JPH0427430U - - Google Patents

Info

Publication number
JPH0427430U
JPH0427430U JP1990067123U JP6712390U JPH0427430U JP H0427430 U JPH0427430 U JP H0427430U JP 1990067123 U JP1990067123 U JP 1990067123U JP 6712390 U JP6712390 U JP 6712390U JP H0427430 U JPH0427430 U JP H0427430U
Authority
JP
Japan
Prior art keywords
motor
timer
signal
light
photo interrupter
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
JP1990067123U
Other languages
English (en)
Japanese (ja)
Other versions
JP2517472Y2 (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 JP1990067123U priority Critical patent/JP2517472Y2/ja
Priority to DE4120450A priority patent/DE4120450A1/de
Priority to US07/719,866 priority patent/US5181064A/en
Priority to GB9113597A priority patent/GB2246641B/en
Publication of JPH0427430U publication Critical patent/JPH0427430U/ja
Application granted granted Critical
Publication of JP2517472Y2 publication Critical patent/JP2517472Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G03B7/26—Power supplies; Circuitry or arrangement to switch on the power source; Circuitry to check the power source voltage
    • 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
    • G03B7/097—Digital 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
    • G03B7/10—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
    • G03B9/14—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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/58—Means for varying duration of "open" period of shutter
    • 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)
  • Shutters For Cameras (AREA)
  • Exposure Control For Cameras (AREA)
JP1990067123U 1990-06-25 1990-06-25 カメラ用シャッタ Expired - Lifetime JP2517472Y2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1990067123U JP2517472Y2 (ja) 1990-06-25 1990-06-25 カメラ用シャッタ
DE4120450A DE4120450A1 (de) 1990-06-25 1991-06-20 Kameraverschluss
US07/719,866 US5181064A (en) 1990-06-25 1991-06-24 Camera shutter
GB9113597A GB2246641B (en) 1990-06-25 1991-06-24 Camera shutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990067123U JP2517472Y2 (ja) 1990-06-25 1990-06-25 カメラ用シャッタ

Publications (2)

Publication Number Publication Date
JPH0427430U true JPH0427430U (en]) 1992-03-04
JP2517472Y2 JP2517472Y2 (ja) 1996-11-20

Family

ID=13335813

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990067123U Expired - Lifetime JP2517472Y2 (ja) 1990-06-25 1990-06-25 カメラ用シャッタ

Country Status (4)

Country Link
US (1) US5181064A (en])
JP (1) JP2517472Y2 (en])
DE (1) DE4120450A1 (en])
GB (1) GB2246641B (en])

Families Citing this family (4)

* 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
US5907725A (en) * 1996-01-26 1999-05-25 Asahi Kogaku Kogyo Kabushiki Kaisha Electronically controlled camera
GB2309532B (en) * 1996-01-26 2000-08-30 Asahi Optical Co Ltd Exposure controlling device for camera
US5790905A (en) * 1996-01-26 1998-08-04 Asahi Kogaku Kogyo Kabushiki Kaisha Exposure controlling device for camera

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3950765A (en) * 1973-07-17 1976-04-13 Minolta Camera Kabushiki Kaisha Exposure control devices for photographic cameras
JPS54116223A (en) * 1978-03-01 1979-09-10 Minolta Camera Co Ltd Exposure time control apparatus
US4325614A (en) * 1980-12-16 1982-04-20 Polaroid Corporation Exposure control system with shutter operation controlled by a microcomputer
US4354748A (en) * 1981-06-22 1982-10-19 Polaroid Corporation Photographic exposure system with computer controlled strobe unit
US4751543A (en) * 1983-12-01 1988-06-14 Canon Kabushiki Kaisha Control signal generator for camera
GB2185586B (en) * 1986-01-13 1989-11-22 Seikosha Kk Shutter control device for a camera
JPH0789190B2 (ja) * 1986-02-03 1995-09-27 キヤノン株式会社 自動露出制御装置
JP2529345B2 (ja) * 1988-04-01 1996-08-28 富士写真フイルム株式会社 プログラムシャッタ駆動装置

Also Published As

Publication number Publication date
GB2246641A (en) 1992-02-05
GB2246641B (en) 1994-03-23
DE4120450A1 (de) 1992-01-09
JP2517472Y2 (ja) 1996-11-20
GB9113597D0 (en) 1991-08-14
US5181064A (en) 1993-01-19

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term