DE2417617C2 - Belichtungssteuervorrichtung für photographische Apparate - Google Patents

Belichtungssteuervorrichtung für photographische Apparate

Info

Publication number
DE2417617C2
DE2417617C2 DE2417617A DE2417617A DE2417617C2 DE 2417617 C2 DE2417617 C2 DE 2417617C2 DE 2417617 A DE2417617 A DE 2417617A DE 2417617 A DE2417617 A DE 2417617A DE 2417617 C2 DE2417617 C2 DE 2417617C2
Authority
DE
Germany
Prior art keywords
control device
exposure control
exposure
plunger
electromagnet
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
DE2417617A
Other languages
German (de)
English (en)
Other versions
DE2417617A1 (de
Inventor
Conrad Heinrich Needham Mass. Biber
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.)
Polaroid Corp
Original Assignee
Polaroid 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 Polaroid Corp filed Critical Polaroid Corp
Publication of DE2417617A1 publication Critical patent/DE2417617A1/de
Application granted granted Critical
Publication of DE2417617C2 publication Critical patent/DE2417617C2/de
Expired 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
    • G03B19/00—Cameras
    • G03B19/02—Still-picture cameras
    • G03B19/12—Reflex cameras with single objective and a movable reflector or a partly-transmitting mirror
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Shutters For Cameras (AREA)
  • Fluid-Damping Devices (AREA)
  • Exposure Control For Cameras (AREA)
  • Diaphragms For Cameras (AREA)
DE2417617A 1973-04-11 1974-04-10 Belichtungssteuervorrichtung für photographische Apparate Expired DE2417617C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US349960A US3868712A (en) 1973-04-11 1973-04-11 Pneumatically reactive exposure control system

Publications (2)

Publication Number Publication Date
DE2417617A1 DE2417617A1 (de) 1974-11-07
DE2417617C2 true DE2417617C2 (de) 1983-01-13

Family

ID=23374707

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2417617A Expired DE2417617C2 (de) 1973-04-11 1974-04-10 Belichtungssteuervorrichtung für photographische Apparate

Country Status (6)

Country Link
US (1) US3868712A (enExample)
JP (1) JPS5736569B2 (enExample)
CA (1) CA1019612A (enExample)
DE (1) DE2417617C2 (enExample)
FR (1) FR2225763B1 (enExample)
GB (1) GB1464428A (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3969738A (en) * 1975-05-05 1976-07-13 Polaroid Corporation Exposure control system with inertial characteristic
US4121235A (en) * 1975-09-23 1978-10-17 Fuji Photo Film Co., Ltd. Electromagnetically operated shutter mechanism
JPS55149923A (en) * 1979-05-10 1980-11-21 Canon Inc Electromagnetically driven shutter
JPS5979228A (ja) * 1982-10-29 1984-05-08 Canon Inc 自動焦点調節カメラ
JP2539180Y2 (ja) * 1991-01-23 1997-06-25 旭光学工業株式会社 シャッターの開閉制御装置
US6008500A (en) * 1995-04-04 1999-12-28 Nikon Corporation Exposure apparatus having dynamically isolated reaction frame

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2523660A (en) * 1945-05-26 1950-09-26 Heiland Res Corp Electromagnetic camera shutter synchronizer
US2528734A (en) * 1945-07-21 1950-11-07 Edward A Brass Retarded solenoid tractive means
US2800844A (en) * 1952-02-15 1957-07-30 Durst Julius Automatic control for photographic cameras
US3091164A (en) * 1960-09-26 1963-05-28 Polaroid Corp Photographic apparatus
US3230853A (en) * 1961-01-20 1966-01-25 Durst S P A Fabrica Macchine E Photographic lens shutter mechanism
US3641889A (en) * 1970-09-02 1972-02-15 Polaroid Corp Exposure control system
DE2164484B2 (de) * 1970-12-25 1978-08-03 Minolta Camera K.K., Osaka (Japan) Elektronisch gesteuerter Blendenverschluß
DE2209913C2 (de) * 1972-03-02 1984-05-10 Rollei Fototechnic GmbH, 3300 Braunschweig Elektromagnetischer Lamellenantrieb an fotografischen Objektivverschlüssen

Also Published As

Publication number Publication date
JPS49131429A (enExample) 1974-12-17
JPS5736569B2 (enExample) 1982-08-04
US3868712A (en) 1975-02-25
FR2225763B1 (enExample) 1978-01-20
FR2225763A1 (enExample) 1974-11-08
DE2417617A1 (de) 1974-11-07
CA1019612A (en) 1977-10-25
GB1464428A (en) 1977-02-16

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8125 Change of the main classification

Ipc: G03B 9/24

8126 Change of the secondary classification

Ipc: G03B 7/10

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee