FR2331808A1 - Posemetre et application notamment aux appareils de prise de vues - Google Patents

Posemetre et application notamment aux appareils de prise de vues

Info

Publication number
FR2331808A1
FR2331808A1 FR7633882A FR7633882A FR2331808A1 FR 2331808 A1 FR2331808 A1 FR 2331808A1 FR 7633882 A FR7633882 A FR 7633882A FR 7633882 A FR7633882 A FR 7633882A FR 2331808 A1 FR2331808 A1 FR 2331808A1
Authority
FR
France
Prior art keywords
posemeter
application especially
photography devices
photography
devices
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.)
Granted
Application number
FR7633882A
Other languages
English (en)
Other versions
FR2331808B1 (fr
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 FR2331808A1 publication Critical patent/FR2331808A1/fr
Application granted granted Critical
Publication of FR2331808B1 publication Critical patent/FR2331808B1/fr
Granted 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)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Shutter-Related Mechanisms (AREA)
FR7633882A 1975-11-12 1976-11-10 Posemetre et application notamment aux appareils de prise de vues Granted FR2331808A1 (fr)

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 (2)

Publication Number Publication Date
FR2331808A1 true FR2331808A1 (fr) 1977-06-10
FR2331808B1 FR2331808B1 (fr) 1978-10-20

Family

ID=24530499

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7633882A Granted FR2331808A1 (fr) 1975-11-12 1976-11-10 Posemetre et application notamment aux appareils de prise de vues

Country Status (7)

Country Link
US (1) US4037237A (fr)
JP (1) JPS5260620A (fr)
CA (1) CA1061152A (fr)
DE (1) DE2651540C3 (fr)
FR (1) FR2331808A1 (fr)
GB (1) GB1543829A (fr)
HK (1) HK61579A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53163134U (fr) * 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 (fr) * 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 (fr) * 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
DE2651540B2 (de) 1978-07-20
DE2651540A1 (de) 1977-05-18
DE2651540C3 (de) 1979-03-08
CA1061152A (fr) 1979-08-28
FR2331808B1 (fr) 1978-10-20
JPS5260620A (en) 1977-05-19
GB1543829A (en) 1979-04-11
HK61579A (en) 1979-09-07
JPS5340893B2 (fr) 1978-10-30

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Legal Events

Date Code Title Description
ST Notification of lapse