DE712222C - Method for operating image storage tubes - Google Patents

Method for operating image storage tubes

Info

Publication number
DE712222C
DE712222C DEF83287D DEF0083287D DE712222C DE 712222 C DE712222 C DE 712222C DE F83287 D DEF83287 D DE F83287D DE F0083287 D DEF0083287 D DE F0083287D DE 712222 C DE712222 C DE 712222C
Authority
DE
Germany
Prior art keywords
image storage
storage tubes
image
operating image
tubes
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
DEF83287D
Other languages
German (de)
Inventor
Dr Heinrich Struebig
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.)
Robert Bosch Fernsehanlagen GmbH
Original Assignee
Fernseh 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 Fernseh GmbH filed Critical Fernseh GmbH
Priority to DEF83287D priority Critical patent/DE712222C/en
Application granted granted Critical
Publication of DE712222C publication Critical patent/DE712222C/en
Expired legal-status Critical Current

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
    • H01J31/28—Image pick-up tubes having an input of visible light and electric output with electron ray scanning the image screen

Landscapes

  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Description

Verfahren zum Betriebe von Bildspeicherröhren Zusatz zum Patent 691713 Das Hauptpatent 691 713 hat ein Betriebsverfahren für Bildspeicherröhren mit von der Speicherelektrode getrennter Photokathode zum Gegenstand, bei dem bei uriunterbrochener Belichtung der Photokathode die Beschleunigungsspannung für die Photoelektronen, die auf der Speicherelektrode ein den Helligkeitswerten des zu übertragenden Bildes entsprechendes Ladungsbild erzeugen, nur während eines Teiles der Abtastperiode eingeschaltet wird. Der Vorteil eines solchen Verfahrens besteht darin, daß schnell verlaufende Vorgänge in e_nzelne, in sich ruhende Bilder unterteilt werden können, ohne daß dabei ein mechanischer Verschluß, erforderlich ist. Die vorliegende Erfindung betrifft nun eine weitere Anwendungsmöglichkeit dieses Gedankens. Das beschriebene Verfahren ist nun nicht allein an Bildspeicherröhren mit Bildwandlerteil gebundenes läßt sich vielmehrauch bei normalen Bildspeicherröhren mit doppelseitiger Mosaikplatte anwenden, bei denen das Zugfeld für die Photoelektronen, nicht etwa wie bei Bildspeicherröhren mixt einseitigem Mosaik durch die bei der Abtastung vorhandene Raumladung vor dem Mosaik bedingt ist, sondern gänzlich unabhängig hiervon mittels einer auf hohem positivem Potential liegenden Absaugelektrode erzeugt wird. An diese Elektrode wird dann nach dem Vorbild des Hauptpatents die Saugspannung nur während i/oder auch nur 1(1o der Abtastperiodc: gelegt, so da.ß auch nur während dieses Intervalls eine Photoaufladung der doppelseitigen Bildwurfelektrode eintreten kann. Ist die Bewegung des zu übertragenden Gegenstandes während dieser kurzen Zeit zu vernachlässigen, so erhält man hierdurch ein ruhendes Bild, was sonst nur durch entsprechend kurze Belichtung der Photokathode, etwa mit Hilfe eines zusätzlichen besonderen mechanischen Verschlusses möglich wäre.Method for operating image storage tubes Addendum to patent 691713 The main patent 691 713 deals with an operating method for image storage tubes with a photocathode separated from the storage electrode, in which, if the photocathode is uninterruptedly exposed, the acceleration voltage for the photoelectrons on the storage electrode corresponds to the brightness values of the Generate image corresponding charge image, is only switched on during part of the sampling period. The advantage of such a method is that fast-moving processes can be divided into individual, self-contained images without the need for a mechanical shutter. The present invention now relates to a further possible application of this idea. The method described is not only tied to image storage tubes with an image converter part, but can also be used with normal image storage tubes with double-sided mosaic panels, in which the tensile field for the photoelectrons is not mixed, as is the case with image storage tubes, due to the space charge in front of the mosaic, as is the case with image storage tubes but is generated completely independently of this by means of a suction electrode at a high positive potential. Following the example of the main patent, the suction voltage is then applied to this electrode only during i / or only 1 (1o of the scanning periodc: so that photo-charging of the double-sided image cube electrode can only occur during this interval If the object is neglected during this short period of time, a still image is obtained, which would otherwise only be possible with a correspondingly short exposure of the photocathode, for example with the help of an additional special mechanical shutter.

Claims (1)

PATENTANSPRUCH: Anwendung der Einschaltung der Beschleunigungsspannung für die Photoelektronen nur während eines Teiles der Abtastperiode bei ununterbrochener Belichtung gemäß Hauptpatent 691 713 auf speichernde Bildzerlegerröhren mit doppelseitiger Mosaikelektrode, deren eine Seite vom zu übertragenden Bild und deren andere Seite vom Abtaststrahl beeindruckt wird. PATENT CLAIM: Application of the activation of the acceleration voltage for the photoelectrons only during part of the scanning period with uninterrupted exposure in accordance with main patent 691 713 on storing image decomposition tubes with double-sided mosaic electrodes, one side of which is impressed by the image to be transmitted and the other side by the scanning beam.
DEF83287D 1937-07-08 1937-07-08 Method for operating image storage tubes Expired DE712222C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF83287D DE712222C (en) 1937-07-08 1937-07-08 Method for operating image storage tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF83287D DE712222C (en) 1937-07-08 1937-07-08 Method for operating image storage tubes

Publications (1)

Publication Number Publication Date
DE712222C true DE712222C (en) 1941-10-15

Family

ID=7114063

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF83287D Expired DE712222C (en) 1937-07-08 1937-07-08 Method for operating image storage tubes

Country Status (1)

Country Link
DE (1) DE712222C (en)

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