FR2634032B1 - Appareil de mesure de luminosite a zones multiples - Google Patents

Appareil de mesure de luminosite a zones multiples

Info

Publication number
FR2634032B1
FR2634032B1 FR8909253A FR8909253A FR2634032B1 FR 2634032 B1 FR2634032 B1 FR 2634032B1 FR 8909253 A FR8909253 A FR 8909253A FR 8909253 A FR8909253 A FR 8909253A FR 2634032 B1 FR2634032 B1 FR 2634032B1
Authority
FR
France
Prior art keywords
measuring apparatus
brightness measuring
multiple area
area brightness
measuring
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
FR8909253A
Other languages
English (en)
Other versions
FR2634032A1 (fr
Inventor
Osamu Satoh
Isamu Hirai
Masahiro Nakata
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
Application filed by Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Publication of FR2634032A1 publication Critical patent/FR2634032A1/fr
Application granted granted Critical
Publication of FR2634032B1 publication Critical patent/FR2634032B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G03B7/099—Arrangement of photoelectric elements in or on the camera
    • 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
    • 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
    • G03B7/087—Analogue 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
    • 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
    • G03B7/099—Arrangement of photoelectric elements in or on the camera
    • G03B7/0993—Arrangement of photoelectric elements in or on the camera in the camera
    • G03B7/0997—Through the lens [TTL] measuring
    • G03B7/09971—Through the lens [TTL] measuring in mirror-reflex cameras
    • G03B7/09972—Through the lens [TTL] measuring in mirror-reflex cameras using the mirror as sensor light reflecting or transmitting member

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
FR8909253A 1988-07-08 1989-07-10 Appareil de mesure de luminosite a zones multiples Expired - Fee Related FR2634032B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63170568A JPH06105334B2 (ja) 1988-07-08 1988-07-08 分割測光装置

Publications (2)

Publication Number Publication Date
FR2634032A1 FR2634032A1 (fr) 1990-01-12
FR2634032B1 true FR2634032B1 (fr) 1994-05-27

Family

ID=15907249

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8909253A Expired - Fee Related FR2634032B1 (fr) 1988-07-08 1989-07-10 Appareil de mesure de luminosite a zones multiples

Country Status (5)

Country Link
US (1) US5021818A (fr)
JP (1) JPH06105334B2 (fr)
DE (1) DE3922672C2 (fr)
FR (1) FR2634032B1 (fr)
GB (1) GB2221764B (fr)

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JP2899031B2 (ja) * 1989-12-28 1999-06-02 キヤノン株式会社 自動露出制御装置
JP2934712B2 (ja) * 1990-02-19 1999-08-16 株式会社ニコン カメラの逆光検出装置
US5515133A (en) * 1990-05-07 1996-05-07 Minolta Camera Kabushiki Kaisha Flash apparatus
JP3076625B2 (ja) * 1991-04-09 2000-08-14 旭光学工業株式会社 カメラの測距装置
US5440369A (en) * 1992-11-30 1995-08-08 Asahi Kogakuogyo Kabushiki Kaisha Compact camera with automatic focal length dependent exposure adjustments
US5497229A (en) * 1993-05-28 1996-03-05 Asahi Kogaku Kogyo Kabushiki Kaisha Photometering apparatus having a split light receiving device
JPH07287161A (ja) * 1994-04-15 1995-10-31 Asahi Optical Co Ltd 多点測距装置
US6097836A (en) * 1996-07-22 2000-08-01 Nec Corporation Image processing system and its smoothing method for correcting color fog and backlight of a digital image
US6081669A (en) * 1996-11-15 2000-06-27 Asahi Kogaku Kogyo Kabushiki Kaisha Photometric operation system of camera
JP3477382B2 (ja) 1998-11-20 2003-12-10 ペンタックス株式会社 一眼レフカメラ
KR20010026698A (ko) * 1999-09-08 2001-04-06 이중구 자동 카메라 시스템의 자동 역광 보정 장치 및 방법
JP4413395B2 (ja) 2000-05-01 2010-02-10 Ｈｏｙａ株式会社 測光装置
JP4576175B2 (ja) * 2004-08-10 2010-11-04 Ｈｏｙａ株式会社 デジタルカメラ
JP4522307B2 (ja) * 2005-04-08 2010-08-11 キヤノン株式会社 画像撮像装置、画像撮像方法
US20080255840A1 (en) * 2007-04-16 2008-10-16 Microsoft Corporation Video Nametags
US8526632B2 (en) * 2007-06-28 2013-09-03 Microsoft Corporation Microphone array for a camera speakerphone
US8330787B2 (en) * 2007-06-29 2012-12-11 Microsoft Corporation Capture device movement compensation for speaker indexing
US8165416B2 (en) * 2007-06-29 2012-04-24 Microsoft Corporation Automatic gain and exposure control using region of interest detection
WO2013190762A1 (fr) * 2012-06-21 2013-12-27 ソニー株式会社 Dispositif imageur et procédé d'affichage d'images
US10951859B2 (en) 2018-05-30 2021-03-16 Microsoft Technology Licensing, Llc Videoconferencing device and method
CN116297346B (zh) * 2023-02-16 2026-02-17 歌尔股份有限公司 按键透过率测试方法、装置、设备及介质

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Publication number Priority date Publication date Assignee Title
US3394078A (en) * 1966-01-20 1968-07-23 Shell Oil Co Process for removing organic iodides from hydrocarbons
JPS5651728A (en) * 1979-10-03 1981-05-09 Fuji Photo Film Co Ltd Exposure control method
JPS5652732A (en) * 1979-10-05 1981-05-12 Fuji Photo Film Co Ltd Exposure control method
US4306787A (en) * 1979-11-22 1981-12-22 Nippon Kogaku K.K. Exposure control apparatus for camera provided with multi metering device
US4456354A (en) * 1980-01-11 1984-06-26 Olympus Optical Co., Ltd. Exposure controller for a camera
JPS56104323A (en) * 1980-01-23 1981-08-20 Minolta Camera Co Ltd Ttl photometric device of automatic exposure controlling single-lens reflex camera
JPS56155820A (en) * 1980-05-02 1981-12-02 Fuji Photo Film Co Ltd Photometric arithmetic system
US4391500A (en) * 1980-11-25 1983-07-05 Canon Kabushiki Kaisha Camera with exposure measuring system
US4423936A (en) * 1982-07-26 1984-01-03 Polaroid Corporation Photographic exposure control system and method
FR2532072B1 (fr) * 1982-08-21 1987-06-26 Olympus Optical Co Appareil photographique a commande de photometrie
JPS5946634A (ja) * 1982-09-09 1984-03-16 Minolta Camera Co Ltd 交換レンズのデ−タ出力装置
JPS59157621A (ja) * 1983-02-28 1984-09-07 Asahi Optical Co Ltd マルチモ−ドカメラにおける露出制御方式及び絞値，シヤツタ−速度表示方式
JPS6010217A (ja) * 1983-06-29 1985-01-19 Minolta Camera Co Ltd 焦点調整装置
US4821074A (en) * 1985-09-09 1989-04-11 Minolta Camera Kabushiki Kaisha Exposure control device for a camera
JPS6262229A (ja) * 1985-09-13 1987-03-18 Minolta Camera Co Ltd 多分割測光装置を有するカメラ
JPS6262231A (ja) * 1985-09-13 1987-03-18 Minolta Camera Co Ltd 多点測光装置
JPS6262230A (ja) * 1985-09-13 1987-03-18 Minolta Camera Co Ltd 複数の光情報を同時に測光する測光装置に於けるａ／ｄ変換装置
JPS6262228A (ja) * 1985-09-13 1987-03-18 Minolta Camera Co Ltd 多分割測光装置
JPH0740110B2 (ja) * 1986-03-03 1995-05-01 キヤノン株式会社 カメラ
JP2537143B2 (ja) * 1986-03-03 1996-09-25 キヤノン株式会社 カメラ
JPH0740109B2 (ja) * 1986-03-03 1995-05-01 キヤノン株式会社 カメラ
JPS637331A (ja) * 1986-06-28 1988-01-13 Nippon Steel Corp 非調質高張力鋼板の製造方法
JPS637330A (ja) * 1986-06-28 1988-01-13 Nippon Steel Corp 細粒フエライトを有する熱延鋼材の製造方法
JP2684551B2 (ja) * 1986-11-25 1997-12-03 キヤノン株式会社 カメラシステム、カメラ本体及び交換レンズ
JPS63271239A (ja) * 1986-12-05 1988-11-09 Asahi Optical Co Ltd レンズ交換式カメラ露出制御装置
US4809031A (en) * 1986-12-11 1989-02-28 Ricoh Company, Ltd. Photometer for use in a camera
JPH01267621A (ja) * 1988-04-20 1989-10-25 Minolta Camera Co Ltd カメラのスポット測光装置

Also Published As

Publication number Publication date
DE3922672A1 (de) 1990-01-11
GB2221764B (en) 1992-11-25
JPH06105334B2 (ja) 1994-12-21
DE3922672C2 (de) 1998-10-15
GB8915623D0 (en) 1989-08-23
GB2221764A (en) 1990-02-14
US5021818A (en) 1991-06-04
JPH0220839A (ja) 1990-01-24
FR2634032A1 (fr) 1990-01-12

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20080331