DE374195C - Cinematograph - Google Patents

Cinematograph

Info

Publication number
DE374195C
DE374195C DER56925D DER0056925D DE374195C DE 374195 C DE374195 C DE 374195C DE R56925 D DER56925 D DE R56925D DE R0056925 D DER0056925 D DE R0056925D DE 374195 C DE374195 C DE 374195C
Authority
DE
Germany
Prior art keywords
film
cinematograph
optical axis
axes
film reels
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
DER56925D
Other languages
German (de)
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.)
FRIEDRICH ROENSCH
Original Assignee
FRIEDRICH ROENSCH
Publication date
Priority to DER56925D priority Critical patent/DE374195C/en
Application granted granted Critical
Publication of DE374195C publication Critical patent/DE374195C/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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/32—Details specially adapted for motion-picture projection
    • G03B21/43—Driving mechanisms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection-Type Copiers In General (AREA)

Description

Es sind bereits Kinematographen bekannt, bei denen die optische Achse parallel zu den Achsen der Filmspulen und der Vor- und Nachwickeltrommel angeordnet ist. Bei diesen Apparaten sind die Filmspulen in gewisser Entfernung voneinander jede für sich auf einer Welle gelagert. Durch diese Anordnung wird aber bei Kinematographen mit großen Filmspulen die Größe des ApparatesThere are already known cinematographs in which the optical axis is parallel to the Axes of the film spools and the pre and post winding drum is arranged. With these Apparatus, the film reels are each supported on a shaft at a certain distance from one another. Through this arrangement however, in cinematographs with large film reels, the size of the apparatus becomes larger

ίο ganz bedeutend beeinflußt, so daß derartige Apparate für Amateurzwecke an Handlichkeit verlieren. Es hat sich herausgestellt, daß sich aber gerade bei Kinematographen, deren optische Achse parallel zu den Achsen der Filmführungsglieder angeordnet ist, die Größe des Apparates auf ein Minimum bringen läßt.ίο very significantly influenced, so that such Apparatus for amateur purposes lose their handiness. It turned out but that especially with cinematographs, whose optical axis is parallel to the axes the film guide members is arranged, the size of the apparatus can be minimized.

Nach der Erfindung wird dieses Minimum dadurch erreicht, daß man bei einem Kinematographen, an dem die Achsen der Filmspulen und der gleichzeitig zum Vor- und Nachwickeln dienenden Rolle parallel zur optischen Achse des Objektivs liegen, die Filmspulen derart anordnet, daß die von den Filmspulenmänteln umschlossenen Räume sich ganz oder zum Teil decken. Ersteres ist der Fall, wenn die beiden Filmspulen eine gemeinschaftliche Welle besitzen. Erst diese Verbindung dieser beiden getrennt gebräuchlichen Einrichtungen gestattet bei kleinen Apparaten die günstigste Raumausnutzung. In der Zeichnung ist die Erfindung in Ansicht und Aufsicht dargestellt, und zwar sind α und b die Filmspulen; c ist die Vor- und Nachwickeltrommel; d ist die optische Achse des nicht dargestellten Objektivs, und e ist der feste Rahmen des Bildfensters.According to the invention, this minimum is achieved by arranging the film reels in a cinematograph on which the axes of the film reels and the roller serving simultaneously for pre-winding and rewinding are parallel to the optical axis of the lens in such a way that those enclosed by the film reel jackets Rooms completely or partially coincide. The former is the case when the two film reels have a common shaft. Only this connection of these two separately used devices allows the most efficient use of space in the case of small apparatuses. In the drawing, the invention is shown in plan view, and that α and b are the film reels; c is the pre- and post-winding drum; d is the optical axis of the lens, not shown, and e is the fixed frame of the picture window.

Claims (1)

P ATENT-Anspruch:P ATENT claim: Kinematograph, dadurch gekennzeichnet, daß die Achsen der Filmspulen und Vor- und Nachwickeltrommel parallel zu der optischen Achse angeordnet sind, und daß die von den Filmspulenmänteln umschlossenen Räume sich ganz oder zum Teil decken.Cinematograph, characterized in that the axes of the film reels and The pre and post winding drums are arranged parallel to the optical axis, and that those enclosed by the film spool jackets Rooms completely or partially coincide. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings. Berlin, gedruckt in Der reiChsdruckereLBerlin, printed in Der reiChsdruckereL
DER56925D Cinematograph Expired DE374195C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER56925D DE374195C (en) Cinematograph

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER56925D DE374195C (en) Cinematograph

Publications (1)

Publication Number Publication Date
DE374195C true DE374195C (en) 1923-04-20

Family

ID=7410386

Family Applications (1)

Application Number Title Priority Date Filing Date
DER56925D Expired DE374195C (en) Cinematograph

Country Status (1)

Country Link
DE (1) DE374195C (en)

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