GB1543829A - Exposure control apparatus - Google Patents

Exposure control apparatus

Info

Publication number
GB1543829A
GB1543829A GB47279/76A GB4727976A GB1543829A GB 1543829 A GB1543829 A GB 1543829A GB 47279/76 A GB47279/76 A GB 47279/76A GB 4727976 A GB4727976 A GB 4727976A GB 1543829 A GB1543829 A GB 1543829A
Authority
GB
United Kingdom
Prior art keywords
control apparatus
exposure control
exposure
control
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
GB47279/76A
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB1543829A publication Critical patent/GB1543829A/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)
  • Shutter-Related Mechanisms (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
GB47279/76A 1975-11-12 1976-11-12 Exposure control apparatus Expired GB1543829A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/631,272 US4037237A (en) 1975-11-12 1975-11-12 Exposure control apparatus

Publications (1)

Publication Number Publication Date
GB1543829A true GB1543829A (en) 1979-04-11

Family

ID=24530499

Family Applications (1)

Application Number Title Priority Date Filing Date
GB47279/76A Expired GB1543829A (en) 1975-11-12 1976-11-12 Exposure control apparatus

Country Status (7)

Country Link
US (1) US4037237A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS5260620A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1061152A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2651540C3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2331808A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1543829A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
HK (1) HK61579A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53163134U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1977-05-28 1978-12-20
JPS6010569B2 (ja) * 1977-10-08 1985-03-18 オリンパス光学工業株式会社 写真撮影装置の測光回路
JPS54161138U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1978-02-17 1979-11-10
US4264163A (en) * 1979-01-29 1981-04-28 Eastman Kodak Company Exposure control apparatus with compensation for film reciprocity failure

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3673415A (en) * 1969-11-08 1972-06-27 Yashica Co Ltd Shutter operating circuit having means to close shutter when light is insufficient
JPS5332701B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1973-05-11 1978-09-09
US3924263A (en) * 1973-10-24 1975-12-02 Eastman Kodak Co Shutter control circuit for a photographic camera
JPS598807B2 (ja) * 1973-12-13 1984-02-27 富士写真光機株式会社 一眼レフレツクスカメラ用記憶式電気シヤツタ−の露光時間自動調定装置
US3860936A (en) * 1974-01-28 1975-01-14 Eastman Kodak Co Shutter control circuit for controlling exposure time under low light conditions

Also Published As

Publication number Publication date
US4037237A (en) 1977-07-19
FR2331808B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1978-10-20
DE2651540B2 (de) 1978-07-20
DE2651540A1 (de) 1977-05-18
DE2651540C3 (de) 1979-03-08
FR2331808A1 (fr) 1977-06-10
HK61579A (en) 1979-09-07
JPS5340893B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1978-10-30
JPS5260620A (en) 1977-05-19
CA1061152A (en) 1979-08-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee