DE1290169B - Color television receiving tube and arrangement with such a tube - Google Patents
Color television receiving tube and arrangement with such a tubeInfo
- Publication number
- DE1290169B DE1290169B DE1967G0050126 DEG0050126A DE1290169B DE 1290169 B DE1290169 B DE 1290169B DE 1967G0050126 DE1967G0050126 DE 1967G0050126 DE G0050126 A DEG0050126 A DE G0050126A DE 1290169 B DE1290169 B DE 1290169B
- Authority
- DE
- Germany
- Prior art keywords
- tube
- color
- color television
- index
- strips
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/26—Image pick-up tubes having an input of visible light and electric output
- H01J31/46—Tubes in which electrical output represents both intensity and colour of image
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/28—Non-electron-emitting electrodes; Screens
- H01J19/30—Non-electron-emitting electrodes; Screens characterised by the material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/89—Optical or photographic arrangements structurally combined or co-operating with the vessel
- H01J29/892—Optical or photographic arrangements structurally combined or co-operating with the vessel using fibre optics
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/89—Optical or photographic arrangements structurally combined or co-operating with the vessel
- H01J29/898—Spectral filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/89—Optical components associated with the vessel
- H01J2229/8913—Anti-reflection, anti-glare, viewing angle and contrast improving treatments or devices
- H01J2229/8916—Anti-reflection, anti-glare, viewing angle and contrast improving treatments or devices inside the vessel
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
- Discharge Lamp (AREA)
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
Description
Die Erfindung betrifft eine Farbfernseh-Aufnahmeröhre, die als sogenannte Strahlindexröhre arbeitet, und eine Anordnung mit einer solchen Röhre.The invention relates to a color television pickup tube, which works as a so-called beam index tube, and an arrangement with such a tube.
Indexröhren sind an sich bekannt, z. B. aus der Telefunken-Zeitung, 1965, Heft 1, S. 96 bis 104, oder aus der deutschen Auslegeschrift 1096 409. Das Farbstreifenraster wurde bisher entweder in die Aufnahmeröhre eingebaut oder in einer optischen Zwischenabbildungsebene angebracht.Index tubes are known per se, e.g. B. from the Telefunken newspaper, 1965, issue 1, pp. 96 to 104, or from the German Auslegeschrift 1096 409. The color stripe grid was previously either in the receiving tube built-in or mounted in an optical intermediate imaging plane.
Der Einbau in die Aufnahmeröhre ist technologisch außerordentlich schwierig, da auf die Innenseite der Frontscheibe zunächst das Farbstreifenraster mit Indexstreifen, dann die durchsichtige Signalelektrode und schließlich die fotoleitenden Streifen genau parallel und in Deckung zum Farbstreifenraster aufgebracht werden müssen. Dieser komplizierte Herstellprozeß führt zwangläufig zu hohen Ausfallraten und entsprechend hohem Röhrenpreis.The installation in the receiving tube is technologically extremely difficult because it is on the inside first the color stripe grid with index stripes, then the transparent signal electrode and finally the photoconductive strips are applied exactly parallel and in congruence with the color strip grid Need to become. This complicated manufacturing process inevitably leads to high failure rates and correspondingly high tube price.
Eine optische Zwischenabbildung mit Farbstreifenraster in der Zwischenbildebene bedingt ein aufwendiges optisches System (Relaislinsen, Feldlinsen).An optical intermediate image with a color stripe grid in the intermediate image plane requires a complex optical system (relay lenses, field lenses).
Der Erfindung liegt die Aufgabe zugrunde, eine einfache Farbfernseh-Aufnahmeröhre zu schaffen, die trotzdem alle Anforderungen, die an eine solche Röhre gestellt werden müssen, erfüllt.The invention is based on the object of creating a simple color television pickup tube, which nevertheless meets all the requirements that must be placed on such a tube.
Die Erfindung geht aus von einer Farbfernseh-Aufnahmeröhre, die unter Verwendung eines Vidikons als Strahlindexröhre arbeitet, deren Aufnahmeschirm aus einer durchgehenden fotoleitenden Schicht besteht und deren Frontscheibe als Faseroptik ausgebildet ist. Erfindungsgemäß ist auf diese Faseroptik-Frontscheibe außen ein Farbstreifenraster einschließlich Indexstreifen aufgebracht.The invention is based on a color television pickup tube using a vidicon works as a beam index tube, the receiving screen of which consists of a continuous photoconductive layer exists and the front panel is designed as fiber optics. According to the invention is on this fiber optic windshield on the outside a color stripe grid including index stripes is applied.
Die Erfindung ist im folgenden an Hand eines Ausführungsbeispiels näher erläutert und in der Zeichnung dargestellt.The invention is explained in more detail below with reference to an exemplary embodiment and in the Drawing shown.
Wie aus der Zeichnung zu ersehen ist, trägt die Faseroptik 1 ein Farbstreifenraster, das in an sich bekannter Weise aus Farbstreifen-Tripeln 2,3,4 (rot, grün, blau) besteht und mit Indexstreifen 5 versehen ist, die als lichtundurchlässige Streifen zwischen den Farbstreifen-Tripeln angeordnet sind. Das vom Objekt kommende Licht 10 trifft auf das Farbstreifenraster, und infolge der besonderen Eigenschaften der Faseroptik 1 liefert der abtastende Elektronenstrahl 9 im Röhrenkolben 6 das entsprechende Signal. Mit 7 ist der Kontaktring bezeichnet und mit 8 eine durchgehende Fotoschicht mit leitender Unterlage, die bei der erfindungsgemäßen Aufnahmeröhre nicht nach dem eingangs beschriebenen schwierigen Verfahren auf ein Farbstreifenraster aufgebracht wird, sondern sich wie bei einem normalen Vidikon innerhalb des Röhrenkolbens 6 befindet.As can be seen from the drawing, the fiber optics 1 carries a color stripe grid that is in itself as is known, consists of triples of colored stripes 2,3,4 (red, green, blue) and provided with index stripes 5 which are arranged as opaque stripes between the color stripe triples. That Light 10 coming from the object strikes the color stripe grid, and as a result of the special properties of the fiber optics 1, the scanning electron beam 9 in the tube piston 6 delivers the corresponding Signal. With 7 the contact ring is designated and with 8 a continuous photo layer with a conductive base, which are not difficult in the case of the pick-up tube according to the invention as described at the beginning Process is applied to a color stripe grid, but rather like a normal vidicon located inside the tubular piston 6.
In einer praktischen Ausführung kann beispielsweise ein foto^e^«)^i^si®est^:es-S:|^>5irejfQii-'.<:{iS;.i raster 2,3,4 einschließlich Indexstreifen 5, dessen Rasterlinien senkrecht zur Zeilenabtastrichrung orientiert sind, auf die Faseroptik-Frontscheibe 1 des Vidikons aufgeklebt werden. Das Farbstreifenraster muß die bekannten Indexstreifen 5 enthalten, die das Farbsynchronisiersignal liefern, so daß nach geeigneter Signalaufbereitung drei getrennte Farbsignale erzeugt werden können. Bei dem beschriebenen Ausführungsbeispiel liefern die zwischen den Farbstreifen-Tripeln 2, 3,4 liegenden Indexstreifen 5 Schwarz-Impulse, die durch Amplituden- oder Frequenzselektion aus dem Videosignal gewonnen werden und zur Synchronisierung des Farbumschalters dienen.In a practical implementation, for example, a foto ^ e ^ «) ^ i ^ si®est ^: es- S : | ^> 5irejfQii- '. < : {iS; .i raster 2, 3, 4 including index strips 5, the raster lines of which are oriented perpendicular to the line scan, are glued onto the fiber optic front pane 1 of the vidicon. The color stripe grid must contain the known index stripes 5, which supply the color synchronization signal, so that three separate color signals can be generated after suitable signal processing. In the embodiment described, the index stripes 5 lying between the color stripe triples 2, 3, 4 supply black pulses which are obtained from the video signal by amplitude or frequency selection and are used to synchronize the color switch.
Durch Einschaltung von Speichereinrichtungen (z. B. Haltekreise, Verzögerungsleitungen) kann die einzelne Farbinformation jeweils zeitlich auf einen vollen Farbzyklus gedehnt werden.By switching on storage devices (e.g. hold circuits, delay lines), the individual color information can be extended over time to a full color cycle.
