AT84050B - 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
AT84050B
AT84050B AT84050DA AT84050B AT 84050 B AT84050 B AT 84050B AT 84050D A AT84050D A AT 84050DA AT 84050 B AT84050 B AT 84050B
Authority
AT
Austria
Prior art keywords
portrait
mirrors
switching
changing
landscape format
Prior art date
Application number
Other languages
German (de)
Inventor
Fritz Ing Kaufmann
Original Assignee
Fritz Ing Kaufmann
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 Fritz Ing Kaufmann filed Critical Fritz Ing Kaufmann
Application granted granted Critical
Publication of AT84050B publication Critical patent/AT84050B/en

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  • Studio Devices (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Vorrichtung zum Wechsel zwischen Hoch-und Querformat bei kinematographischen Bildern durch Einschalten von Spiegeln. 



   Es ist bei gewissen kinematographischen Bildern erwünscht, das   gebräuchlichste   Querformat durch das Hochformat zu ersetzen. Sollen mit demselben Apparat beide Bildgattungen vorgeführt werden, so bringt man im Strahlengang ein Spiegelsystem an, dass das Bild um   900   um die Längsachse des Strahlenbündels dreht. Um besondere Wirkungen zu erzielen, ist es nun erwünscht, in einer Bildreihe von dem einen Format zu dem 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 Projektierung 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 auch die Auslösung dieses Spiegelsystems und dessen Anbringung an die gewünschte Stelle auf elektrischem Wege stattfinden. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



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



   For certain cinematographic images, it is desirable to replace the most common landscape format with portrait format. If both types of images are to be presented with the same device, a mirror system is attached in the beam path that rotates the image by 900 around the longitudinal axis of the beam. In order to achieve particular effects, it is now desirable to move from one format to the other in a series of images without interrupting operation; the mirror system must then be zoomed in or out exactly for a certain image at least during the presentation. turned off. In order to make this possible, according to the invention, the movement of the mirror required for the transition from one format to the other should take place automatically, e.g.

   B. in such a way that an organ is arranged on the film tape, for example in front of the point where the lying images that are to be brought upright during the project planning begin. which mechanically triggers an inhibiting device, whereby the mirror system is placed in the path of the light rays. Under certain circumstances, this mirror system can also be triggered and attached to the desired location by electrical means.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Spiegelvorrichtung zum Wechsel zwischen Hoch-und Querformat hei kinematographischen Bildern durch Einschalten von Spiegeln, dadurch gekennzeichnet, dass die zum Wechsel erforderliche Bewegung der Spiegel selbsttätig erfolgt. EMI1.1 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Mirror device for changing between portrait and landscape format in cinematographic images by switching on mirrors, characterized in that the movement of the mirror necessary for the change takes place automatically. EMI1.1 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT84050D 1918-09-18 1919-03-31 Device for changing between portrait and landscape format for cinematographic images by switching on mirrors. AT84050B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE84050X 1918-09-18

Publications (1)

Publication Number Publication Date
AT84050B true AT84050B (en) 1921-05-25

Family

ID=5640264

Family Applications (1)

Application Number Title Priority Date Filing Date
AT84050D AT84050B (en) 1918-09-18 1919-03-31 Device for changing between portrait and landscape format for cinematographic images by switching on mirrors.

Country Status (1)

Country Link
AT (1) AT84050B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1126244B (en) * 1959-12-05 1962-03-22 Dresden Feinmess Optical arrangement on cinema projectors for films with widescreen and normal wall pictures

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1126244B (en) * 1959-12-05 1962-03-22 Dresden Feinmess Optical arrangement on cinema projectors for films with widescreen and normal wall pictures

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