DE419613C - Process for the production of light-scattering hollow glasses, in particular incandescent lamps - Google Patents

Process for the production of light-scattering hollow glasses, in particular incandescent lamps

Info

Publication number
DE419613C
DE419613C DEP48405D DEP0048405D DE419613C DE 419613 C DE419613 C DE 419613C DE P48405 D DEP48405 D DE P48405D DE P0048405 D DEP0048405 D DE P0048405D DE 419613 C DE419613 C DE 419613C
Authority
DE
Germany
Prior art keywords
light
production
hollow glasses
incandescent lamps
glasses
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
DEP48405D
Other languages
German (de)
Inventor
Georg Gaidies
Dr Franz Skaupy
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
Priority to DEP48405D priority Critical patent/DE419613C/en
Application granted granted Critical
Publication of DE419613C publication Critical patent/DE419613C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/02Surface treatment of glass, not in the form of fibres or filaments, by coating with glass

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Surface Treatment Of Glass (AREA)

Description

Verfahren zur Herstellung von lichtzerstreuenden Hohlgläsern, insbesondere Glühlampenkolben. Lichtzerstreuende Hohlgläser «-erden gewöhnlich in der Weise hergestellt, daß klare Gläser nachträglich mattiert oder mit einem getrübten Überzug versehen werden. Vielfach stellt man sie aus überfangenem Glas her. Diese Verfahren liefern entweder nicht den gewünschten Grad an lichtzerstreuender Wirkung oder sie sind verhältnismäßig schwierig durchzuführen. Bei dem den Gegenstand der Erfindung bildenden Verfahren «-erden diese Nachteile vermieden.Process for the production of light-scattering hollow glasses, in particular Light bulb. Light-diffusing hollow glasses "- are usually manufactured in such a way that that clear glasses are subsequently matted or provided with a cloudy coating will. Often they are made from overlaid glass. These procedures deliver either not the desired level of light diffusing effect or they are relatively difficult to perform. When forming the subject of the invention Process «- these disadvantages are avoided.

Erfindungsgemäß wird auf die klaren oder unter Umständen mattierten Hohlgläser ein lichtzerstreuender weißgetrübter Emailleüberzug, der auch gefärbt sein kann, aufgebracht. Dieser Überzug muß sehr dünn sein, da die Gläser starken Temperaturschwankungen ausgesetzt sind. Um eine gute lichtzerstreuende Wirkung zu erzielen, bedarf es daher eines reichlichen Zusatzes an Trübungsmitteln. Derartige Emaillen geben Jedoch keine glatten Oberflächen. Nach der Erfindung wird daher auf die erste stark getrübte Emailleschicht eine zweite leicht schmelzbare Schicht aufgebracht, die entweder aus einer farblosen oder aus einer gefärbten Emaille besteht und die nach dem Einbrennen eine glatte Oberfläche ergibt. Der zweiten Schicht können ebenfalls Trübungsmittel beigefügt werden, natürlich nur in einem solchen Maße, daß die Erzielung der glatten Oberfläche nicht beeinträchtigt wird. Bei der Verwendung einer gefärbten Oberschicht wird im Gegensatz zu den bekannten gefärbten und gleichzeitig getrübten Einzelschichten erreicht, daß die Lichtabsorption in der gefärbten Schicht in niedrigen Grenzen gehalten wird, da keine mehrmalige Reflexion in der gefärbten Schicht stattfinden kann.According to the invention, the clear or, under certain circumstances, matted Hollow glasses have a light-diffusing, white-clouded enamel coating that is also colored may be upset. This coating must be very thin because the glasses are strong Are exposed to temperature fluctuations. To have a good light diffusing effect too achieve, therefore, an abundant addition of opacifiers is required. Such However, enamels do not give a smooth surface. According to the invention is therefore on the first, heavily opacified enamel layer, a second easily fusible layer is applied, which consists of either a colorless or a colored enamel and which gives a smooth surface after baking. The second layer can also Opacifiers are added, of course, only to such an extent that the achievement the smooth surface is not affected. When using a colored In contrast to the well-known, the upper layer is colored and at the same time tarnished Single layers achieved that the light absorption in the colored layer in low Limits is kept, since no multiple reflections take place in the colored layer can.

Die Herstellung der Gläser kann in der Weise stattfinden, daß beide Schichten nach irgendeinem bekannten Verfahren, z. B. Spritzen, Tauchen usw., nacheinander aufgetragen oder zusammen eingebrannt werden, oder dadurch, daß nach dem Auftragen der ersten Schicht erst diese eingebrannt unddann die zweite Schicht aufgetragen und eingebrannt wird.The manufacture of the glasses can take place in such a way that both Layers by any known method, e.g. B. spraying, dipping, etc., one after the other applied or baked together, or by that after application The first layer is burned in and then the second layer is applied and is branded.

Claims (1)

PATENT-ANsPRÜcHE: r. Verfahren zur Herstellung von lichtzerstreuenden Hohlgläsern, insbesondere Glühlampenkolben, durch Überziehen mit einer getrübten Emailleschicht und Einbrennen, dadurch gekennzeichnet, daß auf eine in bekannter Weise aufgebrachte erste Emailleschicht eine zweite beim Einbrennen eine glatte Oberfläche liefernde Emailleschicht aufgebracht wird. a. Verfahren nach Anspruch z, dadurch gekennzeichnet, daß die obere Emailleschicht gefärbt ist.PATENT CLAIMS: r. Method of making light diffusing Hollow glasses, in particular incandescent lamp bulbs, by covering them with a cloudy one Enamel layer and baking, characterized in that on a known Wise applied first enamel layer a second when baking a smooth one Surface delivering enamel layer is applied. a. Method according to claim z, characterized in that the upper enamel layer is colored.
DEP48405D 1924-07-09 1924-07-10 Process for the production of light-scattering hollow glasses, in particular incandescent lamps Expired DE419613C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP48405D DE419613C (en) 1924-07-09 1924-07-10 Process for the production of light-scattering hollow glasses, in particular incandescent lamps

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1600072X 1924-07-09
DEP48405D DE419613C (en) 1924-07-09 1924-07-10 Process for the production of light-scattering hollow glasses, in particular incandescent lamps

Publications (1)

Publication Number Publication Date
DE419613C true DE419613C (en) 1925-10-03

Family

ID=25990736

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP48405D Expired DE419613C (en) 1924-07-09 1924-07-10 Process for the production of light-scattering hollow glasses, in particular incandescent lamps

Country Status (1)

Country Link
DE (1) DE419613C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE756869C (en) * 1936-02-21 1953-05-11 American Securit Company Colored wall or cladding panel made of glass

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE756869C (en) * 1936-02-21 1953-05-11 American Securit Company Colored wall or cladding panel made of glass

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