Um den Verlust an Auflösungsvermögen in Zeilenrichtung, der bei diesem Röhrentyp, auch bei den bereits bekannten Ausführungen, unvermeidbar ist, auszugleichen, kann das aus den drei Farbsignalen gewonnene Helligkeitssignal einer in solchen Fällen üblichen Aperturkorrektur (Versteilerung der Anstiegsflanken) zugeführt werden.To avoid the loss of resolving power in the line direction, which occurs with this type of tube, also with the already known versions, which is unavoidable, can be compensated for from the three color signals Brightness signal obtained from an aperture correction that is usual in such cases (steepening of the rising edges) are fed.
Durch die erfindungsgemäße Farbfernseh-Aufnahmeröhre eröffnet sich die Möglichkeit zur Konstruktion einer relativ einfachen Farbfernsehkamera, die nur mit einer Aufnahmeröhre auskommt und für die es im Bereich des industriellen Fernsehens zahlreiche Verwendungsmöglichkeiten gibt. Neben der wesentlichen Vereinfachung der Farbfernsehkamera ergibt sich der Vorteil, daß die Rasterdeckung, die bei Verwendung mehrerer Aufnahmeröhren immer erhebliche Schwierigkeiten bereitet, völlig entfällt.The color television pick-up tube according to the invention opens up the possibility of construction a relatively simple color television camera that only needs one tube and for which there are numerous uses in the field of industrial television. In addition to the substantial simplification of the color television camera results in the advantage that the grid coverage, the always when using several pick-up tubes causes considerable difficulties, completely omitted.
Claims (4)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH438065A CH475648A (en) | 1964-04-18 | 1965-03-27 | Heavy-duty, low-emitting electrode and process for its manufacture |
NL6504890A NL6504890A (en) | 1964-04-18 | 1965-04-15 | |
GB1637365A GB1110031A (en) | 1964-04-18 | 1965-04-15 | Electrode for electrical discharge devices |
DE1967G0050126 DE1290169B (en) | 1964-04-18 | 1967-05-18 | Color television receiving tube and arrangement with such a tube |
CH346668A CH475649A (en) | 1964-04-18 | 1968-03-08 | Color television pickup tube |
FR1580928D FR1580928A (en) | 1964-04-18 | 1968-05-07 | |
GB2370568A GB1175657A (en) | 1964-04-18 | 1968-05-17 | Improvements in or relating to Colour Television Pickup Tubes and Pickup Tube Apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HUEE001085 | 1964-04-18 | ||
DE1967G0050126 DE1290169B (en) | 1964-04-18 | 1967-05-18 | Color television receiving tube and arrangement with such a tube |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1290169B true DE1290169B (en) | 1969-03-06 |
Family
ID=25978900
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1967G0050126 Withdrawn DE1290169B (en) | 1964-04-18 | 1967-05-18 | Color television receiving tube and arrangement with such a tube |
Country Status (5)
Country | Link |
---|---|
CH (2) | CH475648A (en) |
DE (1) | DE1290169B (en) |
FR (1) | FR1580928A (en) |
GB (2) | GB1110031A (en) |
NL (1) | NL6504890A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1096409B (en) * | 1958-04-28 | 1961-01-05 | Philips Nv | Camera tube for taking colored pictures |
-
1965
- 1965-03-27 CH CH438065A patent/CH475648A/en not_active IP Right Cessation
- 1965-04-15 NL NL6504890A patent/NL6504890A/xx unknown
- 1965-04-15 GB GB1637365A patent/GB1110031A/en not_active Expired
-
1967
- 1967-05-18 DE DE1967G0050126 patent/DE1290169B/en not_active Withdrawn
-
1968
- 1968-03-08 CH CH346668A patent/CH475649A/en not_active IP Right Cessation
- 1968-05-07 FR FR1580928D patent/FR1580928A/fr not_active Expired
- 1968-05-17 GB GB2370568A patent/GB1175657A/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1096409B (en) * | 1958-04-28 | 1961-01-05 | Philips Nv | Camera tube for taking colored pictures |
Also Published As
Publication number | Publication date |
---|---|
FR1580928A (en) | 1969-09-12 |
CH475649A (en) | 1969-07-15 |
GB1175657A (en) | 1969-12-23 |
CH475648A (en) | 1969-07-15 |
GB1110031A (en) | 1968-04-18 |
NL6504890A (en) | 1965-10-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
E77 | Valid patent as to the heymanns-index 1977 | ||
EHJ | Ceased/non-payment of the annual fee |