DE69132075T2 - Vorrichtung zur Steuerung der Lichtmenge - Google Patents

Vorrichtung zur Steuerung der Lichtmenge

Info

Publication number
DE69132075T2
DE69132075T2 DE69132075T DE69132075T DE69132075T2 DE 69132075 T2 DE69132075 T2 DE 69132075T2 DE 69132075 T DE69132075 T DE 69132075T DE 69132075 T DE69132075 T DE 69132075T DE 69132075 T2 DE69132075 T2 DE 69132075T2
Authority
DE
Germany
Prior art keywords
controlling
light
amount
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
DE69132075T
Other languages
English (en)
Other versions
DE69132075D1 (de
Inventor
Osamu Sato
Koichi Shimada
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.)
Canon Electronics Inc
Original Assignee
Canon Electronics Inc
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 JP2419082A external-priority patent/JP2571982B2/ja
Priority claimed from JP3121325A external-priority patent/JP2765769B2/ja
Priority claimed from JP3121323A external-priority patent/JP2765768B2/ja
Priority claimed from JP12132491A external-priority patent/JPH05232542A/ja
Application filed by Canon Electronics Inc filed Critical Canon Electronics Inc
Application granted granted Critical
Publication of DE69132075D1 publication Critical patent/DE69132075D1/de
Publication of DE69132075T2 publication Critical patent/DE69132075T2/de
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
    • G03B7/091—Digital circuits
    • G03B7/095—Digital 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
    • G03B7/081—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
    • G03B7/10—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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Diaphragms For Cameras (AREA)
  • Endoscopes (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Facsimile Scanning Arrangements (AREA)
DE69132075T 1990-12-25 1991-12-24 Vorrichtung zur Steuerung der Lichtmenge Expired - Fee Related DE69132075T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2419082A JP2571982B2 (ja) 1990-12-25 1990-12-25 光量制御装置および光量制御装置を有する光学機器
JP3121325A JP2765769B2 (ja) 1991-05-27 1991-05-27 光量調節装置
JP3121323A JP2765768B2 (ja) 1991-05-27 1991-05-27 光量調節装置
JP12132491A JPH05232542A (ja) 1991-05-27 1991-05-27 光量制御装置

Publications (2)

Publication Number Publication Date
DE69132075D1 DE69132075D1 (de) 2000-04-27
DE69132075T2 true DE69132075T2 (de) 2000-09-14

Family

ID=27470770

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69131039T Expired - Lifetime DE69131039T2 (de) 1990-12-25 1991-12-24 Vorrichtung zur Steuerung der Lichtmenge
DE69132075T Expired - Fee Related DE69132075T2 (de) 1990-12-25 1991-12-24 Vorrichtung zur Steuerung der Lichtmenge

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69131039T Expired - Lifetime DE69131039T2 (de) 1990-12-25 1991-12-24 Vorrichtung zur Steuerung der Lichtmenge

Country Status (4)

