DE722349C - Electric discharge lamp or fluorescent tube filled with noble gases and mercury and a luminophore layer excited by the mercury radiation - Google Patents

Electric discharge lamp or fluorescent tube filled with noble gases and mercury and a luminophore layer excited by the mercury radiation

Info

Publication number
DE722349C
DE722349C DEP80997D DEP0080997D DE722349C DE 722349 C DE722349 C DE 722349C DE P80997 D DEP80997 D DE P80997D DE P0080997 D DEP0080997 D DE P0080997D DE 722349 C DE722349 C DE 722349C
Authority
DE
Germany
Prior art keywords
mercury
discharge lamp
fluorescent tube
electric discharge
cadmium
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
DEP80997D
Other languages
German (de)
Inventor
Norman Leslie Harris
John Harold Shaylor
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Application granted granted Critical
Publication of DE722349C publication Critical patent/DE722349C/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/67Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing refractory metals
    • C09K11/68Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing refractory metals containing chromium, molybdenum or tungsten
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/70Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing phosphorus
    • C09K11/72Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing phosphorus also containing halogen, e.g. halophosphates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Luminescent Compositions (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Description

Elektrische Entladungslampe oder Leuchtröhre mit einer Füllung aus Edelgasen und Quecksilber und einer durch die Quecksilberstrahlung angeregten Luminophorschicht Zusatz zum Zusatzpatent 699 o96 Die im Zusatzpatent 699 o96 beschriebene elektrische Leuchtröhre besitzt eine Lumino# phorschicht aus mit Mangan aktiviertem Cadmiumphosphat, dem zur Erhöhung der Lichtausbeute Cadmiumchlorid zugesetzt ist, so daß ein CadmiLUnchlorphosphat entsteht. Die mit einer solchen Luminophorschicht ausgerüstete Quersilberdampfientladungslampe oder -röhre besitzt eine rötlichweiße Lichtfarbe. Um dem häufig .aüftretenden Wunsch, die Lichtfarbe dem natürlichen Tageslicht anzugleichen, zu entsprechen, ist nach einem älteren Zusatzpatent 701 087 bereits vorgeschlagen worden, das mit Mangan aktivierte Cadmiumchlorphosph.at mit Magnesium- und/oder Zinkwolframat zu mischen.Electric discharge lamp or fluorescent tube with a filling of noble gases and mercury and a luminophore layer excited by the mercury radiation so that a CadmiLUnchlorphosphat is formed. The transverse silver vapor discharge lamp or tube equipped with such a luminophore layer has a reddish-white light color. In order to meet the frequently emerging desire to match the light color to natural daylight, an older additional patent 701 087 has already proposed to mix the manganese-activated Cadmiumchlorphosph.at with magnesium and / or zinc tungstate.

Nun ist es zwar mit diesem Luminophorgemisch gelungen, die Lichtfarbe der Entladungslampe öder -röhre dem bläulichen Nordhimmel anzupassen. Das natürliche Tageslicht ist aber bekanntlich in seiner Farbwirkung noch erheblichen Schwankungen unterworfen, und es tritt häufig die Forderung auf, ein künstliches. Tageslicht zu erzeugen, das etwa dem bedeckten Himmel oder der unmittelbaren Sonnenstrahlung entspricht. Mit den genannten, beiden Leuchtstoffen lassen sich solche Lichtfarben jedoch nicht erzielen, wie man auch das Mischungsverhältnis wählen möge.Now, with this mixture of luminophores, the light color has been achieved to adapt the discharge lamp to the bluish northern sky. The natural one However, as is well known, daylight still fluctuates considerably in its color effect subject, and there is often a requirement for an artificial. daylight to generate, for example, the overcast sky or the direct solar radiation is equivalent to. With the two phosphors mentioned can be However, such light colors cannot be achieved as one also selects the mixing ratio may.

Es wurde festgestellt, daß die rötlichweiße Lichtfarbe der mit Cadmiumchlorphosphat ausgestatteten Entladungslampen. oder Leuchtröhren nach dem Zusatzpatent 699 o96 in beliebiger Weise den verschiedenen Arten des natürlichen Tageslichtes angenähert werden kann, wenn denn mit Mangan aktivierten Cadmiumchlorphosphat sowohl Magnesiumwolframat als auch Cadmiumborat zugesetzt sind, und zwar derart, daß der Anteil des Cadmiumchlorphosphats am fertigen Luminophorgemisch io bis ¢o%, der Anteil des Magnesiumwolframats 3o bis 75% und der Anteil des Cadmiumborats io bis 5o% beträgt.It was found that the reddish white light color of that with cadmium chlorophosphate equipped discharge lamps. or fluorescent tubes according to the additional patent 699 o96 approximated in any way the different types of natural daylight can be, if both cadmium chlorophosphate activated with manganese and magnesium tungstate and cadmium borate are added, in such a way that the proportion of cadmium chlorophosphate on the finished luminophore mixture io to ¢ o%, the proportion of magnesium tungstate 3o up to 75% and the proportion of cadmium borate is 10 to 5o%.

