GB1472906A - Electromagnetic focal plane shutter - Google Patents

Electromagnetic focal plane shutter

Info

Publication number
GB1472906A
GB1472906A GB5118474A GB5118474A GB1472906A GB 1472906 A GB1472906 A GB 1472906A GB 5118474 A GB5118474 A GB 5118474A GB 5118474 A GB5118474 A GB 5118474A GB 1472906 A GB1472906 A GB 1472906A
Authority
GB
United Kingdom
Prior art keywords
blind
aperture
shutter
coils
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
GB5118474A
Other languages
English (en)
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Publication of GB1472906A publication Critical patent/GB1472906A/en
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
    • 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
    • G03B9/08—Shutters
    • G03B9/36—Sliding rigid plate
    • G03B9/40—Double plate
    • G03B9/42—Double plate with adjustable slot; with mechanism controlling relative movement of plates to form slot

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Shutters For Cameras (AREA)
  • Linear Motors (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Blinds (AREA)
GB5118474A 1973-11-27 1974-11-26 Electromagnetic focal plane shutter Expired GB1472906A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48133867A JPS598808B2 (ja) 1973-11-27 1973-11-27 リニアモ−タ−方式電子電動フオカルプレンシヤツタ−機構

Publications (1)

Publication Number Publication Date
GB1472906A true GB1472906A (en) 1977-05-11

Family

ID=15114896

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5118474A Expired GB1472906A (en) 1973-11-27 1974-11-26 Electromagnetic focal plane shutter

Country Status (4)

Country Link
US (1) US3987473A (cg-RX-API-DMAC7.html)
JP (1) JPS598808B2 (cg-RX-API-DMAC7.html)
DE (1) DE2455927C3 (cg-RX-API-DMAC7.html)
GB (1) GB1472906A (cg-RX-API-DMAC7.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132782A (en) * 1982-12-23 1984-07-11 Konishiroku Photo Ind Electromagnetically driven shutter device

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50139729A (cg-RX-API-DMAC7.html) * 1974-04-24 1975-11-08
JPS51138437A (en) * 1975-05-26 1976-11-30 Fuji Photo Film Co Ltd Device for driving optical blades
JPS5293323A (en) * 1976-01-31 1977-08-05 Fuji Photo Film Co Ltd Electromagnetic shutter
JPS5242117A (en) * 1975-09-29 1977-04-01 Fuji Photo Film Co Ltd Electromagnetic shutter
DE3003462C2 (de) * 1979-01-31 1987-03-26 Canon K.K., Tokio/Tokyo Elektrodynamischer Antrieb für einen Verschluß einer Kamera
JPS55143545A (en) * 1979-04-26 1980-11-08 Canon Inc Electromagnetically driven shutter
JPS55144217A (en) * 1979-04-28 1980-11-11 Canon Inc Electromagnetically driven slit exposure shutter
JPS6139383Y2 (cg-RX-API-DMAC7.html) * 1979-04-28 1986-11-12
JPS55149923A (en) * 1979-05-10 1980-11-21 Canon Inc Electromagnetically driven shutter
US4333722A (en) * 1980-12-22 1982-06-08 Eastman Kodak Company Method of controlling electromagnetic actuator in a camera, and actuator controllable thereby
US4338009A (en) * 1981-06-08 1982-07-06 Eastman Kodak Company Bistable actuating mechanism for optical apparatus
US4384778A (en) * 1981-11-09 1983-05-24 Eastman Kodak Company Integral, planar electromagnetic camera element/actuator
US4413895A (en) * 1982-03-22 1983-11-08 Eastman Kodak Company Electromagnetic actuator having a compliant armature
US4724452A (en) * 1986-11-03 1988-02-09 Eastman Kodak Company Shutter
US4890129A (en) * 1987-12-14 1989-12-26 Eastman Kodak Company Exposure control device
US4847726A (en) * 1987-12-14 1989-07-11 Eastman Kodak Company Magnetic actuator
US5606387A (en) * 1996-04-03 1997-02-25 Eastman Kodak Company Electromagnetic camera shutter with a conductive strip on the blade and a permanent magnet aperture
US5828920A (en) * 1996-04-23 1998-10-27 Eastman Kodak Company Translational electromagnetic camera shutter for variable aperture applications
US6033131A (en) * 1998-09-30 2000-03-07 Eastman Kodak Company Hybrid silicon-based micro-electromagnetic light shutter
US7903016B1 (en) * 2009-08-12 2011-03-08 Itt Manufacturing Enterprises, Inc. High power and high frequency gallium nitride based digital to analog converter for direct digital radio frequency power waveform synthesis
CN102748078A (zh) * 2012-04-21 2012-10-24 长沙润驰节能科技有限公司 磁力式自密封叶片气动马达
JP7113631B2 (ja) * 2017-11-24 2022-08-05 日本電産コパル株式会社 アクチュエータ、羽根駆動装置、撮像装置及び電子機器
US11693293B2 (en) * 2020-10-15 2023-07-04 Tdk Taiwan Corp. Optical system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124049A (en) * 1964-03-10 Automatic exposure control for camera
US2572229A (en) * 1947-09-16 1951-10-23 Gen Aniline & Film Corp Electrically operated photographic shutter
US3116670A (en) * 1963-02-27 1964-01-07 Vincent W Ball Automatic exposure control for cameras
US3513763A (en) * 1966-11-10 1970-05-26 Compur Werk Gmbh & Co Photographic shutter
US3628434A (en) * 1968-05-09 1971-12-21 Leitz Ernst Gmbh Focal-plane shutter for photographic camera

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132782A (en) * 1982-12-23 1984-07-11 Konishiroku Photo Ind Electromagnetically driven shutter device

Also Published As

Publication number Publication date
DE2455927C3 (de) 1980-01-31
DE2455927B2 (de) 1979-05-23
JPS598808B2 (ja) 1984-02-27
DE2455927A1 (de) 1975-06-05
US3987473A (en) 1976-10-19
JPS5089027A (cg-RX-API-DMAC7.html) 1975-07-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19941125