FR2448164B1 - - Google Patents

Info

Publication number
FR2448164B1
FR2448164B1 FR8002208A FR8002208A FR2448164B1 FR 2448164 B1 FR2448164 B1 FR 2448164B1 FR 8002208 A FR8002208 A FR 8002208A FR 8002208 A FR8002208 A FR 8002208A FR 2448164 B1 FR2448164 B1 FR 2448164B1
Authority
FR
France
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
FR8002208A
Other versions
FR2448164A1 (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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo 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 JP1056779A external-priority patent/JPS55103542A/ja
Priority claimed from JP1056879A external-priority patent/JPS55103531A/ja
Priority claimed from JP1056679A external-priority patent/JPS55103530A/ja
Application filed by Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Publication of FR2448164A1 publication Critical patent/FR2448164A1/fr
Application granted granted Critical
Publication of FR2448164B1 publication Critical patent/FR2448164B1/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
    • 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
FR8002208A 1979-02-01 1980-02-01 Circuit de reglage de temps de pose pour appareil photographique Granted FR2448164A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP1056779A JPS55103542A (en) 1979-02-01 1979-02-01 Exposure time display circuit of camera
JP1056879A JPS55103531A (en) 1979-02-01 1979-02-01 Exposure time control circuit of camera
JP1056679A JPS55103530A (en) 1979-02-01 1979-02-01 Exposure time control circuit of camera

Publications (2)

Publication Number Publication Date
FR2448164A1 FR2448164A1 (fr) 1980-08-29
FR2448164B1 true FR2448164B1 (fr) 1984-01-13

Family

ID=27279012

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8002208A Granted FR2448164A1 (fr) 1979-02-01 1980-02-01 Circuit de reglage de temps de pose pour appareil photographique

Country Status (4)

Country Link
US (1) US4306785A (fr)
DE (1) DE3003745C2 (fr)
FR (1) FR2448164A1 (fr)
GB (2) GB2045957B (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5670533A (en) * 1979-11-13 1981-06-12 Asahi Optical Co Ltd Control circuit for exposure time of camera
JPS5730822A (en) * 1980-07-31 1982-02-19 Olympus Optical Co Ltd Average photometry method at plural points of automatic exposure camera
JPS57195226A (en) * 1981-05-27 1982-11-30 Olympus Optical Co Ltd Automatic exposure controller of camera
JPH0823648B2 (ja) * 1983-08-11 1996-03-06 株式会社ニコン カメラの優先モード設定装置
US5184159A (en) * 1989-07-25 1993-02-02 Asahi Kogaku Kogyo Kabushiki Kaisha Light source apparatus for endoscope
US5272497A (en) * 1989-07-25 1993-12-21 Asahi Kogaku Kogyo Kabushiki Kaisha Light source apparatus for endoscope
JP2868270B2 (ja) * 1990-02-14 1999-03-10 旭光学工業株式会社 カメラの露出制御装置
AU649805B2 (en) * 1991-04-15 1994-06-02 Asahi Kogaku Kogyo Kabushiki Kaisha Exposure control apparatus of camera
CA2066022C (fr) * 1991-04-15 2000-08-15 Osamu Sato Dispositif de commande d'exposition pour appareil photo
KR100210005B1 (ko) * 1991-04-15 1999-07-15 마츠모토 도루 카메라의 노출제어장치
JP5125010B2 (ja) * 2006-07-20 2013-01-23 ソニー株式会社 固体撮像装置、及び制御システム

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5640811B2 (fr) * 1972-12-29 1981-09-24
JPS5631572B2 (fr) * 1973-08-24 1981-07-22
JPS576565B2 (fr) * 1974-02-18 1982-02-05
JPS577420B2 (fr) * 1974-02-18 1982-02-10
JPS6018927B2 (ja) * 1975-11-06 1985-05-13 旭光学工業株式会社 カメラのデイジタル表示回路
JPS52119228A (en) * 1976-03-30 1977-10-06 Canon Inc Means for setting photograph information
JPS5358233A (en) * 1976-11-06 1978-05-26 Asahi Optical Co Ltd Digital control automatic exposure camera
JPS5379533A (en) * 1976-12-24 1978-07-14 Nippon Chemical Ind Exposure control device for camera

Also Published As

Publication number Publication date
DE3003745A1 (de) 1980-08-07
DE3003745C2 (de) 1984-05-03
US4306785A (en) 1981-12-22
GB2045957B (en) 1983-03-30
FR2448164A1 (fr) 1980-08-29
GB2059612A (en) 1981-04-23
GB2059612B (en) 1983-05-25
GB2045957A (en) 1980-11-05

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Legal Events

Date Code Title Description
DL Decision of the director general to leave to make available licences of right
ST Notification of lapse