DE684963C - Electric high-voltage fluorescent tubes filled with neon or neon mercury - Google Patents
Electric high-voltage fluorescent tubes filled with neon or neon mercuryInfo
- Publication number
- DE684963C DE684963C DEP76848D DEP0076848D DE684963C DE 684963 C DE684963 C DE 684963C DE P76848 D DEP76848 D DE P76848D DE P0076848 D DEP0076848 D DE P0076848D DE 684963 C DE684963 C DE 684963C
- Authority
- DE
- Germany
- Prior art keywords
- neon
- mercury
- wire
- fluorescent tubes
- tubes filled
- 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
- H01J17/00—Gas-filled discharge tubes with solid cathode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/04—Electrodes; Screens; Shields
- H01J61/06—Main electrodes
- H01J61/067—Main electrodes for low-pressure discharge lamps
- H01J61/0672—Main electrodes for low-pressure discharge lamps characterised by the construction of the electrode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
Landscapes
- Gas-Filled Discharge Tubes (AREA)
- Discharge Lamp (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Description
Elektrische Hochspannungsleuchtröhre mit Neon oder Neon-Quecksilberfüllung Im Hauptpatent 678 551 sind mit Neon oder Neon-Quecksilber von weniger als ¢ Torr Edelgasdruck gefüllte Hochspannungsleuchtröhren beschrieben, deren als Elektroden ausgebildete, nach der Entladungsbahn hin offene Draht- oder Hohlblechkörper gleichmäßig verteilte Schlitze von 0,3 bis o,7 mm Breite aufweisen, die in ihrer Gesamtheit q.o bis 6o% der ideellen Elektrodenoberfläche ausmachen.Electric high-voltage fluorescent tube with neon or neon-mercury filling The main patent 678 551 describes high-voltage fluorescent tubes filled with neon or neon-mercury of less than ¢ Torr noble gas pressure, whose wire or hollow sheet bodies, which are designed as electrodes and open towards the discharge path, are evenly distributed slots of 0.3 to 0.7 mm in width, which in their totality make up qo to 6o% of the ideal electrode surface.
Eine besonders günstige Ausführungsform der Draht- oder Blechhohlkörper ergibt sich erfindungsgemäß dadurch, daß sie aus b.ariumhaltigem Draht oder Blech bestehen. Wegen der großen freien Oberfläche ist es nämlich bei den Elektroden nach dem Hauptpatent bisher nicht möglich gewesen, einen den Kathodenfall und damit die Brennspannung der Röhre herabsetzenden überzug auf ihnen anzubringen. Ein solcher, etwa durch Bestreichen mit Bariumazid aufgebrachter überzug verliert vielmehr infolge der starken Zerstäubung der Elektroden nach wenigen Stunden schon seine Wirksamkeit. Enthält jedoch der Elektrodenwerkstoff Barium in seinem Innern, so wird gerade durch die starke Zerstäubung immer neues Barium frei gelegt, so daß die Oberfläche ständig einen Bariumbelag besitzt. Dadurch wird sowohl der Kathodenfall als auch in weiterer Folge die Gasaufzehrung noch mehr herabgesetzt.A particularly favorable embodiment of the wire or sheet metal hollow body arises according to the invention in that it is made from a.arium-containing wire or sheet metal exist. Because of the large free surface, it is after all with the electrodes the main patent has not been possible so far, a cathode case and thus the Burning voltage of the tube reducing coating to be applied to them. Such a, Rather, a coating applied by brushing with barium azide loses as a result the strong atomization of the electrodes already becomes effective after a few hours. However, if the electrode material contains barium in its interior, it is straight through the strong atomization always exposed new barium, so that the surface constantly a Possesses barium coating. This will cause both the cathode fall and subsequently the gas consumption is reduced even more.
Elektrodenkörper aus bariumhaltigem Draht sind zwar an sich bekannt, jedoch hatten der artige Elektrodenkörper nur die Ausbildung üblicher Drahtelektrodenkörper und demgemäß entweder keine Schlitze oder solche von anderen Abmessungen.Electrode bodies made of barium-containing wire are known per se, however, the electrode body like this only had the design of conventional wire electrode bodies and accordingly either no slots or those of different dimensions.
Besteht die Elektroale aus einem Drahtgeflecht oder einer Drahtwendel, so hat es sich als zweckmäßig erwiesen; die notwendigen längs verlaufenden Versteifungsstreben nicht, wie in dem Hauptpatent angegeben, außen am Elektrodenkörp-er, sondern in dessen Innern anzubringen. Die Elektrödenoberfläche kann hierdurch bei unverändertem Polgefäßdurchmesser größer gewählt werden, was die Möglichkeit gibt, die Länge des Elektrodenkörpers und: damit des Polgefäßes zu vermindern.If the electrical system consists of a wire mesh or a wire coil, so it has proven expedient; the necessary longitudinal stiffening struts not, as stated in the main patent, on the outside of the electrode body, but in to attach its interior. As a result, the electrode surface can remain unchanged Pole vessel diameter can be selected to be larger, which gives the possibility of reducing the length of the Electrode body and: thus the pole vessel to reduce.
Elektroden nach der Erfindung können mit Vorteil auch bei Röhren angewendet werden, deren Fülldruck mehr als ¢ Torr, etwa zwischen 4 und io Torr, beträgt.Electrodes according to the invention can also be used with advantage in tubes whose filling pressure is more than ¢ Torr, for example between 4 and 10 Torr.
Claims (3)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP76219D DE678551C (en) | 1937-11-11 | 1937-11-11 | Electric high-voltage light tubes with neon filling or neon mercury filling |
DEP76836D DE685852C (en) | 1937-11-11 | 1938-02-24 | Electric high voltage fluorescent tubes |
DEP76848D DE684963C (en) | 1937-11-11 | 1938-02-25 | Electric high-voltage fluorescent tubes filled with neon or neon mercury |
US238866A US2152985A (en) | 1937-11-11 | 1938-11-04 | Electric gaseous discharge device |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP76219D DE678551C (en) | 1937-11-11 | 1937-11-11 | Electric high-voltage light tubes with neon filling or neon mercury filling |
GB3210337A GB500390A (en) | 1937-11-22 | 1937-11-22 | Improvements in electrode construction for electric discharge lamps |
DEP76836D DE685852C (en) | 1937-11-11 | 1938-02-24 | Electric high voltage fluorescent tubes |
DEP76848D DE684963C (en) | 1937-11-11 | 1938-02-25 | Electric high-voltage fluorescent tubes filled with neon or neon mercury |
Publications (1)
Publication Number | Publication Date |
---|---|
DE684963C true DE684963C (en) | 1939-12-08 |
Family
ID=60387752
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEP76219D Expired DE678551C (en) | 1937-11-11 | 1937-11-11 | Electric high-voltage light tubes with neon filling or neon mercury filling |
DEP76836D Expired DE685852C (en) | 1937-11-11 | 1938-02-24 | Electric high voltage fluorescent tubes |
DEP76848D Expired DE684963C (en) | 1937-11-11 | 1938-02-25 | Electric high-voltage fluorescent tubes filled with neon or neon mercury |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEP76219D Expired DE678551C (en) | 1937-11-11 | 1937-11-11 | Electric high-voltage light tubes with neon filling or neon mercury filling |
DEP76836D Expired DE685852C (en) | 1937-11-11 | 1938-02-24 | Electric high voltage fluorescent tubes |
Country Status (2)
Country | Link |
---|---|
US (1) | US2152985A (en) |
DE (3) | DE678551C (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE931970C (en) * | 1950-10-21 | 1955-08-22 | Max Boie | Space-saving electrode for light tubes |
-
1937
- 1937-11-11 DE DEP76219D patent/DE678551C/en not_active Expired
-
1938
- 1938-02-24 DE DEP76836D patent/DE685852C/en not_active Expired
- 1938-02-25 DE DEP76848D patent/DE684963C/en not_active Expired
- 1938-11-04 US US238866A patent/US2152985A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE685852C (en) | 1939-12-28 |
DE678551C (en) | 1939-07-18 |
US2152985A (en) | 1939-04-04 |
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