DE3462736D1 - Electromagnetic actuator generating equal and opposing force vectors - Google Patents

Electromagnetic actuator generating equal and opposing force vectors

Info

Publication number
DE3462736D1
DE3462736D1 DE8484106592T DE3462736T DE3462736D1 DE 3462736 D1 DE3462736 D1 DE 3462736D1 DE 8484106592 T DE8484106592 T DE 8484106592T DE 3462736 T DE3462736 T DE 3462736T DE 3462736 D1 DE3462736 D1 DE 3462736D1
Authority
DE
Germany
Prior art keywords
electromagnetic actuator
opposing force
force vectors
actuator generating
generating equal
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
DE8484106592T
Other languages
English (en)
Inventor
Christian C Petersen
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
Application granted granted Critical
Publication of DE3462736D1 publication Critical patent/DE3462736D1/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/14—Pivoting armatures
    • 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
    • G03B9/08—Shutters
    • G03B9/10—Blade or disc rotating or pivoting about axis normal to its plane
    • G03B9/18—More than two members
    • G03B9/22—More than two members each moving in one direction to open and then in opposite direction to close, e.g. iris type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/18—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/035—DC motors; Unipolar motors
    • H02K41/0352—Unipolar motors
    • H02K41/0354—Lorentz force motors, e.g. voice coil motors
    • H02K41/0358—Lorentz force motors, e.g. voice coil motors moving along a curvilinear path

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Shutters For Cameras (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
DE8484106592T 1983-06-22 1984-06-08 Electromagnetic actuator generating equal and opposing force vectors Expired DE3462736D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/506,787 US4531820A (en) 1983-06-22 1983-06-22 Electromagnetic actuator generating equal and opposing force vectors

Publications (1)

Publication Number Publication Date
DE3462736D1 true DE3462736D1 (en) 1987-04-23

Family

ID=24016012

Family Applications (2)

Application Number Title Priority Date Filing Date
DE198484106592T Pending DE129756T1 (de) 1983-06-22 1984-06-08 Elektromagnetische betaetigungsvorrichtung zur erzeugung gleicher und gegensaetzlicher kraftvektoren.
DE8484106592T Expired DE3462736D1 (en) 1983-06-22 1984-06-08 Electromagnetic actuator generating equal and opposing force vectors

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE198484106592T Pending DE129756T1 (de) 1983-06-22 1984-06-08 Elektromagnetische betaetigungsvorrichtung zur erzeugung gleicher und gegensaetzlicher kraftvektoren.

Country Status (5)

Country Link
US (1) US4531820A (de)
EP (1) EP0129756B1 (de)
JP (1) JPS6019131A (de)
CA (1) CA1210046A (de)
DE (2) DE129756T1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4605297A (en) * 1984-12-24 1986-08-12 Polaroid Corporation Method of and apparatus for controlling the application of processing fluid
JPS61202181U (de) * 1985-06-06 1986-12-18
US4650307A (en) * 1985-09-30 1987-03-17 Eastman Kodak Company Electromagnetic actuator
US5414460A (en) * 1993-06-08 1995-05-09 Eastman Kodak Company Mechanical aperture for controlling illumination level
DE69416348T2 (de) * 1993-06-08 1999-09-09 Eastman Kodak Co Beleuchtungskontrollsystem für einen Filmabtaster
US5534961A (en) * 1994-05-04 1996-07-09 Eastman Kodak Company Belt drive shutter device
US5561486A (en) * 1994-09-29 1996-10-01 Eastman Kodak Company Assembly for use in electromagnetic actuator
US5724625A (en) * 1996-06-07 1998-03-03 Eastman Kodak Company Belt-driven shutters
WO2001089067A1 (fr) 2000-05-18 2001-11-22 Nidec Copal Corporation Actionneur electromagnetique et obturateur pour appareil photographique
JP2001350172A (ja) * 2000-06-07 2001-12-21 Nisca Corp 光量調整装置及びこの光量調整装置を組込んだ光学装置
KR100762627B1 (ko) * 2005-11-17 2007-10-01 삼성전자주식회사 카메라 모듈의 셔터 구동 장치
WO2009081295A2 (en) 2007-12-19 2009-07-02 Koninklijke Philips Electronics, N.V. Magnetic spring system for use in a resonant motor
JP2011065074A (ja) * 2009-09-18 2011-03-31 Tricore Corp カメラ用シャッタ
JP5497390B2 (ja) * 2009-09-18 2014-05-21 泓記精密股▲分▼有限公司 カメラ用シャッタ
US8956059B1 (en) * 2014-06-26 2015-02-17 Melles-Griot Shutter with power-free magnetic detent
JP6770450B2 (ja) * 2017-01-25 2020-10-14 日本電産コパル株式会社 羽根駆動装置及びこの羽根駆動装置を備えた撮像機器

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3056341A (en) * 1958-05-15 1962-10-02 Polaroid Corp Photographic shutter mechanism
FR1453203A (fr) * 1962-10-11 1966-09-16 Système électro-magnétique pour engendrer des oscillations motrices linéaires oucirculaires ou des translations
US3455219A (en) * 1966-06-13 1969-07-15 Polaroid Corp Automatic aperture selection system
DE2150185A1 (de) * 1971-10-08 1973-04-12 Bosch Photokino Gmbh Fotografische kamera mit einem selbsttaetigen blendeneinstellmechanismus
US3781099A (en) * 1973-04-30 1973-12-25 Eastman Kodak Co Automatic or presettable diaphragm apparatus
US3882522A (en) * 1973-05-22 1975-05-06 Polaroid Corp Non-cocking springless shutter developing two parameter exposure regulation
DE2408932B2 (de) * 1974-02-25 1976-01-02 Balda-Werke Photographische Geraete Und Kunststoff Gmbh & Co Kg, 4980 Buende KameraverschluB mit zwei hintereinander angeordneten in Längsrichtung geführten Lamellen
US3942183A (en) * 1974-07-02 1976-03-02 Polaroid Corporation Camera with pivoting blades
JPS5931047B2 (ja) * 1975-03-28 1984-07-31 富士写真フイルム株式会社 光学機械用羽根
US4198863A (en) * 1975-05-13 1980-04-22 Gerhard Bartek Electromagnetic torsional stiffness element
US4121235A (en) * 1975-09-23 1978-10-17 Fuji Photo Film Co., Ltd. Electromagnetically operated shutter mechanism
US4112450A (en) * 1976-02-18 1978-09-05 Fuji Photo Film Co., Ltd. Shutter device for a photographic camera
DE2942636C2 (de) * 1978-10-23 1984-12-13 Canon K.K., Tokio/Tokyo Elektromagnetisch betätigter Zentralverschluß
JPS55143545A (en) * 1979-04-26 1980-11-08 Canon Inc Electromagnetically driven shutter
US4265530A (en) * 1979-06-05 1981-05-05 Polaroid Corporation Shutter blade drive system
JPS5636631A (en) * 1979-09-03 1981-04-09 Canon Inc Rotor of electromagnetic drive shutter
DE2944287A1 (de) * 1979-11-02 1981-05-14 Ibm Deutschland Gmbh, 7000 Stuttgart Elektromagnetische ausloesevorrichtung, insbesondere fuer den antrieb von druckhaemmern
DE3104001A1 (de) * 1980-02-08 1981-12-17 Canon K.K., Tokyo Elektromagnetisch angetriebener verschluss
JPS56117730U (de) * 1980-02-08 1981-09-09
JPS5793330A (en) * 1980-12-02 1982-06-10 Canon Inc Electromagnetic driving device of program electromagnetic shutter
US4333722A (en) * 1980-12-22 1982-06-08 Eastman Kodak Company Method of controlling electromagnetic actuator in a camera, and actuator controllable thereby
JPS57129163A (en) * 1981-01-30 1982-08-11 Brother Ind Ltd Actuator for sewing machine
US4338009A (en) * 1981-06-08 1982-07-06 Eastman Kodak Company Bistable actuating mechanism for optical apparatus
EP0110881A1 (de) * 1982-06-01 1984-06-20 EASTMAN KODAK COMPANY (a New Jersey corporation) Elektromagnetischer antrieb mit biegsamem flachanker

Also Published As

Publication number Publication date
CA1210046A (en) 1986-08-19
EP0129756B1 (de) 1987-03-18
US4531820A (en) 1985-07-30
JPS6019131A (ja) 1985-01-31
EP0129756A1 (de) 1985-01-02
DE129756T1 (de) 1985-05-09

Similar Documents

Publication Publication Date Title
DE3462736D1 (en) Electromagnetic actuator generating equal and opposing force vectors
EP0361670A3 (en) Electromagnetic actuator
GB8425775D0 (en) Electromagnetic actuator
GB8825529D0 (en) Magnetic field generating assembly
GB8506000D0 (en) Generating magnetic field
EP0454384A3 (en) Electrical via structure and method of forming the same
DE3574307D1 (en) Electromagnetic actuator
GB2176343B (en) Electromagnetic actuator
GB8614122D0 (en) Magnetic force generating method
HK8487A (en) Electromagnetic actuator
GB2165096B (en) Electromagnetic actuator apparatus
GB2171560B (en) Electromagnetic actuator
GB2174246B (en) Electromagnetic actuators and method for producing the same
GB2217521B (en) Electromagnetic vibration generators
GB2225486B (en) Electromagnetic contactor
IL62609A0 (en) Electromagnetic wave amplifiers and generators
GB2161025B (en) Electromagnetic actuator
GB8423429D0 (en) Electromagnetic deflection unit
EP0360271A3 (en) Electromagnetic polar relays
GB2169144B (en) Electromagnetic actuator
GB2135114B (en) Electromagnetic deflection unit
GB8333295D0 (en) Generating electrical and magnetic fields
EP0218968A3 (en) Electromagnetic actuator
DE3462415D1 (en) Low force electromagnetic valve
AU2579284A (en) Electromagnetic actuator apparatus

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee