DE524496C - - Google Patents
Info
- Publication number
- DE524496C DE524496C DENDAT524496D DE524496DA DE524496C DE 524496 C DE524496 C DE 524496C DE NDAT524496 D DENDAT524496 D DE NDAT524496D DE 524496D A DE524496D A DE 524496DA DE 524496 C DE524496 C DE 524496C
- Authority
- DE
- Germany
- Prior art keywords
- grid
- spiral
- holes
- image
- lines
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
- H04N3/02—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only
- H04N3/04—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only having a moving aperture also apertures covered by lenses
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
- Facsimile Scanning Arrangements (AREA)
Description
DEUTSCHES REICHGERMAN EMPIRE
AUSGEGEBEN AM 7. MAI 1931ISSUED MAY 7, 1931
REiCHSPATENTAMTREICH PATENT OFFICE
PATENTSCHRIFTPATENT LETTERING
JVr 524496 KLASSE 21a1 GRUPPE 32JVr 524496 CLASS 21a 1 GROUP 32
T 35529 VIII al 21a1 Tag der Bekanntmachung über die Erteilung des Patents: 23. AprilT 35529 VIII al 21a 1 day of the announcement of the grant of the patent: April 23
Ludwig Tschörner in WienLudwig Tschörner in Vienna
Fernseheinrichtung Patentiert im Deutschen Reiche vom 8. August 1928 abTelevision equipment patented in the German Empire on August 8, 1928
Die Erfindung betrifft eine Einrichtung zur Übertragung von optischen Impulsen, insbesondere für die Zwecke des Fernsehens, der Bildübertragung, des Fernkinos u. dgl. Die Bildabtastung erfolgt durch eine Abtastscheibe mit spiralig angeordneten Lochrethen in Kombination mit einem optischen Linienraster derart, daß zu dessen Linien sich die Löcher der Spiralen quer bewegen. (Die Rasterlinien zerlegen das Blid eindimensional in Streifen.) Bewegt sich ein Loch der Lochreihe senkrecht oder annähernd senkrecht zu dem Streifenraster, so entstehen hintereinander Lichtpunktwirkungen, deren Dichte von der Anzahl der Rasterlinien abhängt, womit auch die Frequenz der überlagernden Welle bestimmt wird. Die Rasteriläche. welche durchsichtig ist, kann auch senkrecht zu den Rasterlinien beweglich sein, wodurch die Rasterfeinheit willkürlich änderbar wird, und zwar in der Weise, daß bei gleichgerichteter Bewegung von Rasterlinien und Loch die Rasterbreite scheinbar vergrößert, bei entgegengesetzter Richtung die Rasterbreite scheinbar verkleinert wird. Vorteilhaft besitzt jede Rasterlinie die Breite des Lochdurchmessers. The invention relates to a device for the transmission of optical pulses, in particular for the purposes of television, image transmission, remote cinema, etc. The image is scanned by a scanning disc with spirally arranged perforated holes in combination with an optical line grid in such a way that the holes of the spirals move transversely to its lines. (The grid lines break up the image one-dimensionally in strips.) If a hole in the row of holes moves vertically or almost vertically to the stripe grid, light point effects arise one after the other, their density depends on the number of grid lines, thus also the frequency of the overlapping Wave is determined. The grid area. which is transparent can also be vertical be movable to the grid lines, whereby the grid definition can be changed arbitrarily, in such a way that with the same movement of grid lines and hole the grid width appears to be larger, with the opposite direction the grid width is apparently reduced in size. Each grid line advantageously has the width of the hole diameter.
