DE288547C - - Google Patents

Info

Publication number
DE288547C
DE288547C DENDAT288547D DE288547DA DE288547C DE 288547 C DE288547 C DE 288547C DE NDAT288547 D DENDAT288547 D DE NDAT288547D DE 288547D A DE288547D A DE 288547DA DE 288547 C DE288547 C DE 288547C
Authority
DE
Germany
Prior art keywords
box
wall opening
screen
demonstration
door
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.)
Active
Application number
DENDAT288547D
Other languages
German (de)
English (en)
Publication of DE288547C publication Critical patent/DE288547C/de
Active 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
    • G03B21/14—Details
    • G03B21/30—Details adapted to collapse or fold, e.g. for portability
    • 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
    • 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
    • G03B21/14—Details
    • G03B21/32—Details specially adapted for motion-picture projection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
DENDAT288547D Active DE288547C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE288547C true DE288547C (enrdf_load_stackoverflow)

Family

ID=543658

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT288547D Active DE288547C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE288547C (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2498294A (en) * 1945-11-30 1950-02-21 Westinghouse Electric Corp Light projector
US2628526A (en) * 1948-11-22 1953-02-17 Sr Francis T Coffey Motion-picture viewer
US2883904A (en) * 1957-04-10 1959-04-28 Rose Paradise De Combined movie camera, viewer and projector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2498294A (en) * 1945-11-30 1950-02-21 Westinghouse Electric Corp Light projector
US2628526A (en) * 1948-11-22 1953-02-17 Sr Francis T Coffey Motion-picture viewer
US2883904A (en) * 1957-04-10 1959-04-28 Rose Paradise De Combined movie camera, viewer and projector

Similar Documents

Publication Publication Date Title
DE288547C (enrdf_load_stackoverflow)
US3482911A (en) Image projection apparatus
AT72389B (de) Handkinematograph.
US3101025A (en) Combined optical reproducer and projector
US3334540A (en) Transparency registering device for the stage of a visual image projector
Thurstone A micro-film projector method for psychological tests
DE281026C (enrdf_load_stackoverflow)
AT233860B (de) Projektionsgerät für episkopische und diaskopische Projektion
DE380103C (de) Vorrichtung zur gleichzeitigen photographischen Aufnahme eines im Strahlengang der Linse und eines ausserhalb desselben liegenden Gegenstandes
DE509674C (de) Verfahren und Vorrichtung zur Feststellung der Bildwirkung kinematographisch aufzunehmender Szenen
DE448824C (de) Vorrichtung zum Projizieren von Reklamen, Bildern und Zeichen bei Dunkelheit in den Raum
DE549019C (de) Vorrichtung zum Bestimmen der einer bestimmten Belichtungszeit entsprechenden Blendenoeffnung
DE2127094A1 (de) Projektionszeichentisch
DE182669C (enrdf_load_stackoverflow)
Taft Increasing the usefulness of the short focus projection lantern. Part I
DE2237020A1 (de) Optisches vergroesserungsgeraet
DE561870C (de) Einrichtung zur Bildung von Druckspiegeln aus umbrechbaren, d. h. in abgesonderten Umbrucheinheiten unterteilbaren und sonstigen Druckvorlagen auf photographischem Wege
DE231526C (enrdf_load_stackoverflow)
Astell Significant aspects of visual aids in chemical education
CH97649A (de) Photographischer Apparat.
DE274030C (enrdf_load_stackoverflow)
DE802368C (de) Vorrichtung zum Vervielfaeltigen von Schriftstuecken u. dgl.
DE48492C (de) Einrichtung an photographischen Cameras, um mit einem Doppel-Objective sowohl Einzel-, als auch Stereoskop-Aufnahmen machen zu können
DE408562C (de) Kastenkino
DE1566051A1 (de) Geraet zur Projektion von Sehzeichen