Durch geeignete: Wahl der genauien'Prozentsätze innerhalb der angegebenen Bereiche können die verschiedensten Wünsche an eine mehr oder weniger gute Anpassung an das natürliche Tageslicht erfüllt werden. So besitzt eine Quecksilberdampfentladungsröhre mit einem Luminophorgemisch aus 250,ß manganaktiviertem Cadmiumchlorphosphat, 38% Magnesiumwolframat und 370o Cadmiumborat eine weiße Lichtfarbe mit etwas rötlichem Stich. Wählt man das Mischungsverhältnis 2 i % manganaktiviertes Cadmium-Chlorphosphat, 6 i % Magnesiumwolframat und ,8% Cadmiumborat, so besitzt die Lichtfarbe der Entladungsröhre eine sehr gute Annäherung an das ummittelbare Sonnenlicht. Bei weiterer Steigerung des Blaugehalts, etwa-in folgender Mischung: 180/6 manganaktiviertes Cadmium.chlorphosphat, 710/0 Magnesiumwolframat und I I % Cadmiumborat, nähert sich die Lichtfarbe der des blauen Nordlümmels, ähnlich der Lichtfarbe von Entladungsröhren mit Kohlensäurefüllung. Naturgemäß ist die Lichtausbeute einer Entladungslampe oder Leuchtröhre mit dem ierfindungsgemäßen Leuchtstoffgemisch vielfach höher als die Lichtausbeute der Kohlensäureentladuitg.Through suitable: choice of the exact percentages within the specified ranges, the most varied of wishes for a more or less good adaptation to natural daylight can be met. For example, a mercury vapor discharge tube with a luminophore mixture of 250 β manganese-activated cadmium chlorophosphate, 38% magnesium tungstate and 370 ° cadmium borate has a white light color with a slightly reddish tinge. If the mixing ratio chosen is 2% manganese-activated cadmium chlorophosphate, 6 % magnesium tungstate and 8% cadmium borate, the light color of the discharge tube closely approximates the direct sunlight. With a further increase in the blue content, roughly in the following mixture: 180/6 manganese-activated cadmium chlorophosphate, 710/0 magnesium tungstate and II% cadmium borate, the light color approaches that of the blue northern lout, similar to the light color of discharge tubes filled with carbonic acid. Naturally, the light yield of a discharge lamp or fluorescent tube with the phosphor mixture according to the invention is many times higher than the light yield of the carbon dioxide discharge.

Claims (1)

PATENTANSPRUCH: Elektrische Entladungslampe oder Leuchtröhre mit einer Füllung aus Edelgasen und Quecksilber und einer durch die Quecksilberstrahlung angeregten Luminophorschicht nachZusatzpatent699o96, dadurch gekennzeichnet, daß dem mit Mangan aktivierten Cadmiumchlorphosphat sowohl Magnesiumwolframat als ;auch Cadmiumborat zugesetzt sind, und zwar derart, daß der Anteil des Cadmiumchlorphosphats am fertigen Luminophorgemisch io bis 4o%, der Anteil des Magnesiumwolframats 3o bis 75010 und der Anteil des Cadmiumborats io bis 500;'o beträgt.PATENT CLAIM: Electric discharge lamp or fluorescent tube with a filling of noble gases and mercury and a luminophore layer excited by the mercury radiation according to additional patent 699o96, characterized in that the cadmium chlorophosphate activated with manganese both magnesium tungstate and cadmium borate are added to the cadmium phosphate in such a way finished luminophore mixture 10 to 40%, the proportion of magnesium tungstate 3o to 75010 and the proportion of cadmium borate 10 to 500; 'o.
DEP80997D 1939-07-19 1940-07-13 Electric discharge lamp or fluorescent tube filled with noble gases and mercury and a luminophore layer excited by the mercury radiation Expired DE722349C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB722349X 1939-07-19

Publications (1)

Publication Number Publication Date
DE722349C true DE722349C (en) 1942-07-08

Family

ID=10495046

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP80997D Expired DE722349C (en) 1939-07-19 1940-07-13 Electric discharge lamp or fluorescent tube filled with noble gases and mercury and a luminophore layer excited by the mercury radiation

Country Status (1)

Country Link
DE (1) DE722349C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE903011C (en) * 1949-09-22 1954-02-01 Patra Patent Treuhand Process for the production of a coating of fine-grained powder materials on the glass vessels of electric lamps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE903011C (en) * 1949-09-22 1954-02-01 Patra Patent Treuhand Process for the production of a coating of fine-grained powder materials on the glass vessels of electric lamps

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