JPH0413690B2 - - Google Patents

Info

Publication number
JPH0413690B2
JPH0413690B2 JP59204644A JP20464484A JPH0413690B2 JP H0413690 B2 JPH0413690 B2 JP H0413690B2 JP 59204644 A JP59204644 A JP 59204644A JP 20464484 A JP20464484 A JP 20464484A JP H0413690 B2 JPH0413690 B2 JP H0413690B2
Authority
JP
Japan
Prior art keywords
electrostrictive element
shutter
voltage
transistor
blade
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
Application number
JP59204644A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6183525A (ja
Inventor
Yasuo Ishiguro
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.)
Nidec Precision Corp
Original Assignee
Nidec Copal 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 Nidec Copal Corp filed Critical Nidec Copal Corp
Priority to JP59204644A priority Critical patent/JPS6183525A/ja
Priority to US06/774,228 priority patent/US4609275A/en
Publication of JPS6183525A publication Critical patent/JPS6183525A/ja
Publication of JPH0413690B2 publication Critical patent/JPH0413690B2/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
    • G03B7/083—Analogue circuits for control of exposure time

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Shutters For Cameras (AREA)
  • Exposure Control For Cameras (AREA)
JP59204644A 1984-09-29 1984-09-29 露出制御装置 Granted JPS6183525A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP59204644A JPS6183525A (ja) 1984-09-29 1984-09-29 露出制御装置
US06/774,228 US4609275A (en) 1984-09-29 1985-09-09 Exposure control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59204644A JPS6183525A (ja) 1984-09-29 1984-09-29 露出制御装置

Publications (2)

Publication Number Publication Date
JPS6183525A JPS6183525A (ja) 1986-04-28
JPH0413690B2 true JPH0413690B2 (en]) 1992-03-10

Family

ID=16493890

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59204644A Granted JPS6183525A (ja) 1984-09-29 1984-09-29 露出制御装置

Country Status (2)

Country Link
US (1) US4609275A (en])
JP (1) JPS6183525A (en])

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62186237A (ja) * 1986-02-12 1987-08-14 Minolta Camera Co Ltd バイモルフ駆動素子を有するカメラ
US4851871A (en) * 1986-03-17 1989-07-25 Copal Company Limited Driving unit using electrostrictive element
US4811044A (en) * 1986-08-12 1989-03-07 Minolta Camera Kabushiki Kaisha Shutter actuating device
JPH063374Y2 (ja) * 1986-12-25 1994-01-26 株式会社コパル 電歪素子を駆動源とするレンズシヤツタ機構
JPS63201635A (ja) * 1987-02-18 1988-08-19 Minolta Camera Co Ltd バイモルフによつて駆動されるシヤツタ−と閃光発光手段を備えたカメラ
JPS63237044A (ja) * 1987-03-25 1988-10-03 Minolta Camera Co Ltd 電歪シヤツタ−駆動装置
JPS63262634A (ja) * 1987-04-21 1988-10-28 Minolta Camera Co Ltd カメラのバイモルフ駆動式シヤツタ−装置
US4862207A (en) * 1987-05-21 1989-08-29 Olympus Optical Company Limited Diaphragm apparatus for camera
US4920373A (en) * 1987-06-04 1990-04-24 Minolta Camera Kabushiki Kaisha Device for driving shutter
US5043753A (en) * 1989-09-01 1991-08-27 Copal Company Limited Camera shutter blade device
US7585122B2 (en) * 2006-03-15 2009-09-08 Nokia Corporation Aperture construction for a mobile camera

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1522008A1 (de) * 1967-01-26 1969-06-26 Agfa Gevaert Ag Belichtungssteuervorrichtung fuer fotografische oder kinematografische Kamera
DE1522014A1 (de) * 1967-02-23 1969-06-26 Agfa-Gevaert Ag, 5090 Leverkusen Kamera mit Belichtungssteuervorrichtung
US3476029A (en) * 1967-08-16 1969-11-04 Graflex Inc Electrochromic shutter system
US3986022A (en) * 1973-06-04 1976-10-12 Gilbert Peter Hyatt Illumination control system
JPS539525A (en) * 1976-07-14 1978-01-28 Copal Co Ltd Electromagnetic shutter

Also Published As

Publication number Publication date
US4609275A (en) 1986-09-02
JPS6183525A (ja) 1986-04-28

Similar Documents

Publication Publication Date Title
JPH0413690B2 (en])
JPS5986033A (ja) 撮像装置
US3343043A (en) Automatic exposure time control arrangement
JPS63262634A (ja) カメラのバイモルフ駆動式シヤツタ−装置
US4851871A (en) Driving unit using electrostrictive element
US4396831A (en) Shutter control system
US4400072A (en) Diaphragm device for a camera with interchangeable lenses
JPH064337Y2 (ja) 電歪素子駆動シヤツタ機構
US3469516A (en) Electrostatic control arrangement of a camera diaphragm
US4053908A (en) Exposure multiple setting device for programming electric shutter
JPH048411Y2 (en])
JPH0732272B2 (ja) 電歪素子駆動装置
US3961341A (en) Automatic shutter speed control means for a camera
JPH0531630Y2 (en])
US3864565A (en) Light amount integration means
JPH0435863Y2 (en])
JPH0720663Y2 (ja) ストロボ内蔵カメラ
US4104657A (en) Piezoelectric electronic shutter control for cameras
US3750546A (en) Electric shutter operating circuit
JPH0514254B2 (en])
US4470678A (en) Electric motor drive device for camera
US4057333A (en) Exposure time control device in a cinecamera
JPH0213770B2 (en])
USRE28678E (en) Electric exposure meter
US3765312A (en) Exposure control device