Country Link
US (3) US5646769A (de)
EP (2) EP0492617B1 (de)
CA (1) CA2058396C (de)
DE (2) DE69131039T2 (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2746509B2 (ja) * 1992-12-09 1998-05-06 キヤノン電子株式会社 光量制御装置
US5414460A (en) * 1993-06-08 1995-05-09 Eastman Kodak Company Mechanical aperture for controlling illumination level
US6443637B1 (en) 2000-03-15 2002-09-03 Eastman Kodak Company Camera with electrostatic light valve that functions as diaphragm
US6325554B1 (en) 2000-03-15 2001-12-04 Eastman Kodak Company Camera with electrostatic light valve that functions as image reflecting mirror for viewfinder
JP3802870B2 (ja) * 2002-12-20 2006-07-26 株式会社タムロン 光量調節装置
US7394497B2 (en) * 2003-03-27 2008-07-01 Fujifilm Corporation Camera with variable aperture member
JP4540322B2 (ja) * 2003-09-29 2010-09-08 Ｈｏｙａ株式会社 画像間対応点検出装置および画像間対応点検出方法
JP5065596B2 (ja) * 2003-10-29 2012-11-07 カール・ツァイス・エスエムティー・ゲーエムベーハー ダイアフラム交換装置
JP4250516B2 (ja) * 2003-12-08 2009-04-08 キヤノン株式会社 光量調節装置、光学装置および撮影装置
US20050226612A1 (en) * 2004-04-08 2005-10-13 Asia Optical Co., Inc. Automatic diaphragm assembly with a variable aperture for a lens
US7553094B2 (en) * 2004-07-01 2009-06-30 Canon Kabushiki Kaisha Light quantity adjusting apparatus, image pickup apparatus and optical apparatus
JP2006018019A (ja) * 2004-07-01 2006-01-19 Canon Inc 光量調節装置、撮像装置、及び光学装置
JP3983235B2 (ja) * 2004-08-20 2007-09-26 ニスカ株式会社 光量調整装置
KR100933294B1 (ko) 2007-11-29 2009-12-22 삼성전자주식회사 셔터 및 이를 구비한 마이크로 카메라 모듈
JP5373433B2 (ja) * 2009-02-27 2013-12-18 日本電産コパル株式会社 カメラ用絞り装置
KR20110081700A (ko) * 2010-01-08 2011-07-14 삼성전자주식회사 광 차폐 장치 및 그 제조방법
TWI468848B (zh) * 2010-03-04 2015-01-11 Hon Hai Prec Ind Co Ltd 機械式快門及採用該機械式快門的便攜式電子裝置
CN102193272B (zh) * 2010-03-05 2015-09-09 鸿富锦精密工业（深圳）有限公司 机械式快门及采用该机械式快门的便携式电子装置
KR20120068569A (ko) 2010-12-17 2012-06-27 삼성전자주식회사 광 차폐 장치 및 이를 구비한 전자 기기
KR101878719B1 (ko) 2011-06-24 2018-07-16 삼성전자 주식회사 광 차폐 장치 및 그 제조 방법
JP6172955B2 (ja) * 2013-01-30 2017-08-02 キヤノン株式会社 光量調整装置、レンズ鏡筒および撮像装置
US9134588B2 (en) * 2013-08-08 2015-09-15 Canon Kabushiki Kaisha Stop apparatus, and lens apparatus and image pickup apparatus having the same
TWI648590B (zh) * 2017-07-13 2019-01-21 致能機電工業股份有限公司 Mobile device with variable aperture function

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3984847A (en) * 1973-09-29 1976-10-05 Olympus Optical Co., Ltd. Electric eye exposure apparatus for use in a camera having a bladed shutter mechanism
US4335947A (en) * 1979-11-21 1982-06-22 Balda-Werke Photographische Gerate Und Kunststoff Gmbh & Co., Kg Camera shutter assembly
JPS5919471A (ja) * 1982-07-24 1984-01-31 Asahi Optical Co Ltd ビデオカメラのアイリス制御回路
US4470679A (en) * 1983-02-03 1984-09-11 Franz Starp Central shutter for cameras, especially professional cameras
JPS6083474A (ja) * 1983-10-13 1985-05-11 Canon Inc 撮像装置
US5134435A (en) * 1985-04-25 1992-07-28 Canon Kabushiki Kaisha Camera
US4716432A (en) * 1986-04-24 1987-12-29 Eastman Kodak Company Exposure control apparatus
JPS62188744U (de) * 1986-05-21 1987-12-01
US4862207A (en) * 1987-05-21 1989-08-29 Olympus Optical Company Limited Diaphragm apparatus for camera
JP2563334B2 (ja) * 1987-05-27 1996-12-11 オリンパス光学工業株式会社 絞り機構
JPH02156233A (ja) * 1988-12-08 1990-06-15 Nikon Corp 絞り装置
JPH02239782A (ja) * 1989-03-14 1990-09-21 Canon Electron Inc 光量制御装置
US5313244A (en) * 1989-06-28 1994-05-17 Asahi Kogaku Kogyo Kabushiki Kaisha Camera
US5115261A (en) * 1989-07-25 1992-05-19 Asahi Kogaku Kogyo Kabushiki Kaisha Photographing light quantity controller for endoscope
JPH0358040A (ja) * 1989-07-27 1991-03-13 Canon Inc カメラのストロボ撮影制御装置
US4978991A (en) * 1989-12-29 1990-12-18 Polaroid Corporation Open-loop stepper motor controlled shutter

Also Published As

Publication number Publication date
US5646769A (en) 1997-07-08
EP0708358A2 (de) 1996-04-24
DE69131039T2 (de) 1999-10-21
EP0492617A3 (en) 1993-05-26
DE69131039D1 (de) 1999-04-29
US5749015A (en) 1998-05-05
CA2058396A1 (en) 1992-06-26
EP0708358A3 (de) 1997-06-04
CA2058396C (en) 1995-05-30
US5646770A (en) 1997-07-08
DE69132075D1 (de) 2000-04-27
EP0492617B1 (de) 1999-03-24
EP0492617A2 (de) 1992-07-01
EP0708358B1 (de) 2000-03-22

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee