FR2418945A1 - Dispositif de changement d'image pour un projecteur projetant des images de grandes dimensions - Google Patents

Dispositif de changement d'image pour un projecteur projetant des images de grandes dimensions

Info

Publication number
FR2418945A1
FR2418945A1 FR7905529A FR7905529A FR2418945A1 FR 2418945 A1 FR2418945 A1 FR 2418945A1 FR 7905529 A FR7905529 A FR 7905529A FR 7905529 A FR7905529 A FR 7905529A FR 2418945 A1 FR2418945 A1 FR 2418945A1
Authority
FR
France
Prior art keywords
image
plate
changing device
magazine
large images
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
FR7905529A
Other languages
English (en)
Other versions
FR2418945B1 (fr
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2418945A1 publication Critical patent/FR2418945A1/fr
Application granted granted Critical
Publication of FR2418945B1 publication Critical patent/FR2418945B1/fr
Granted 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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/132—Overhead projectors, i.e. capable of projecting hand-writing or drawing during action
    • 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
    • G03B23/00—Devices for changing pictures in viewing apparatus or projectors
    • G03B23/02—Devices for changing pictures in viewing apparatus or projectors in which a picture is removed from a stock and returned to the same stock or another one; Magazines therefor
    • G03B23/04—Devices for changing pictures in viewing apparatus or projectors in which a picture is removed from a stock and returned to the same stock or another one; Magazines therefor with linear movement
    • G03B23/044—Devices for changing pictures in viewing apparatus or projectors in which a picture is removed from a stock and returned to the same stock or another one; Magazines therefor with linear movement whereby the picture is returned to the same stock
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S353/00—Optics: image projectors
    • Y10S353/05—Transparency holder accessories

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automatic Disk Changers (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Warehouses Or Storage Devices (AREA)

Abstract

a. Dispositif de changement d'image pour un projecteur projetant des images de grandes dimensions. b. Dispositif caractérisé en ce qu'il comporte un magasin pour les plaques d'image où les plaques sont stockées dans des positions déterminées par rapport à ce magasin, des moyens d'ajustement permettant d'ajuster la position du magasin de façon qu'une plaque d'image déterminée soit située parallèlement au plan de la plaque transparente et légèrement au-dessus de ce dernier, des moyens d'extraction étant prévus pour saisir cette plaque d'image et la tirer sur la plaque transparente et également pour repousser cette plaque d'image dans le magasin. c. L'invention s'applique notamment aux rétroprojecteurs.
FR7905529A 1978-03-03 1979-03-02 Dispositif de changement d'image pour un projecteur projetant des images de grandes dimensions Granted FR2418945A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7802475A SE410661B (sv) 1978-03-03 1978-03-03 Bildvexlingsanordning for storbildsprojektorer

Publications (2)

Publication Number Publication Date
FR2418945A1 true FR2418945A1 (fr) 1979-09-28
FR2418945B1 FR2418945B1 (fr) 1985-02-15

Family

ID=20334188

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7905529A Granted FR2418945A1 (fr) 1978-03-03 1979-03-02 Dispositif de changement d'image pour un projecteur projetant des images de grandes dimensions

Country Status (6)

Country Link
US (1) US4264158A (fr)
DE (1) DE2906982C2 (fr)
DK (1) DK85679A (fr)
FR (1) FR2418945A1 (fr)
GB (1) GB2017957B (fr)
SE (1) SE410661B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0434583A1 (fr) * 1989-12-22 1991-06-26 Jean Genieis Dispositifs pour alimenter automatiquement un projecteur d'images

