DE714264C - Process for making a television picture visible - Google Patents

Process for making a television picture visible

Info

Publication number
DE714264C
DE714264C DEB157369D DEB0157369D DE714264C DE 714264 C DE714264 C DE 714264C DE B157369 D DEB157369 D DE B157369D DE B0157369 D DEB0157369 D DE B0157369D DE 714264 C DE714264 C DE 714264C
Authority
DE
Germany
Prior art keywords
grid electrodes
making
television picture
cathode ray
television
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
DEB157369D
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEB157369D priority Critical patent/DE714264C/en
Application granted granted Critical
Publication of DE714264C publication Critical patent/DE714264C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/66—Transforming electric information into light information

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Description

Verfahren zur Sichtbarmachung eines Fernsehbildes Es ist bereits vorgeschlagen worden, ein Fernsehbild m einer gasgefüllten Braunschen Röhre dadurch sichtbar zu machen, daß in Richtung der Röhrenachse zwei hintereinanderliegende Gitterelektroden vorgesehen werden, zwischen denen die Bildmodulationsspannung liegt, und daß durch den wandernden Kathodenstrahl das jeweils von ihm durchsetzte, zwischen den Gitterelektroden liegende Gasvolumen zum Leuchten angeregt wird, wobei die Helligkeit dieser Leuchterscheinung von dem augenblicklichen Wert der Bildmodulationsspannung ,abhängt.Method for making a television picture visible It has already been proposed become visible to a television picture m a gas-filled Braun tube make that two grid electrodes lying one behind the other in the direction of the tube axis be provided, between which the image modulation voltage is, and that by the wandering cathode ray that penetrated by it, between the grid electrodes Lying gas volume is excited to glow, the brightness of this luminous phenomenon on the instantaneous value of the image modulation voltage.

Gemäß der Erfindung wird vorgeschlagen, bei einer derartigen Anordnung den wandernden Kathodenstrahl selbst in an sich bekannter Weise in seiner Intensität entsprechend den Bildpunkthelligkeitswerten zu modulieren und zwischen den erwähnten hintereinanderliegenden Gitterelektroden seine konstante Spannung wirken zu lassen.According to the invention it is proposed with such an arrangement the wandering cathode ray itself in a manner known per se in its intensity to modulate according to the pixel brightness values and between the mentioned grid electrodes lying one behind the other to allow its constant voltage to act.

Dadurch wird die Einstellung der für das Sichtbarmachen der Bildpunkte an den Gitterelektrodenerforderlichen Hilfsspannung leichter, insbesondere wenn man hierfür nicht Gleichstrom, sondern einen hochfrequenten Wechselstrom benutzt. Diese hochfrequente, an die Gitterelektroden gelegte regelbare Hilfsspannung kann dem Empfänger, insbesondere wenn. es- sich um Ultrakurzwellenüb-ertragung handelt, entnommen werden. Hierbei. kann man leicht sowohl die Spannung als auch die Frequenz und Phase so einstellen, daß die Scheitelwerte der Steuerspannungen des Kathodenstrahls und der Spannung an den Gitterelektroden synchron verlaufen.This adjusts the setting for making the pixels visible the auxiliary voltage required on the grid electrodes, especially if one does not use direct current for this, but a high-frequency alternating current. This high-frequency, adjustable auxiliary voltage applied to the grid electrodes can the recipient, especially if. it is ultra-short wave transmission, can be removed. Here. one can easily see both the voltage and the frequency and adjust the phase so that the peak values of the control voltages of the cathode ray and the voltage on the grid electrodes run synchronously.

Claims (1)

PATENTANSPRÜCHE: i. Verfahren zur Sichtbarmachung eines Fernsehbildes m einer gasgefüllten Braunschen Röhre, die in Richtung der Röhrenachse hinterein.anderliegende Gitterelektroden enthält, zwischen denen das Gas durch den Kathodenstrahl zum Leuchten angeregt wird, dadurch gekennzeichnet, daß zwischen den Gitterelektroden eine konstante, jedoch einstellbare Spannung liegt und der Kathodenstrahl in seiner Intensität durch die Bildmodulationsström@e beeinflußt wird. a. Fernsehverfahren nach Anspruch i, dadurch gekennzeichnet, daß zwischen den Gitterelektroden der Röhre eine hochfrequente Hilfsspannung angelegt wird. 3. Fernsehverfahren nach Anspruch a, dadurch gekennzeichnet, daß zwischen den Gitterelektroden eine Ultrakurzwellenhochfrequenz angelegt wird, die dem Empfangsapparat entnommen wird, der zur Bildübertragung benutzt wird.PATENT CLAIMS: i. Process for making a television picture visible m a gas-filled Braun tube, one behind the other in the direction of the tube axis Contains grid electrodes, between which the gas shines through the cathode ray is excited, characterized in that between the grid electrodes a constant, however adjustable voltage lies and the cathode ray in its intensity by the image modulation currents is influenced. a. Television method according to claim i, characterized in that a high frequency between the grid electrodes of the tube Auxiliary voltage is applied. 3. Television method according to claim a, characterized in that that an ultra-short wave high frequency is applied between the grid electrodes, which is taken from the receiving apparatus that is used for image transmission.
DEB157369D 1932-09-11 1932-09-11 Process for making a television picture visible Expired DE714264C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB157369D DE714264C (en) 1932-09-11 1932-09-11 Process for making a television picture visible

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB157369D DE714264C (en) 1932-09-11 1932-09-11 Process for making a television picture visible

Publications (1)

Publication Number Publication Date
DE714264C true DE714264C (en) 1941-11-25

Family

ID=7003732

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB157369D Expired DE714264C (en) 1932-09-11 1932-09-11 Process for making a television picture visible

Country Status (1)

Country Link
DE (1) DE714264C (en)

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