Co Ltd Photoelectric time control shutter circuit for photographic camera
GB1148059A (en) * 1965-07-21 1969-04-10 Honeywell Inc Improvements in or relating to automatic exposure control apparatus for cameras
FR1470699A (fr) * 1966-03-04 1967-02-24 Agfa Gevaert Ag Procédé pour réglage de la durée d'exposition dans les machines à copier

Also Published As

Publication number Publication date
FR2077604A1 (enExample) 1971-10-29
DE2101616B2 (de) 1973-11-22
DE2101616C3 (de) 1974-06-20
DE2101616A1 (de) 1972-07-20
FR2077604B1 (enExample) 1973-06-08

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years