JPH0427432U - - Google Patents

Info

Publication number
JPH0427432U
JPH0427432U JP1990067125U JP6712590U JPH0427432U JP H0427432 U JPH0427432 U JP H0427432U JP 1990067125 U JP1990067125 U JP 1990067125U JP 6712590 U JP6712590 U JP 6712590U JP H0427432 U JPH0427432 U JP H0427432U
Authority
JP
Japan
Prior art keywords
sector
opening
exposure amount
photo interrupter
motor
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
JP1990067125U
Other languages
English (en)
Other versions
JP2517474Y2 (ja
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 filed Critical
Priority to JP1990067125U priority Critical patent/JP2517474Y2/ja
Priority to DE4120452A priority patent/DE4120452A1/de
Priority to GB9113604A priority patent/GB2246869B/en
Priority to US07/719,880 priority patent/US5220376A/en
Publication of JPH0427432U publication Critical patent/JPH0427432U/ja
Application granted granted Critical
Publication of JP2517474Y2 publication Critical patent/JP2517474Y2/ja
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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/08—Shutters
    • G03B9/10—Blade or disc rotating or pivoting about axis normal to its plane
    • G03B9/14—Two separate members moving in opposite directions
    • 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
    • G03B7/10—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 a servo-motor providing energy to move the setting member
    • 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
    • G03B9/08—Shutters
    • G03B9/10—Blade or disc rotating or pivoting about axis normal to its plane
    • G03B9/24—Adjusting size of aperture formed by members when fully open so as to constitute a virtual diaphragm that is adjustable
    • 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
    • G03B9/58—Means for varying duration of "open" period of shutter
    • G03B9/62—Means for varying duration of "open" period of shutter by varying interval of time between end of opening movement and beginning of closing movement

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)
  • Shutters For Cameras (AREA)

Description

【図面の簡単な説明】
第１図は本考案によるカメラ用シヤツタのブロ
ツク図、第２図は第１図に係わるセクターおよび
ロータの構成図、第３図は第１図に係わる回路図
、第４図はシヤツタ露光用パルステーブルの構成
図である。 １……ロータ（モータ）、５……ステータ（モ
ータ）、６……モータコイル（モータ）、１６，
１７……セクター、１９……フオトカプラ（フオ
トインタラプタ信号出力手段）、２０……誤差デ
ータ調整スイツチ（手段）、３０……ＣＰＵ、３
０ａ……ＲＯＭ（マトリツクスデータを記憶する
記憶手段）、ＤＧ……ＰＩ信号発生回路（セクタ
ー開閉速度検出手段）。

Claims (1)

    【実用新案登録請求の範囲】
  1. モータと、前記モータの回転でシヤツタ開口を
    開閉するセクターと、前記セクターの位置を検出
    しフオトインタラプタ信号を出力するフオトイン
    タラプタ信号出力手段と、前記フオトインタラプ
    タ信号から前記セクターの始動直後の速度を検出
    するセクター開閉速度検出手段と、測光手段で測
    光された被写体輝度から露光量を演算する露光量
    演算手段と、前記モータへの駆動パルス巾を決定
    し、かつ前記露光量演算手段で演算された前記露
    光量並びに前記セクター開閉速度検出手段で検出
    された前記セクターの開閉速度から索引されるデ
    ータを記憶する記憶手段と、前記記憶手段から索
    引された前記データを前記露光量演算手段で演算
    された前記露光量と実測された露光量との誤差に
    応じて調整するデータ調整手段とを備えたことを
    特徴とするカメラ用シヤツタ。
JP1990067125U 1990-06-25 1990-06-25 カメラ用シャッタ Expired - Fee Related JP2517474Y2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1990067125U JP2517474Y2 (ja) 1990-06-25 1990-06-25 カメラ用シャッタ
DE4120452A DE4120452A1 (de) 1990-06-25 1991-06-20 Kameraverschluss
GB9113604A GB2246869B (en) 1990-06-25 1991-06-24 Camera shutter
US07/719,880 US5220376A (en) 1990-06-25 1991-06-24 Arrangement for compensating for variable speed of a camera shutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990067125U JP2517474Y2 (ja) 1990-06-25 1990-06-25 カメラ用シャッタ

Publications (2)

Publication Number Publication Date
JPH0427432U true JPH0427432U (ja) 1992-03-04
JP2517474Y2 JP2517474Y2 (ja) 1996-11-20

Family

ID=13335875

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990067125U Expired - Fee Related JP2517474Y2 (ja) 1990-06-25 1990-06-25 カメラ用シャッタ

Country Status (4)

Country Link
US (1) US5220376A (ja)
JP (1) JP2517474Y2 (ja)
DE (1) DE4120452A1 (ja)
GB (1) GB2246869B (ja)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07152063A (ja) * 1993-11-29 1995-06-16 Nikon Corp カメラ
US5835800A (en) * 1993-12-13 1998-11-10 Nikon Corporation Camera and recording medium forwarding device suitable for use in a camera
JPH08211444A (ja) * 1995-02-01 1996-08-20 Nikon Corp シャッタ装置
GB2309532B (en) * 1996-01-26 2000-08-30 Asahi Optical Co Ltd Exposure controlling device for camera
US5907725A (en) * 1996-01-26 1999-05-25 Asahi Kogaku Kogyo Kabushiki Kaisha Electronically controlled camera
GB2309535B (en) * 1996-01-26 2000-08-09 Asahi Optical Co Ltd Exposure controlling device for camera
US5953545A (en) * 1996-01-26 1999-09-14 Asahi Kogaku Kogyo Kabushiki Kaisha Exposure controlling device for camera
US5790905A (en) * 1996-01-26 1998-08-04 Asahi Kogaku Kogyo Kabushiki Kaisha Exposure controlling device for camera
JP4212150B2 (ja) * 1998-07-03 2009-01-21 オリンパス株式会社 撮像装置
JP2001059985A (ja) 1999-08-23 2001-03-06 Seiko Precision Inc カメラ用シャッタ

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55143545A (en) * 1979-04-26 1980-11-08 Canon Inc Electromagnetically driven shutter
GB2185586B (en) * 1986-01-13 1989-11-22 Seikosha Kk Shutter control device for a camera
JP2608705B2 (ja) * 1986-01-13 1997-05-14 セイコープレシジョン株式会社 カメラ用シャッタ駆動モータの速度制御装置
JPS62194239A (ja) * 1986-02-21 1987-08-26 Seiko Koki Kk カメラ用シヤツタ制御装置
JPH0524896Y2 (ja) * 1986-12-26 1993-06-24
US5014082A (en) * 1989-12-04 1991-05-07 Polaroid Corporation Method and apparatus for compensating for shutter speed variations

Also Published As

Publication number Publication date
DE4120452A1 (de) 1992-01-16
US5220376A (en) 1993-06-15
JP2517474Y2 (ja) 1996-11-20
GB2246869B (en) 1994-03-09
GB2246869A (en) 1992-02-12

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees