FR2416495A1 - Appareil de prise de vues a commande automatique du temps d'exposition en fonction de l'objet photographie - Google Patents

Appareil de prise de vues a commande automatique du temps d'exposition en fonction de l'objet photographie

Info

Publication number
FR2416495A1
FR2416495A1 FR797902596A FR7902596A FR2416495A1 FR 2416495 A1 FR2416495 A1 FR 2416495A1 FR 797902596 A FR797902596 A FR 797902596A FR 7902596 A FR7902596 A FR 7902596A FR 2416495 A1 FR2416495 A1 FR 2416495A1
Authority
FR
France
Prior art keywords
sensitivity
automatic exposure
light receiving
receiving element
exposure time
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
FR797902596A
Other languages
English (en)
French (fr)
Other versions
FR2416495B1 (en, 2012
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.)
Olympus Corp
Original Assignee
Olympus 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
Priority claimed from JP1087978A external-priority patent/JPS54104338A/ja
Priority claimed from JP1978013620U external-priority patent/JPS54117236U/ja
Application filed by Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Publication of FR2416495A1 publication Critical patent/FR2416495A1/fr
Application granted granted Critical
Publication of FR2416495B1 publication Critical patent/FR2416495B1/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)
  • Diaphragms For Cameras (AREA)
FR797902596A 1978-02-02 1979-02-01 Appareil de prise de vues a commande automatique du temps d'exposition en fonction de l'objet photographie Granted FR2416495A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1087978A JPS54104338A (en) 1978-02-02 1978-02-02 Camera
JP1978013620U JPS54117236U (en, 2012) 1978-02-06 1978-02-06

Publications (2)

Publication Number Publication Date
FR2416495A1 true FR2416495A1 (fr) 1979-08-31
FR2416495B1 FR2416495B1 (en, 2012) 1984-06-08

Family

ID=26346234

Family Applications (1)

Application Number Title Priority Date Filing Date
FR797902596A Granted FR2416495A1 (fr) 1978-02-02 1979-02-01 Appareil de prise de vues a commande automatique du temps d'exposition en fonction de l'objet photographie

Country Status (4)

Country Link
US (1) US4363543A (en, 2012)
DE (1) DE2904024C2 (en, 2012)
FR (1) FR2416495A1 (en, 2012)
GB (1) GB2016721B (en, 2012)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2465240A1 (fr) * 1979-09-17 1981-03-20 Nippon Kogaku Kk Bonnette et appareil de prise de vues l'utilisant

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100319523B1 (ko) * 1999-06-17 2002-01-05 이형도 카메라의 감도 조절장치

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB502620A (en) * 1936-09-23 1939-03-22 Odoen Riszdorfer Improvements in and relating to photographic cameras
US3286609A (en) * 1964-03-03 1966-11-22 Minolta Camera Kk Light receiving device for electrical exposure meter for cameras
US3527149A (en) * 1967-05-29 1970-09-08 Prontor Werk Gauthier Gmbh Photographic camera with an electronic timing device controllable by light conditions

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3690232A (en) * 1970-03-27 1972-09-12 Yashica Co Ltd Photographic cameras
US3886568A (en) * 1971-07-23 1975-05-27 Canon Kk Photographic camera with automatic exposure control means
JPS4980244U (en, 2012) * 1972-10-26 1974-07-11
DE2333020A1 (de) * 1973-06-28 1975-01-23 Agfa Gevaert Ag Fotografisches aufnahmegeraet
DE2553843B2 (de) * 1975-11-29 1978-09-07 Balda-Werke Photographische Geraete Und Kunststoff Gmbh & Co Kg, 4980 Buende Kamera mit elektronischem Blitzgerat
JPS52131034U (en, 2012) * 1976-03-31 1977-10-05

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB502620A (en) * 1936-09-23 1939-03-22 Odoen Riszdorfer Improvements in and relating to photographic cameras
US3286609A (en) * 1964-03-03 1966-11-22 Minolta Camera Kk Light receiving device for electrical exposure meter for cameras
US3527149A (en) * 1967-05-29 1970-09-08 Prontor Werk Gauthier Gmbh Photographic camera with an electronic timing device controllable by light conditions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2465240A1 (fr) * 1979-09-17 1981-03-20 Nippon Kogaku Kk Bonnette et appareil de prise de vues l'utilisant

Also Published As

Publication number Publication date
GB2016721A (en) 1979-09-26
FR2416495B1 (en, 2012) 1984-06-08
US4363543A (en) 1982-12-14
GB2016721B (en) 1982-06-09
DE2904024A1 (de) 1979-09-20
DE2904024C2 (de) 1982-05-13

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Legal Events

Date Code Title Description
ST Notification of lapse