Um das Bild auf einfachste Weise in mehrere gesondert übertragbare Bildgruppen /u zerlegen, werden mehrere Spirallochreihen nebeneinander angeordnet, von denen jede Spirale für sich einen Teil des Bildes abtastet. Die Lichteindrücke jeder Spiralreihe werden in bekannter Weise auf lichtelektrische Zellen konzentriert; dei hierdurch erzeugte elektrische Impuls wird -verstärkt und mit seiner spezifischen Wellenlänge der Senderträgerwelle überlagert. Die verschiedenen Wellenlängen jeder Lochspirale werden erfindungsgemäß dadurch hervorgebracht, daß die von der Spirale abgetastete Bildfläche für jede Spirale verschiedene Rasterfeinheit besitzt, so daß die Anzahl der Liciitehidrücke pro Zeiteinheit für jede Spirale variiert und dadurch voneinander und von der Trägerwelle verschiedene Frequenzen erzeugt werden. To the picture in the simplest way in several separately transferable picture groups / u disassemble, several rows of spiral holes are arranged side by side, each of which Spiral scans part of the image for itself. The light impressions of each spiral row are concentrated in a known manner on photoelectric cells; the resulting electrical impulse is amplified and with its specific wavelength the Transmitter carrier wave superimposed. The different wavelengths of each spiral hole will be produced according to the invention in that the image area scanned by the spiral has different grid fineness for each spiral, so that the number of Liciitehidrucke varies per unit of time for each spiral and thereby from each other and from the carrier wave different frequencies are generated.
Auf der Zeichnung sind Bestandteile der Fernseheinrichtung als Ausführungsbeispiel dargestellt, und zwar zeigt Abb. 1 die Aufnahmescheibe mit mehreren Spirallochreihen in Ansicht, Abb. 2 die Rasterscheibe in Ansicht. In the drawing, components of the television equipment are shown as an exemplary embodiment shown, namely Fig. 1 shows the receiving disk with several rows of spiral holes in view, Fig. 2, the raster disk in view.
Die Einrichtung, mit welcher das zu sen-1 dende Bild abgetastet wird, besteht in dem Ausführungsbeispiel aus einer Scheibe 1, kann jedoch auch als Trommel ausgebildet sein. In der Scheibe 1 befinden sich vier Spirallochreihen 2, 3, 4, 5. Jede dieser Spiralen tastet einen besonderen Teil, im vorliegenden Falle ein Viertel des Bildes 6 ab. Zwischen den Lochreihen und dem Bilde liegt eine durchsichtige Rasterscheibe 7, deren darauf befindliche undurchsichtige parallele Rasterlinien 8, die zweckmäßig die Breite des Durchmessers der Löcher in den Spiralen besitzen, bewirken, daß der durch die Löcher durchgehende Lichtstrahl sooft beim Be-The means by which the transmitter 1 to Dende image is scanned, is in the embodiment of a disc 1, but may be formed as a drum. There are four rows of spiral holes 2, 3, 4, 5 in the disk 1. Each of these spirals scans a particular part, in the present case a quarter of the image 6. Between the rows of holes and the picture there is a transparent raster disc 7, the opaque parallel raster lines 8 on it, which expediently have the width of the diameter of the holes in the spirals, ensure that the light beam passing through the holes so often when loading
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT1779863X | 1928-08-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE524496C true DE524496C (en) |
Family
ID=3688922
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT524496D Active DE524496C (en) | 1928-08-01 |
Country Status (2)
Country | Link |
---|---|
US (1) | US1779863A (en) |
DE (1) | DE524496C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE865004C (en) * | 1937-08-25 | 1953-01-29 | Interessengemeinschaft Fuer Ru | Arrangement for the reproduction of a television picture, the individual elements of which are transmitted on different carrier waves |
-
0
- DE DENDAT524496D patent/DE524496C/de active Active
-
1928
- 1928-09-19 US US306954A patent/US1779863A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE865004C (en) * | 1937-08-25 | 1953-01-29 | Interessengemeinschaft Fuer Ru | Arrangement for the reproduction of a television picture, the individual elements of which are transmitted on different carrier waves |
Also Published As
Publication number | Publication date |
---|---|
US1779863A (en) | 1930-10-28 |
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