CH207455A - Electric lamp. - Google Patents
Electric lamp.Info
- Publication number
- CH207455A CH207455A CH207455DA CH207455A CH 207455 A CH207455 A CH 207455A CH 207455D A CH207455D A CH 207455DA CH 207455 A CH207455 A CH 207455A
- Authority
- CH
- Switzerland
- Prior art keywords
- electric lamp
- tube
- evaporation
- lamp according
- ignition
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/96—Lamps with light-emitting discharge path and separately-heated incandescent body within a common envelope, e.g. for simulating daylight
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
- H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent
Landscapes
- Discharge Lamps And Accessories Thereof (AREA)
Description
Z-usatzpatent zum Hauptpatent Nr. 192442. Elektrische Lainpe. Gegenstand vorliegender Erfindung ist eine elektrische Lampe gemäss dem Patent anspruch des Hauptpatentes mit einer Ver- dampfungsleuchtröhre und einem zu dieser parallel geschalteten Glühfaden. Die zusätz liche Erfindung besteht darin, dass die Ver- dampfungsleuchtröhre von Zündgasen frei ist.
Die bisher verwendeten Verdampfungs- leuchtröhren benötigten zur Einleitung der Zündung und Herabsetzung der Zündspan. nung spezielle Gase, vorzugsweise Edelgase, wie z. B. Argon und Neon. Diese Gase waren dazu da, die Entladungsstrecke für eine ent sprechende Zündspannung leitfähig zu ge stalten, weil der durch die Gasentladungs- temperatur erzeugte Dampf des Metallboden- körpers ja erst leitfähig wird, wenn er den entsprechenden Sättigungsdruck erreicht hat. Dieser wiederum kann nur erreicht werden, wenn das Rohr die dafür notwendige Tem peratur besitzt.
Diese kostspielige und langwierige<B>Ab-</B> füllung von Edelgasen ist bei der erfindungs gemässen Röhre überflüssig, weil der in Pa rallelschaltung zu dieser Verdampfungsleucht- röhre liegende Glühfaden eine solche Wärme ausstrahlt, dass der Metallbodenkörper, wie z. B. Rg, Na, sofort so verdampft wird, dass bereits zur Zündung die Leitfähigkeit der Röhre über die Moleküle des Metalldampfes hergestellt wird.
Es genügt also bei der 'er findungsgemässen Lampe, das Rohr nur zu evakuieren und den Bodenkörper einzubrin gen. Zweckmässigerweise besitzt<B>-</B> dabei die Verdampfungsleuchtröhre ausser dem ver- dampfbaren Metallbodenkörper keine weitere Füllung.
Additional patent to main patent no. 192442. Electric Lainpe. The present invention relates to an electric lamp according to the patent claim of the main patent with an evaporation tube and a filament connected in parallel to this. The additional invention is that the evaporation tube is free of ignition gases.
The previously used evaporation tubes were required to initiate the ignition and reduce the ignition voltage. tion special gases, preferably noble gases, such as. B. argon and neon. These gases were there to make the discharge path conductive for a corresponding ignition voltage, because the vapor of the metal floor body generated by the gas discharge temperature only becomes conductive when it has reached the corresponding saturation pressure. This, in turn, can only be achieved if the pipe has the required temperature.
This costly and lengthy <B> Ab- </B> filling of noble gases is superfluous with the tube according to the invention, because the filament in parallel to this evaporation tube radiates such heat that the metal bottom body, such. B. Rg, Na, is immediately evaporated in such a way that the conductivity of the tube is established via the molecules of the metal vapor at the time of ignition.
In the case of the lamp according to the invention, it is therefore sufficient only to evacuate the tube and to bring in the bottom body. Expediently, the evaporation tube has no further filling apart from the vaporizable metal bottom body.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH192442T | 1937-02-02 | ||
CH207455T | 1938-11-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH207455A true CH207455A (en) | 1939-10-31 |
Family
ID=25722279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH207455D CH207455A (en) | 1937-02-02 | 1938-11-12 | Electric lamp. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH207455A (en) |
-
1938
- 1938-11-12 CH CH207455D patent/CH207455A/en unknown
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