DE365901C - Photoelectric cell with increased photoelectric efficiency - Google Patents

Photoelectric cell with increased photoelectric efficiency

Info

Publication number
DE365901C
DE365901C DEV15225D DEV0015225D DE365901C DE 365901 C DE365901 C DE 365901C DE V15225 D DEV15225 D DE V15225D DE V0015225 D DEV0015225 D DE V0015225D DE 365901 C DE365901 C DE 365901C
Authority
DE
Germany
Prior art keywords
photoelectric
increased
cell
efficiency
photoelectric cell
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
DEV15225D
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
Publication date
Priority to DEV15225D priority Critical patent/DE365901C/en
Application granted granted Critical
Publication of DE365901C publication Critical patent/DE365901C/en
Expired legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J40/00Photoelectric discharge tubes not involving the ionisation of a gas
    • H01J40/02Details
    • H01J40/04Electrodes

Landscapes

  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Description

Die Erfindung besteht in einer lichtempfindlichen Alfcalimetallzelle, wie sie für die Zwecke des sprechenden Films und des trägheitslosen Phonographen benutzt werden kann, und bezweckt die Steigerung ihrer Empfindlichkeit, die bei der Umsetzung der Lichtschwankungen in elektrische von wesentlicher Bedeutung ist.The invention consists in a photosensitive alfcalimetallic cell as used for the purposes of talking film and the inertia-less phonograph are used can, and aims to increase their sensitivity, which in the implementation of the Light fluctuations in electrical is essential.

Es ist aus Versuchen von Regener undIt is from experiments by Regener and

ίο anderen bekannt, daß es gelingt, d'en Ionisationseffekt eines einzigen elektrischen Elementarquantums so weit zu steigern, daß er meßbar wird, und zwar erreicht man millionenfache A^erstärkungen. Es muß dazu das ionisierende Teilchen das sehr starke Feld einer entsprechend geladenen Spitze (je nach der Ladung des Teilchens verschieden) durchlaufen. Bei passend gewählter Gasart, entsprechendem Gasdruck und geeigneter Spannung erfolgt dann eine derartige Verstärkung der ionisierenden Wirkung.ίο known to others that it succeeds d'en ionization effect to increase a single electrical elementary quantum so far that it becomes measurable, and indeed one achieves a millionfold amplification. It has to be the ionizing particle the very strong field of a correspondingly charged tip (depending on the charge of the particle different). With a suitably selected gas type, the same Gas pressure and a suitable voltage then result in such an intensification of the ionizing effect.

Nach der Erfindung wird daher die Zelle gemäß Ausführungsbeispiel mit einer mit mehreren nadelscharf en Spitzen S versehenen Anödet ausgerüstet. Die Zelle wird mit Edelgasen (z. B. Argon, Helium) oder Stickstoff gefüllt, der Gasdruck so gewählt, daß ein Maximum des Effektes eintritt, und eine positive Spannung von mehreren hundert Volt an die Spitzenanode 6" gelegt. Die Kathode K ist negativ geladen. Der Abstand ist entsprechend der Größe des Gasdruckes so zu wählen, daß die freie Weglänge der von dem auf K auffallenden Licht emittierten Elektronen die volle Ausnutzung der Elektronen gestattet, also bei zweckmäßig benutzten höheren Drucken ziemlich klein. Durch die beschriebene Wirkung der Spitzenanode erfolgt die gewünschte Verstärkung des vorhandenen Elektronenstromes. Es ist noch zu bemerken, daß die Auswahl der Füllgase unter dem Gesichtspunkte erfolgt, daß ihre elektrochemischen Eigenschaften eine Ionisationswirkung vom richtigen Vorzeichen gestatten.According to the invention, the cell according to the exemplary embodiment is therefore equipped with an anode provided with a plurality of needle-sharp points S. The cell is filled with noble gases (e.g. argon, helium) or nitrogen, the gas pressure is selected so that a maximum of the effect occurs, and a positive voltage of several hundred volts is applied to the tip anode 6 ". The cathode K is negative The distance is to be chosen according to the magnitude of the gas pressure so that the free path length of the electrons emitted by the light incident on K allows the electrons to be fully utilized, i.e. rather small at higher pressures used for the purpose It should also be noted that the filling gases are selected from the point of view that their electrochemical properties permit an ionization effect of the correct sign.

Claims (1)

Patent-Anspruch:Patent claim: Lichtelektrische Zelle mit erhöhter photoelektrischer Wirksamkeit, dadurch gekennzeichnet, daß zwecks Verstärkung des primären lichtelektrischen Elektronenstromes eine mit Spitzen versehene Anode in einer Edelgas- oder Stidkstorrullung benutzt wird.Photoelectric cell with increased photoelectric effectiveness, thereby characterized in that for the purpose of amplifying the primary photoelectric electron current a pointed anode in a noble gas or Stidkstorrullung is used. Hierzu 1 Blatt Zeichnungen.'For this 1 sheet of drawings. '
DEV15225D Photoelectric cell with increased photoelectric efficiency Expired DE365901C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV15225D DE365901C (en) Photoelectric cell with increased photoelectric efficiency

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV15225D DE365901C (en) Photoelectric cell with increased photoelectric efficiency

Publications (1)

Publication Number Publication Date
DE365901C true DE365901C (en) 1922-12-23

Family

ID=7574922

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV15225D Expired DE365901C (en) Photoelectric cell with increased photoelectric efficiency

Country Status (1)

Country Link
DE (1) DE365901C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE940666C (en) * 1948-12-07 1956-03-22 Electronique Moderne Sarl L Circuit for operating photoelectric cells

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE940666C (en) * 1948-12-07 1956-03-22 Electronique Moderne Sarl L Circuit for operating photoelectric cells

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