DE322064C - Device for changing between portrait and landscape format for cinematographic images by switching on mirrors - Google Patents

Device for changing between portrait and landscape format for cinematographic images by switching on mirrors

Info

Publication number
DE322064C
DE322064C DE1918322064D DE322064DD DE322064C DE 322064 C DE322064 C DE 322064C DE 1918322064 D DE1918322064 D DE 1918322064D DE 322064D D DE322064D D DE 322064DD DE 322064 C DE322064 C DE 322064C
Authority
DE
Germany
Prior art keywords
portrait
mirrors
changing
switching
landscape format
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
DE1918322064D
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.)
HOCHFORMATOR GmbH
Original Assignee
HOCHFORMATOR GmbH
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 HOCHFORMATOR GmbH filed Critical HOCHFORMATOR GmbH
Application granted granted Critical
Publication of DE322064C publication Critical patent/DE322064C/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
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/08—Trick photography

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)

Description

Vorrichtung zum Wechsel zwischen Hoch- und Querformat bei kinematographischen Bildern durch Einschalten von Spiegeln. Es ist bei gewissen kinematographischen Bildern erwünscht, das gebräuchliche Querformat durch das Hochformat zu ersetzen. Sollen mit demselben Apparat beide Bildgattungen vorgeführt werden, so bringt man im Strahlengang ein Spiegelsystem an, das das Bild um 9o° um die Längsachse des Strahlenbündels dreht. Um besondere Wirkungen zu erzielen, ist es nun erwünscht, in einer Bildreihe von dem einen Format zum anderen überzugehen, ohne den Betrieb zu unterbrechen; es muß dann das Spiegelsystem mindestens bei der Vorführung genau bei einem bestimmten Bilde ein- bzw. ausgeschaltet werden. Um dies zu ermöglichen, soll gemäß der Erfindung die zum Übergang von dem einen Format zum anderen erforderliche Bewegung der Spiegel selbsttätig erfolgen, z. B. in der 'Weise, daß an dem Filmband etwa vor derjenigen Stelle, wo die liegenden Bilder anfangen, die bei der Projektion aufrecht gebracht werden sollen, ein Organ angeordnet ist, welches mechanisch eine Hemmvorrichtung auslöst, wodurch das Spiegelsystem in den Weg der Lichtstrahlen gebracht wird. Unter Umständen kann afich die Auslösung dieses Spiegelsystems und dessen Anbringung an die gewünschte Stelle auf elektrischem Wege stattfinden.Device for changing between portrait and landscape format in cinematographic Pictures by turning on mirrors. It is at certain cinematographic Images desired to replace the usual landscape format with portrait format. If both picture genres are to be presented with the same apparatus, one brings a mirror system in the beam path, which the image by 9o ° around the longitudinal axis of the The beam rotates. In order to achieve special effects, it is now desirable to move from one format to the other in a series of images without interrupting the operation to interrupt; the mirror system must then be accurate at least during the presentation can be switched on or off for a specific image. In order to make this possible, should, according to the invention, be the one necessary for the transition from one format to the other Movement of the mirror take place automatically, z. B. in the 'way that on the film tape for example in front of the point where the horizontal images begin, which is the projection are to be brought upright, an organ is arranged, which mechanically a Jamming device triggers, causing the mirror system in the path of the light rays is brought. Under certain circumstances, afich can trigger this mirror system and its attachment to the desired location by electrical means.

Claims (1)

. PATENT-ANsPRUcH: Vorrichtung zum Wechsel zwischen Hoch- und Querformat bei kinematographischen Bildern durch Einschalten von Spiegeln, dadurch gekennzeichnet, daß die zum Wechsel erforderliche Bewegung der Spiegel selbsttätig erfolgt.. PATENT CLAIM: Device for changing between portrait and landscape format in the case of cinematographic images by switching on mirrors, characterized in that that the movement of the mirror required for the change takes place automatically.
DE1918322064D 1918-09-19 1918-09-19 Device for changing between portrait and landscape format for cinematographic images by switching on mirrors Expired DE322064C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE322064T 1918-09-19

Publications (1)

Publication Number Publication Date
DE322064C true DE322064C (en) 1920-06-17

Family

ID=6165039

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1918322064D Expired DE322064C (en) 1918-09-19 1918-09-19 Device for changing between portrait and landscape format for cinematographic images by switching on mirrors

Country Status (1)

Country Link
DE (1) DE322064C (en)

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