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DE858578C - Fluorescent mixture for fluorescent tubes - Google Patents

Fluorescent mixture for fluorescent tubes

Info

Publication number
DE858578C
DE858578C DEA13195A DEA0013195A DE858578C DE 858578 C DE858578 C DE 858578C DE A13195 A DEA13195 A DE A13195A DE A0013195 A DEA0013195 A DE A0013195A DE 858578 C DE858578 C DE 858578C
Authority
DE
Germany
Prior art keywords
fluorescent
activated
manganese
mixture
tubes
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
DEA13195A
Other languages
German (de)
Inventor
Wilhelm Dipl-Chem Weber
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.)
Auergesellschaft GmbH
Original Assignee
Auergesellschaft GmbH
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 Auergesellschaft GmbH filed Critical Auergesellschaft GmbH
Priority to DEA13195A priority Critical patent/DE858578C/en
Application granted granted Critical
Publication of DE858578C publication Critical patent/DE858578C/en
Expired legal-status Critical Current

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
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/74—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing arsenic, antimony or bismuth
    • C09K11/75—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing arsenic, antimony or bismuth containing antimony
    • C09K11/76—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing arsenic, antimony or bismuth containing antimony also containing phosphorus and halogen, e.g. halophosphates
    • 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
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/66—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing germanium, tin or lead
    • C09K11/666—Aluminates; Silicates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Luminescent Compositions (AREA)

Description

Leuchtstoffinischung für Leuchtröhren Die Erfindung betrifft Leuchtstoffmischungen für Leuchtröhren, die ein dem Tageslicht ähnliches Licht ausstrahlen. Zu diesen Mischungen werden bisher folgende Komponenten verwendet: das mit Mangan aktivierte Zinksilicat für die Grünstrahlung, das mit Mangan aktivierte Cadmiumsilicat für die Rotstrahlung und das Magnesiumwolfram.at für die Blaustrahlung.Phosphor Mixture for Tubes The invention relates to phosphor mixtures for fluorescent tubes that emit light similar to daylight. To this Mixtures have so far used the following components: the activated with manganese Zinc silicate for green radiation, cadmium silicate activated with manganese for the red radiation and the Magnesiumwolfram.at for the blue radiation.

Statt des im Rot strahlenden Cadmiumsilicates wird auch mit Mangan aktiviertes Zinkbervlliumsilicat zur Anwendung gebracht.Instead of the red shining cadmium silicate, manganese is also used activated zinc sulphate applied.

Die bisher verwendeten Rot- und Blaukomponeliten sind mit zahlreichen Nachteilen behaftet. Das obengenannte, mit Mangan aktivierte Cadmiumsilicat erzeugt im Rohr eine schlechte Lichtausbeute und ist verhältnismäßig wenig stabil. Diese Eigenschaften führen dazu, daß die Lichtintensität bereits nach 20oo Brennstunden um 30 bis 401/o abnimmt. Das Zinkberylliumsilicat ist zwar stabiler, ist aber wegen der Giftigkeit des in ihm enthaltenen Berylliums nur mit großen Vorh sichtsmaßnahmen zu verarbeiten.The red and blue components used so far have numerous disadvantages. The above-mentioned cadmium silicate activated with manganese produces a poor light yield in the tube and is relatively unstable. These properties mean that the light intensity decreases by 30 to 401 / o after 20oo burning hours. The zinc beryllium silicate is more stable, but because of the toxicity of the beryllium it contains, it can only be processed with great precautionary measures.

Das Magnesiumwolframat ist gegen reduzierende Gase und Stoffe, wie z. B. verschiedene Bindemittel, sehr empfindlich und wird dadurch schnell zu farbigen niedrigeren Wolframoxyden reduziert, was zu Fleckenbildung und Verminderung der Lichtausbeute führt.The magnesium tungstate is against reducing gases and substances such as z. B. different binders, very sensitive and quickly becomes colored lower tungsten oxides, leading to staining and diminishing of the Luminous efficiency leads.

Die geschilderten Mängel werden bei den neuen Leuchtstoffmischungen vermieden, bei denen gemäß der Erfindung die Rotkomponente aus einem mit Blei und Mangan aktivierten Caleiumsilicat, die Grünkomponente aus mit Mangan aktiviertem Zinksilicat und die Blaukomponente aus mit Antimon aktiviertem Calciumhalophosphat besteht. je nach dem gewählten Mischungsverhältnis kann man dem von der Mischung ausgestrahlten Licht die gewünschten Tönungen erteilen.The deficiencies outlined are evident in the case of the new phosphor mixtures avoided in which, according to the invention, the red component from a lead and Manganese activated caleium silicate, the green component of activated with manganese Zinc silicate and the blue component of calcium halophosphate activated with antimony consists. depending on the chosen mixing ratio you can to the the light emitted by the mixture to give the desired tints.

Claims (1)

PATENTANSPRUCH: Leuchtstoffmischung für Leuchtröhren, die ein dem Tageslicht ähnliches Licht ausstrahlen und die aus Rot, Blau und Grün emittierenden Komponenten besteht, dadurch gekennzeichnet, daß die Rotkomponente aus einem mit Blei und Mangan aktivierten Caleiumsilicat, die Grünkomponente aus mit Mangan aktiviertem Zinksilicat und die Blaukomponente aus mit Antimon aktiviertem- Calciumhalophosphat besteht. PATENT CLAIM: Fluorescent mixture for fluorescent tubes which emit a light similar to daylight and which consists of red, blue and green emitting components, characterized in that the red component consists of a calcium silicate activated with lead and manganese, the green component consists of zinc silicate activated with manganese and the blue component consists of calcium halophosphate activated with antimony.
DEA13195A 1951-04-15 1951-04-15 Fluorescent mixture for fluorescent tubes Expired DE858578C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA13195A DE858578C (en) 1951-04-15 1951-04-15 Fluorescent mixture for fluorescent tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA13195A DE858578C (en) 1951-04-15 1951-04-15 Fluorescent mixture for fluorescent tubes

Publications (1)

Publication Number Publication Date
DE858578C true DE858578C (en) 1952-12-08

Family

ID=6922762

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA13195A Expired DE858578C (en) 1951-04-15 1951-04-15 Fluorescent mixture for fluorescent tubes

Country Status (1)

Country Link
DE (1) DE858578C (en)

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