USB350025I5 - - Google Patents

Info

Publication number
USB350025I5
USB350025I5 US35002573A USB350025I5 US B350025 I5 USB350025 I5 US B350025I5 US 35002573 A US35002573 A US 35002573A US B350025 I5 USB350025 I5 US B350025I5
Authority
US
United States
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.)
Pending
Application number
Other languages
English (en)
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 US350025A priority Critical patent/US3927415A/en
Priority to GB1502074A priority patent/GB1429135A/en
Priority to DE2417380A priority patent/DE2417380C2/de
Priority to FR7412570A priority patent/FR2225764B1/fr
Priority to JP49040861A priority patent/JPS589931B2/ja
Priority to CA197,308A priority patent/CA1017187A/en
Publication of USB350025I5 publication Critical patent/USB350025I5/en
Application granted granted Critical
Publication of US3927415A publication Critical patent/US3927415A/en
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
    • G03B7/08—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
    • 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)
  • Exposure Control For Cameras (AREA)
  • Shutter-Related Mechanisms (AREA)
  • Diaphragms For Cameras (AREA)
  • Cameras In General (AREA)
US350025A 1973-04-11 1973-04-11 Electromagnetically regulated exposure control system Expired - Lifetime US3927415A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US350025A US3927415A (en) 1973-04-11 1973-04-11 Electromagnetically regulated exposure control system
GB1502074A GB1429135A (en) 1973-04-11 1974-04-04 Photographic exposure control systems
DE2417380A DE2417380C2 (de) 1973-04-11 1974-04-09 Fotografische Belichtungssteuervorrichtung
FR7412570A FR2225764B1 (de) 1973-04-11 1974-04-10
JP49040861A JPS589931B2 (ja) 1973-04-11 1974-04-10 ロシユツセイギヨソウチ
CA197,308A CA1017187A (en) 1973-04-11 1974-04-10 Electromagnetically regulated exposure control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US350025A US3927415A (en) 1973-04-11 1973-04-11 Electromagnetically regulated exposure control system

Publications (2)

Publication Number Publication Date
USB350025I5 true USB350025I5 (de) 1975-01-28
US3927415A US3927415A (en) 1975-12-16

Family

ID=23374935

Family Applications (1)

Application Number Title Priority Date Filing Date
US350025A Expired - Lifetime US3927415A (en) 1973-04-11 1973-04-11 Electromagnetically regulated exposure control system

Country Status (6)

Country Link
US (1) US3927415A (de)
JP (1) JPS589931B2 (de)
CA (1) CA1017187A (de)
DE (1) DE2417380C2 (de)
FR (1) FR2225764B1 (de)
GB (1) GB1429135A (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4017873A (en) * 1975-10-03 1977-04-12 Polaroid Corporation Exposure control system with braking capability
JPS5293322A (en) * 1976-02-02 1977-08-05 Fuji Photo Film Co Ltd Electromagnetic shutter
US4112450A (en) * 1976-02-18 1978-09-05 Fuji Photo Film Co., Ltd. Shutter device for a photographic camera
JPS5458024A (en) * 1977-10-17 1979-05-10 Nippon Chemical Ind Spring servo throttle controller for camera
US4209243A (en) * 1978-12-01 1980-06-24 Polaroid Corporation Shutter and trim apparatus
US4494846A (en) * 1981-10-27 1985-01-22 Copal Company Limited Electromagnetic shutter
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
US12411389B1 (en) * 2022-06-24 2025-09-09 Podium Fit, Inc. Camera privacy shutter

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3230853A (en) * 1961-01-20 1966-01-25 Durst S P A Fabrica Macchine E Photographic lens shutter mechanism
US3373672A (en) * 1963-07-03 1968-03-19 Hattori Tokeiten Kk Lens shutter
US3412660A (en) * 1965-03-13 1968-11-26 Agfa Gevaert Ag Exposure control device for photographic cameras
US3604330A (en) * 1967-09-19 1971-09-14 Compur Werk Gmbh & Co Magnetically driven photographic shutter with braking
US3633484A (en) * 1969-03-25 1972-01-11 Fuji Photo Film Co Ltd Electromagnetic shutter mechanism for a camera
US3744385A (en) * 1971-12-29 1973-07-10 Polaroid Corp Control system for photographic apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7010968U (de) * 1969-03-26 1970-08-27 Minolta Camera Kk Ausloesesicherheitsvorrichtung fuer eine die belichtung automatisch einstellende kamera.
DE2031565C3 (de) * 1970-06-26 1974-04-04 Rollei-Werke Franke & Heidecke, 3300 Braunschweig Elektromagnetischer Lamellenantrieb an fotografischen Objektiwer Schlüssen
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3230853A (en) * 1961-01-20 1966-01-25 Durst S P A Fabrica Macchine E Photographic lens shutter mechanism
US3373672A (en) * 1963-07-03 1968-03-19 Hattori Tokeiten Kk Lens shutter
US3412660A (en) * 1965-03-13 1968-11-26 Agfa Gevaert Ag Exposure control device for photographic cameras
US3604330A (en) * 1967-09-19 1971-09-14 Compur Werk Gmbh & Co Magnetically driven photographic shutter with braking
US3633484A (en) * 1969-03-25 1972-01-11 Fuji Photo Film Co Ltd Electromagnetic shutter mechanism for a camera
US3744385A (en) * 1971-12-29 1973-07-10 Polaroid Corp Control system for photographic apparatus

Also Published As

Publication number Publication date
FR2225764B1 (de) 1978-01-20
DE2417380C2 (de) 1983-01-20
CA1017187A (en) 1977-09-13
FR2225764A1 (de) 1974-11-08
JPS589931B2 (ja) 1983-02-23
GB1429135A (en) 1976-03-24
DE2417380A1 (de) 1974-10-31
US3927415A (en) 1975-12-16
JPS5013035A (de) 1975-02-10

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