DE724394C - Double-walled metal vapor discharge lamp, in particular high-pressure mercury lamp - Google Patents
Double-walled metal vapor discharge lamp, in particular high-pressure mercury lampInfo
- Publication number
- DE724394C DE724394C DEP74556D DEP0074556D DE724394C DE 724394 C DE724394 C DE 724394C DE P74556 D DEP74556 D DE P74556D DE P0074556 D DEP0074556 D DE P0074556D DE 724394 C DE724394 C DE 724394C
- Authority
- DE
- Germany
- Prior art keywords
- metal vapor
- vapor discharge
- double
- lamp
- discharge lamp
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
- C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Description
Doppelwandige Metalldampfentladungslampe, insbesondere Quecksilberhochdrucklampe Zusatz zum Patent 721 706 In dem Hauptpatent 721 7o6 ist eine doppelwandige Metalldampfentladungslampe, insbesondere Quecksilberhochdruckdampflampe, mit Innengefäß aus Quarzglas .oder quarzähnlichem Glase und im luftdicht abgeschlossenen Raume zwischen Innengefäß und Außengefäß untergebrachter Luminophorschicht beschrieben, bei der zur Verhinderung einer Abnahme des Lumineszenzlichtes der die Luminophorschicht enthaltende Gefäßzwischenraum mit Sauerstoff oder einem sauerstoffhaltigen Gase gefüllt ist.Double-walled metal vapor discharge lamp, in particular high pressure mercury lamp additive to Patent 721 706 to the main patent 721 7o6 a double-walled metal vapor discharge lamp, in particular high-pressure mercury vapor lamp, .or with inner vessel made of quartz glass quartz-like glass and sealed in the airtight space between the inner vessel and outer vessel housed luminophor is described in which to prevent a decrease in of the luminescent light, the vascular space containing the luminophore layer is filled with oxygen or an oxygen-containing gas.
Eine wesentliche Verbesserung derart beschaffener, doppelwandiger Metalldampfentladungslampen wird erhalten, wenn erfindungsgemäß die Füllung des Gefäßzwischenraumes außer aus Sauerstoff oder aus einem sauerstoffhaltigen Gase noch aus Helium besteht. Zweckmäßig wird hierbei Helium dem Sauerstoff .oder dem sauerstoffhaltigen Gase im Verhältnis i : i beigemischt. Durch die Beigabe des eine hohe Wärmeleitfähigkeit aufweisenden und demgemäß Wärme vom Innengefäß stark ableitenden Heliums wird es möglich, die Lampe ohne Gefahr einer schädlichen Überhitzung des Innengefäßes weit höher zu belasten als in dem Falle, wo der Gefäßzwischenraum nur mit Sauerstoff oder seinem sauerstoffhaltigen Gase gefüllt oder auch sogar, wie meist üblich, weitgehend entlüftet ist. Durch den Heliumzusatz wird andererseits, wie festgestellt wurde, die günstige Wirkung des Sauerstoffes auf den Luminophor nicht behindert, da Helium sich gegenüber letzterem vollkommen indifferent verhält und mit den im Laufe der Brenndauer von den Giefäßwänden abgegebenen Restgasen keime Verbindungen eingeht. Die Größe der durch den Heliumzusatz ermöglichten Röhrenbelastungssteigerung richtet sich nach dem Anteil des Heliumzusatzes und dem Druck der Füllung. Eine Steigerung der Röhrenbelastung um etwa ein Drittel wird, wie durchgeführte Messungen ergeben haben, ohne schädliche Überhitzung des Innengefäßes Herreicht, wenn eine aus gleichen Anteilen von Sauerstoff und Helium bestehende Zwischenraumfüllung untrer einem Druck . von etwa 2o mm Quecksilbersäule steht.A significant improvement in double-walled ones of this type Metal vapor discharge lamps are obtained when, according to the invention, the filling of the Vascular space except from oxygen or from an oxygen-containing gas still consists of helium. Helium is useful to oxygen. Or to mixed with oxygen-containing gases in the ratio i: i. By adding one having high thermal conductivity and accordingly strongly dissipating heat from the inner vessel Helium will make it possible to run the lamp without the risk of harmful overheating of the lamp Load the inner vessel much higher than in the case where the space between the vessels is only filled with oxygen or its oxygen-containing gases or even like usually common, is largely vented. On the other hand, the addition of helium as has been established, the beneficial effect of oxygen on the luminophore not hindered, since helium is completely indifferent to the latter and germs with the residual gases given off by the walls of the pouring vessel during the course of the burning period Connections. The size of the made possible by the addition of helium The increase in the tube load depends on the proportion of helium added and the Pressure of the filling. An increase in the tube load by about a third will, as the measurements carried out have shown, without damaging overheating of the inner vessel Sufficient if one consists of equal proportions of oxygen and helium Space filling under one pressure. of about 20 mm of mercury.
Um die durch den Heliumzusatz gesteigerte Gefahr eines elektrischen Überschlages zwischen in dem Gefäßzwischenraum untergebrachten stromführenden Teilen, insbesondere Stromzufübrungsdrahten, zu verhindern, können die stromführenden Teile mit desaktivierenden überzügen, z. B. mit Carbidschichten, versehen werden.About the increased risk of electrical damage caused by the addition of helium Flashover between current-carrying parts accommodated in the space between the vessels, in particular power supply wires, can prevent the current-carrying parts with deactivating coatings, e.g. B. with carbide layers are provided.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP74556D DE724394C (en) | 1937-01-28 | 1937-01-28 | Double-walled metal vapor discharge lamp, in particular high-pressure mercury lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP74556D DE724394C (en) | 1937-01-28 | 1937-01-28 | Double-walled metal vapor discharge lamp, in particular high-pressure mercury lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
DE724394C true DE724394C (en) | 1942-08-25 |
Family
ID=7392572
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEP74556D Expired DE724394C (en) | 1937-01-28 | 1937-01-28 | Double-walled metal vapor discharge lamp, in particular high-pressure mercury lamp |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE724394C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1018547B (en) * | 1954-01-05 | 1957-10-31 | British Thomson Houston Co Ltd | Electric high pressure mercury vapor discharge lamp |
DE969346C (en) * | 1948-03-27 | 1958-06-19 | Gen Electric | Electric high pressure discharge lamp |
DE1123841B (en) * | 1959-09-08 | 1962-02-15 | Bodenseewerk Perkin Elmer Co | Radiation source for infrared spectrophotometer |
-
1937
- 1937-01-28 DE DEP74556D patent/DE724394C/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE969346C (en) * | 1948-03-27 | 1958-06-19 | Gen Electric | Electric high pressure discharge lamp |
DE1018547B (en) * | 1954-01-05 | 1957-10-31 | British Thomson Houston Co Ltd | Electric high pressure mercury vapor discharge lamp |
DE1123841B (en) * | 1959-09-08 | 1962-02-15 | Bodenseewerk Perkin Elmer Co | Radiation source for infrared spectrophotometer |
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