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DE640929C - Luminescent screen in discharge tubes, especially Braun tubes - Google Patents

Luminescent screen in discharge tubes, especially Braun tubes

Info

Publication number
DE640929C
DE640929C DET39350D DET0039350D DE640929C DE 640929 C DE640929 C DE 640929C DE T39350 D DET39350 D DE T39350D DE T0039350 D DET0039350 D DE T0039350D DE 640929 C DE640929 C DE 640929C
Authority
DE
Germany
Prior art keywords
tubes
luminescent screen
braun
zinc
discharge 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
DET39350D
Other languages
German (de)
Inventor
Dr Fritz Michelssen
Dr Arthur Schleede
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.)
Telefunken AG
Original Assignee
Telefunken AG
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 Telefunken AG filed Critical Telefunken AG
Priority to DET39350D priority Critical patent/DE640929C/en
Application granted granted Critical
Publication of DE640929C publication Critical patent/DE640929C/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
    • C09K11/56—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing sulfur
    • C09K11/562—Chalcogenides
    • C09K11/565—Chalcogenides with zinc cadmium

Landscapes

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

Description

Lumineszenzschirm in Entladungsröhren, insbesondere Braunschen Röhren Im Hauptpatent 622 302 ist ein Lunvneszenzschirm in Entladungsröhren geschützt, dessen Leuchtmasse aus Zinksulfid besteht, dessen Reinigung so weit getrieben wird, daß ein kräftig hellblau leuchtendes, trägheitsfrei arbeitendes Präparat entsteht. Die vorliegende Erfindung bezieht sich auf einen'Lumineszenzschirm; dessen Leuchtmasse aus dem neugewonnenen. Zinksulfid und geeigneten Zusätzen zu diesem. Präparat besteht, um Präparate zu erhalten, -die sieh zur Umwandlung elektrischer Energie, insbesondere von Kathodenstrahlenenergie, in Licht beliebiger Farbe bei hoher Lichtausbeute eignen. Als Zusätze dieser Art eignen sich insbesondere Zink-Cadnv:um-Sulfide, da diese mit jeder gewünschten: Leuchtfarbe, außer blau, mit genügend schneller Abklinggeschwindigkeit herstellbar sind.Luminescent screen in discharge tubes, in particular Braun tubes. The main patent 622 302 protects a luminescent screen in discharge tubes, the luminous substance of which is made of zinc sulfide, the cleaning of which is carried out to such an extent that a bright, light blue, inert preparation is created. The present invention relates to a luminescent screen; its luminous material from the newly acquired. Zinc sulfide and suitable additives to this. Preparation consists in order to obtain preparations that are suitable for converting electrical energy, in particular cathode ray energy, into light of any color with a high light output. Zinc cadnium sulfides are particularly suitable as additives of this type, since they can be produced with any desired luminous color, except blue, with a sufficiently rapid decay rate.

Bei Verwendung von Leuchtschirmen in Entladungsröhren, besonders in Kathodenstrahlröhren, die für Fernsehen verwendet werden, ist es wünschenswert, eine weißes Lumineszenzlicht erzeugende Substanz verwenden zu können. Um solche - Substanzen zur Verwendung in Entladungsröhren herzustellen, wird das hellblau leuchtende Zinksulfid z. B. mit Zink-Cadmium-Sulfid passend abgestimmter Leuchtfarbe im richtigen Mengenverhältnis gemischt: Zu dem reinen, hellblau leuchtenden Zinksulfid können jedoch an Stelle von Zink-Cadmium-Sulfid oder gemeinsam mit diesem auch andere Substanzen hinzugefügt erden, um ein Leuchten in einer gewünschten Farbe hervorzurufen.When using fluorescent screens in discharge tubes, especially in Cathode ray tubes used for television, it is desirable to to be able to use a substance generating white luminescent light. To such - Making substances for use in discharge tubes turns light blue luminous zinc sulfide z. B. with zinc-cadmium-sulfide matching luminous color mixed in the right proportions: to the pure, bright blue shining zinc sulfide However, instead of zinc-cadmium-sulfide or together with it, others can also be used Ground substances added to produce a glow in a desired color.

Die Herstellung des reinsten, blau leuchtenden Zinksulfids erfolgt in an sich bekannter Weise, z. B. nach Angaben der_ Iriauguraldissertation von Erwin Körner »über die Darstellungsmethoden und die Lumineszenzfähigkeit reinsten Zinksulfids und Zinkoxyds<; Greifswald, 1930.The purest, blue glowing zinc sulfide is produced in a manner known per se, for. B. according to information from the Iriaugural dissertation by Erwin Körner »on the presentation methods and the luminescence ability of the purest zinc sulphide and zinc oxide <; Greifswald, 1930.

Claims (1)

PATENTANSPRUCH: Lumineszenzschirm fürEntladungsröhren, insbesondere Braunscheu Röhren, nach Ha:uptpabent 622 3o2, gekennzeichnet durch Mischungen von reinstem, hellblau leuchtendem Zinksulfid mit andersfarbig leuchtenden Zink-Cadmium-Sulfiden und bzw. -oder anderen Lumineszenzpräparaten.Claim: luminescent screen for discharge tubes, in particular Braunscheu Röhren, according to Ha: uptpabent 622 3o2, characterized by mixtures of purest, bright blue zinc sulphide with zinc-cadmium sulphides in different colors and / or other luminescent preparations.
DET39350D 1931-08-21 1931-08-21 Luminescent screen in discharge tubes, especially Braun tubes Expired DE640929C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DET39350D DE640929C (en) 1931-08-21 1931-08-21 Luminescent screen in discharge tubes, especially Braun tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET39350D DE640929C (en) 1931-08-21 1931-08-21 Luminescent screen in discharge tubes, especially Braun tubes

Publications (1)

Publication Number Publication Date
DE640929C true DE640929C (en) 1937-01-15

Family

ID=7560471

Family Applications (1)

Application Number Title Priority Date Filing Date
DET39350D Expired DE640929C (en) 1931-08-21 1931-08-21 Luminescent screen in discharge tubes, especially Braun tubes

Country Status (1)

Country Link
DE (1) DE640929C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE747911C (en) * 1937-11-16 1944-10-20 Production of luminescent tungstates, molybdates and chromates

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE747911C (en) * 1937-11-16 1944-10-20 Production of luminescent tungstates, molybdates and chromates

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