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
Links
- 230000000694 effects Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Landscapes
- 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)
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)
| 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 |
-
1919
- 1919-03-31 AT AT84050D patent/AT84050B/en active
Cited By (1)
| 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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