DE365901C - Photoelectric cell with increased photoelectric efficiency - Google Patents
Photoelectric cell with increased photoelectric efficiencyInfo
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J40/00—Photoelectric discharge tubes not involving the ionisation of a gas
- H01J40/02—Details
- H01J40/04—Electrodes
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)
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)
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 |
-
0
- DE DEV15225D patent/DE365901C/en not_active Expired
Cited By (1)
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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