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3243172A1 (de) * 1982-11-23 1984-05-24 MAP Mikrofilm Apparatebau Dr. Poehler GmbH & Co KG, 6352 Ober-Mörlen Magazin fuer ebene informationstraeger sowie mikrofilm-lesegeraet mit einem solchen
DE3925087A1 (de) * 1989-07-28 1991-01-31 Abels Frank Consulting Tech Tageslichtprojektor mit automatischer wechselvorrichtung fuer projektionsfolien
US5172145A (en) * 1990-12-21 1992-12-15 Eastman Kodak Company Bidirectional, cassette-loaded changer mechanism for overhead transparencies
US5526077A (en) * 1993-07-19 1996-06-11 Canon Kabushiki Kaisha Original feeding device
US5440362A (en) * 1994-04-22 1995-08-08 Jones; Jeffrey S. Transparency display system
US5467152A (en) * 1994-04-28 1995-11-14 Wilson; James S. Overhead projector
US5475453A (en) * 1994-08-08 1995-12-12 Maccarthy; Patrick Manually-operated tray assembly for dispensing and receiving overhead projector transparencies

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH219446A (fr) * 1941-08-06 1942-02-15 Strobino Goecking Cleo Appareil servant à faire passer indéfiniment une série de plaques-clichés de même format dans une lanterne à projection.
DE1176895B (de) * 1961-02-16 1964-08-27 Klemens Keyser Bildwerfer mit Bildmagazin
DE2345333A1 (de) * 1973-09-07 1975-04-17 Braun Ag Vorrichtung zum vertikalen bewegen von dia-positiven in projektionsgeraeten
FR2269735A1 (en) * 1974-04-30 1975-11-28 Besancenot Serge Projector slide change mechanism - has pivoting transfer frame in slide carrier operated by sliding carrier

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2898807A (en) * 1955-09-13 1959-08-11 Eastman Kodak Co Slide changing mechanism
DE1151945B (de) * 1958-04-05 1963-07-25 Karl Meyer Bildwechselkassette fuer optische Anzeichengeraete
US3269261A (en) * 1963-09-30 1966-08-30 Porter & Co Inc Registration method and frame
US3528735A (en) * 1968-05-01 1970-09-15 Microform Data Systems Microimage viewer including automatic matrix selection
US3743400A (en) * 1970-12-24 1973-07-03 Microform Data Syst Inc Film strip handling apparatus and method
GB1432144A (en) * 1972-07-07 1976-04-14 Pennant Display & Eng Ltd Optical projection systems
US3993405A (en) * 1974-05-06 1976-11-23 Metagraphic Systems, Inc. Apparatus for viewing a preselected one of a plurality of media stored in a container
US4120573A (en) * 1976-06-28 1978-10-17 Bell & Howell Company Microfiche reader
DE2707904C3 (de) * 1977-02-24 1979-12-20 Bruno 5238 Hachenburg Meyer Projektor für Dia-Platten

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH219446A (fr) * 1941-08-06 1942-02-15 Strobino Goecking Cleo Appareil servant à faire passer indéfiniment une série de plaques-clichés de même format dans une lanterne à projection.
DE1176895B (de) * 1961-02-16 1964-08-27 Klemens Keyser Bildwerfer mit Bildmagazin
DE2345333A1 (de) * 1973-09-07 1975-04-17 Braun Ag Vorrichtung zum vertikalen bewegen von dia-positiven in projektionsgeraeten
FR2269735A1 (en) * 1974-04-30 1975-11-28 Besancenot Serge Projector slide change mechanism - has pivoting transfer frame in slide carrier operated by sliding carrier

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0434583A1 (fr) * 1989-12-22 1991-06-26 Jean Genieis Dispositifs pour alimenter automatiquement un projecteur d'images
FR2656433A1 (fr) * 1989-12-22 1991-06-28 Genieis Jean Dispositifs pour alimenter automatiquement un projecteur d'images.
US5059020A (en) * 1989-12-22 1991-10-22 Genieis Jean A Devices for automatically feeding an image projector

Also Published As

Publication number Publication date
DE2906982A1 (de) 1979-09-06
FR2418945B1 (fr) 1985-02-15
US4264158A (en) 1981-04-28
GB2017957A (en) 1979-10-10
SE410661B (sv) 1979-10-22
GB2017957B (en) 1982-06-23
SE7802475L (sv) 1979-09-04
DE2906982C2 (de) 1982-05-06
DK85679A (da) 1979-09-04

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Legal Events

Date Code Title Description
ST Notification of lapse