FR2864641B1 - Systeme d'appareil photographique - Google Patents

Systeme d'appareil photographique

Info

Publication number
FR2864641B1
FR2864641B1 FR0413841A FR0413841A FR2864641B1 FR 2864641 B1 FR2864641 B1 FR 2864641B1 FR 0413841 A FR0413841 A FR 0413841A FR 0413841 A FR0413841 A FR 0413841A FR 2864641 B1 FR2864641 B1 FR 2864641B1
Authority
FR
France
Prior art keywords
photographic system
photographic
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 - Fee Related
Application number
FR0413841A
Other languages
English (en)
Other versions
FR2864641A1 (fr
Inventor
Tadahisa Ohkura
Yutaka Ohsawa
Shigeru Iwamoto
Hiroyuki Takahashi
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
Pentax Corp
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 Pentax Corp filed Critical Pentax Corp
Publication of FR2864641A1 publication Critical patent/FR2864641A1/fr
Application granted granted Critical
Publication of FR2864641B1 publication Critical patent/FR2864641B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G03B7/20—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly in accordance with change of lens
    • 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
    • G03B7/085—Analogue circuits for control of aperture
    • 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
    • G03B7/097—Digital circuits for control of both exposure time and aperture
    • 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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/02—Diaphragms
FR0413841A 2003-12-26 2004-12-23 Systeme d'appareil photographique Expired - Fee Related FR2864641B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003432148A JP2005189602A (ja) 2003-12-26 2003-12-26 カメラシステム

Publications (2)

Publication Number Publication Date
FR2864641A1 FR2864641A1 (fr) 2005-07-01
FR2864641B1 true FR2864641B1 (fr) 2007-08-10

Family

ID=34132076

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0413841A Expired - Fee Related FR2864641B1 (fr) 2003-12-26 2004-12-23 Systeme d'appareil photographique

Country Status (4)

Country Link
US (1) US7313323B2 (fr)
JP (1) JP2005189602A (fr)
FR (1) FR2864641B1 (fr)
GB (1) GB2409532B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2282519B1 (fr) * 2005-12-06 2016-01-27 Panasonic Corporation Appareil photo numerique
JP5013792B2 (ja) * 2006-09-13 2012-08-29 ペンタックスリコーイメージング株式会社 撮像装置
JP5570258B2 (ja) * 2010-03-17 2014-08-13 キヤノン株式会社 交換レンズおよびカメラレンズシステム
JP5709806B2 (ja) * 2012-07-10 2015-04-30 キヤノン株式会社 レンズユニットおよび撮像装置
US10139654B2 (en) * 2015-09-25 2018-11-27 Canon Kabushiki Kaisha Optical apparatus that reduces driving noised by adjusting light transmissivity and camera system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785266A (en) 1970-11-05 1974-01-15 Canon Kk A single lens reflex camera capable of open aperture photometry and aperture stop photometry
JPS5623130B2 (fr) 1972-12-04 1981-05-29
JPS5323487Y2 (fr) 1973-10-19 1978-06-17
US3982257A (en) 1974-08-19 1976-09-21 Fuji Photo Optical Co., Ltd. Means for enabling stopped-down measurement in exposure control camera employing full-aperture measuring system
JPS6214129A (ja) * 1985-07-10 1987-01-22 Minolta Camera Co Ltd 一眼レフレツクスカメラのプレビユ−装置
AU649805B2 (en) 1991-04-15 1994-06-02 Asahi Kogaku Kogyo Kabushiki Kaisha Exposure control apparatus of camera
JP3199806B2 (ja) 1991-04-15 2001-08-20 旭光学工業株式会社 カメラの露出制御装置
JP3153482B2 (ja) * 1996-11-19 2001-04-09 旭光学工業株式会社 一眼レフカメラのプレビュー装置
JP2001109032A (ja) 1999-10-07 2001-04-20 Asahi Optical Co Ltd カメラの露出制御装置

Also Published As

Publication number Publication date
GB2409532A (en) 2005-06-29
GB0428329D0 (en) 2005-02-02
FR2864641A1 (fr) 2005-07-01
JP2005189602A (ja) 2005-07-14
GB2409532B (en) 2006-10-11
US7313323B2 (en) 2007-12-25
US20050141890A1 (en) 2005-06-30

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20110831