JPS5785034A - Diaphragm controlling mechanism - Google Patents

Diaphragm controlling mechanism

Info

Publication number
JPS5785034A
JPS5785034A JP55161762A JP16176280A JPS5785034A JP S5785034 A JPS5785034 A JP S5785034A JP 55161762 A JP55161762 A JP 55161762A JP 16176280 A JP16176280 A JP 16176280A JP S5785034 A JPS5785034 A JP S5785034A
Authority
JP
Japan
Prior art keywords
diaphragm
spring
pulses
prescribed
aperture
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
JP55161762A
Other languages
English (en)
Other versions
JPH0318691B2 (ja
Inventor
Tetsuji Shono
Hiroshi Kurei
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
Priority to JP55161762A priority Critical patent/JPS5785034A/ja
Priority to US06/320,148 priority patent/US4396272A/en
Priority to DE3153756A priority patent/DE3153756C2/de
Priority to DE3145431A priority patent/DE3145431C2/de
Priority to GB8134559A priority patent/GB2088072B/en
Publication of JPS5785034A publication Critical patent/JPS5785034A/ja
Publication of JPH0318691B2 publication Critical patent/JPH0318691B2/ja
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
    • G03B7/085—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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/02—Diaphragms
    • G03B9/06—Two or more co-operating pivoted blades, e.g. iris type
    • 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
    • G03B9/07—Diaphragms with means for presetting the diaphragm

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Diaphragms For Cameras (AREA)
  • Exposure Control For Cameras (AREA)
JP55161762A 1980-11-17 1980-11-17 Diaphragm controlling mechanism Granted JPS5785034A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP55161762A JPS5785034A (en) 1980-11-17 1980-11-17 Diaphragm controlling mechanism
US06/320,148 US4396272A (en) 1980-11-17 1981-11-10 Aperture control mechanism
DE3153756A DE3153756C2 (ja) 1980-11-17 1981-11-16
DE3145431A DE3145431C2 (de) 1980-11-17 1981-11-16 Blendensteuervorrichtung in einer einäugigen Spiegelreflexkamera mit einem Wechselobjektiv
GB8134559A GB2088072B (en) 1980-11-17 1981-11-17 Lens diaphragm stop down mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55161762A JPS5785034A (en) 1980-11-17 1980-11-17 Diaphragm controlling mechanism

Publications (2)

Publication Number Publication Date
JPS5785034A true JPS5785034A (en) 1982-05-27
JPH0318691B2 JPH0318691B2 (ja) 1991-03-13

Family

ID=15741405

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55161762A Granted JPS5785034A (en) 1980-11-17 1980-11-17 Diaphragm controlling mechanism

Country Status (4)

Country Link
US (1) US4396272A (ja)
JP (1) JPS5785034A (ja)
DE (2) DE3145431C2 (ja)
GB (1) GB2088072B (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5883825A (ja) * 1981-11-13 1983-05-19 Kyocera Corp 絞り制御装置
JP2009042296A (ja) * 2007-08-06 2009-02-26 Nikon Corp 絞り制御装置およびカメラ
JP2011028243A (ja) * 2009-06-25 2011-02-10 Hoya Corp レンズ交換式カメラの絞り制御装置
JP2011028241A (ja) * 2009-06-25 2011-02-10 Hoya Corp レンズ交換式カメラの絞り制御装置

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4464040A (en) * 1981-11-26 1984-08-07 Asahi Kogaku Kogyo Kabushiki Kaisha Camera with diaphragm adjustment control
JPH0625837B2 (ja) * 1984-05-09 1994-04-06 株式会社精工舎 カメラ用シヤツタ
JPS6210631A (ja) * 1985-07-08 1987-01-19 Minolta Camera Co Ltd カメラの絞り制御装置
US5790905A (en) * 1996-01-26 1998-08-04 Asahi Kogaku Kogyo Kabushiki Kaisha Exposure controlling device for camera
US5930535A (en) * 1996-12-03 1999-07-27 Asahi Kogaku Kogyo Kabushiki Kaisha Exposure control device for camera
US6798093B2 (en) * 2000-07-28 2004-09-28 Canon Kabushiki Kaisha Dual coil permanent magnet motor having inner annular member
KR100727641B1 (ko) * 2004-12-06 2007-06-13 주식회사 하이소닉 프로젝션 시스템의 콘트라스트 증가를 위한 조리개 구동장치

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5386209A (en) * 1976-12-24 1978-07-29 Konishiroku Photo Ind Co Ltd Photograph diaphragm value detecting method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2929308A (en) * 1956-01-12 1960-03-22 Voigtlaender Ag Photographic camera having exchangeable objectives
US3672287A (en) * 1968-12-25 1972-06-27 Nippon Kogaku Kk Shiftable objective lens
JPS5018038A (ja) * 1973-06-19 1975-02-26
JPS5747577B2 (ja) * 1973-07-13 1982-10-09
JPS5321653B2 (ja) * 1973-08-27 1978-07-04
JPS607852B2 (ja) * 1978-01-31 1985-02-27 ソニー株式会社 選局装置
DE2944888C2 (de) * 1979-11-07 1982-05-27 Fa. Carl Zeiss, 7920 Heidenheim Blendensteuerungsmechanik mit kurzem linearen Hub

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5386209A (en) * 1976-12-24 1978-07-29 Konishiroku Photo Ind Co Ltd Photograph diaphragm value detecting method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5883825A (ja) * 1981-11-13 1983-05-19 Kyocera Corp 絞り制御装置
JP2009042296A (ja) * 2007-08-06 2009-02-26 Nikon Corp 絞り制御装置およびカメラ
US8744260B2 (en) 2007-08-06 2014-06-03 Nikon Corporation Aperture control device and camera
JP2011028243A (ja) * 2009-06-25 2011-02-10 Hoya Corp レンズ交換式カメラの絞り制御装置
JP2011028241A (ja) * 2009-06-25 2011-02-10 Hoya Corp レンズ交換式カメラの絞り制御装置

Also Published As

Publication number Publication date
GB2088072A (en) 1982-06-03
GB2088072B (en) 1985-06-26
US4396272A (en) 1983-08-02
DE3145431C2 (de) 1993-02-25
JPH0318691B2 (ja) 1991-03-13
DE3153756C2 (ja) 1993-09-23
DE3145431A1 (de) 1982-06-09

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