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FR2411427A1 - ELECTRIC SHUTTER WITH ELECTROMAGNETIC RELEASE FOR PHOTOGRAPHIC CAMERA - Google Patents

ELECTRIC SHUTTER WITH ELECTROMAGNETIC RELEASE FOR PHOTOGRAPHIC CAMERA

Info

Publication number
FR2411427A1
FR2411427A1 FR7827404A FR7827404A FR2411427A1 FR 2411427 A1 FR2411427 A1 FR 2411427A1 FR 7827404 A FR7827404 A FR 7827404A FR 7827404 A FR7827404 A FR 7827404A FR 2411427 A1 FR2411427 A1 FR 2411427A1
Authority
FR
France
Prior art keywords
shutter
electromagnetic release
electric shutter
photographic camera
electric
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
FR7827404A
Other languages
French (fr)
Other versions
FR2411427B1 (en
Inventor
Katsuhiko Tsunefuji
Isao Kondo
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.)
Olympus Corp
Original Assignee
Olympus Optical 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
Priority claimed from JP11765077A external-priority patent/JPS5451525A/en
Priority claimed from JP11764977A external-priority patent/JPS5451527A/en
Priority claimed from JP1977153240U external-priority patent/JPS609775Y2/en
Application filed by Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Publication of FR2411427A1 publication Critical patent/FR2411427A1/en
Application granted granted Critical
Publication of FR2411427B1 publication Critical patent/FR2411427B1/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
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Shutters For Cameras (AREA)

Abstract

L'INVENTION CONCERNE UN OBTURATEUR ELECTRIQUE POUR APPAREIL PHOTOGRAPHIQUE, A DECLENCHEMENT ELECTROMAGNETIQUE, DONT LES LAMELLES D'OBTURATEUR 33, 34 SONT ACTIONNEES PAR UN MECANISME A RESSORT 6 REMONTE PAR LA MANOEUVRE D'ENROULEMENT DU FILM ET COMPORTANT UNDISPOSITIF MECANIQUE (DECLENCHEURS 5, 10, ETC.) ET ELECTROMAGNETIQUE (ELECTRO-AIMANT MG1, ETC.) COMMANDANT L'OUVERTURE ET LA FERMETURE DE L'OBTURATEUR DANS DES CONDITIONS OPTIMALES SOUS LA DIRECTION D'UN CIRCUIT ELECTRONIQUE APPROPRIE CORRIGEANT LES RETARDS DE FONCTIONNEMENT IMPUTABLES AUX DISPOSITIFS MECANIQUE ET ELECTROMAGNETIQUE ET PERMETTANT L'EMPLOI D'UNITES ANNEXES STROBOSCOPIQUE ET D'INTRODUCTION DE DONNEES EXCLUANT LES RISQUES DE DOUBLE INTRODUCTION.THE INVENTION CONCERNS AN ELECTRIC SHUTTER FOR A PHOTOGRAPHIC APPARATUS, WITH ELECTROMAGNETIC RELEASE, WHOSE SHUTTER BLADES 33, 34 ARE ACTUATED BY A SPRING MECHANISM 6 WIND UP BY THE MOVIE WINDING OPERATION AND CONTAINING A DISPLAY MECHANISM 5 (10). , ETC.) AND ELECTROMAGNETICS (ELECTRO-MAGNET MG1, ETC.) COMMANDING THE OPENING AND CLOSING OF THE SHUTTER UNDER OPTIMAL CONDITIONS UNDER THE DIRECTION OF AN APPROPRIATE ELECTRONIC CIRCUIT CORRECTING THE OPERATING DELAYS CAUSED BY THE MECHANICAL AND ELECTRIC DEVICES AND ALLOWING THE USE OF AUXILIARY STROBOSCOPIC AND DATA ENTRY UNITS EXCLUDING THE RISK OF DOUBLE ENTRY.

FR7827404A 1977-09-30 1978-09-25 ELECTROMAGNETIC SHUTTER ELECTRIC SHUTTER FOR PHOTOGRAPHIC APPARATUS Expired FR2411427B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP11765077A JPS5451525A (en) 1977-09-30 1977-09-30 Electric shutter camera
JP11764977A JPS5451527A (en) 1977-09-30 1977-09-30 Electric shutter of uniaxial rotation type
JP1977153240U JPS609775Y2 (en) 1977-11-15 1977-11-15 Single-axis rotary shutter

Publications (2)

Publication Number Publication Date
FR2411427A1 true FR2411427A1 (en) 1979-07-06
FR2411427B1 FR2411427B1 (en) 1987-08-14

Family

ID=27313425

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7827404A Expired FR2411427B1 (en) 1977-09-30 1978-09-25 ELECTROMAGNETIC SHUTTER ELECTRIC SHUTTER FOR PHOTOGRAPHIC APPARATUS

Country Status (3)

Country Link
DE (1) DE2842955A1 (en)
FR (1) FR2411427B1 (en)
GB (2) GB2005851B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4272168A (en) * 1978-09-08 1981-06-09 Olympus Optical Co., Ltd. Photographic camera of automatic exposure control type
DD206251A1 (en) * 1982-04-23 1984-01-18 Pentacon Dresden Veb MAGNETIC SYSTEM FOR PHOTOGRAPHIC CAMERAS
US7258244B2 (en) 2004-10-04 2007-08-21 Graham Packaging Company L.P. Hot-fill plastic container and method of manufacture

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3157100A (en) * 1960-09-21 1964-11-17 Olympus Optical Co Shutter devices for photographic cameras
GB1215380A (en) * 1968-01-19 1970-12-09 Ibbett Engineering Company Ltd Stillage or like supporting device
JPS5443372B2 (en) * 1971-12-16 1979-12-19
FR2273297B1 (en) * 1974-02-04 1977-04-15 Canon Kk
DE2440972C3 (en) * 1974-08-27 1986-10-02 Seiko Koki K.K., Tokio/Tokyo Camera shutter

Also Published As

Publication number Publication date
GB2005851B (en) 1982-08-04
DE2842955A1 (en) 1979-04-05
FR2411427B1 (en) 1987-08-14
GB2090667B (en) 1983-01-19
DE2842955C2 (en) 1988-01-28
GB2090667A (en) 1982-07-14
GB2005851A (en) 1979-04-25

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Legal Events

Date Code Title Description
ST Notification of lapse