DE900489C - Surface layer for glasses u. like - Google Patents

Surface layer for glasses u. like

Info

Publication number
DE900489C
DE900489C DEO675D DEO0000675D DE900489C DE 900489 C DE900489 C DE 900489C DE O675 D DEO675 D DE O675D DE O0000675 D DEO0000675 D DE O0000675D DE 900489 C DE900489 C DE 900489C
Authority
DE
Germany
Prior art keywords
glasses
surface layer
layers
cerium
plastics
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
DEO675D
Other languages
German (de)
Inventor
Dr Karl Hammer
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.)
Optische Werke CA Steinheil Soehne GmbH
Original Assignee
Optische Werke CA Steinheil Soehne 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 Optische Werke CA Steinheil Soehne GmbH filed Critical Optische Werke CA Steinheil Soehne GmbH
Priority to DEO675D priority Critical patent/DE900489C/en
Application granted granted Critical
Publication of DE900489C publication Critical patent/DE900489C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL 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
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/22—Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
    • C03C17/23—Oxides
    • C03C17/27—Oxides by oxidation of a coating previously applied
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL 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
    • C03C2217/00—Coatings on glass
    • C03C2217/20—Materials for coating a single layer on glass
    • C03C2217/21—Oxides
    • C03C2217/228—Other specific oxides
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL 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
    • C03C2218/00—Methods for coating glass
    • C03C2218/30—Aspects of methods for coating glass not covered above
    • C03C2218/32—After-treatment
    • C03C2218/322—Oxidation

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 Optical Elements (AREA)
  • Surface Treatment Of Glass (AREA)

Description

Oberflächenschicht für Gläser u. dgl. Die Erfindung betrifft eine Oberflächenschicht für optische und andere Gläser, Kunststoffe u. dgl., die einen höheren Brechungsindex aufweist als die Gläser u. dgl. und insbesondere als Belag für lichtdurchlässige Spiegel geeignet .ist.Surface layer for glasses and the like Surface layer for optical and other glasses, plastics and the like Has a higher refractive index than the glasses and the like, and in particular as a coating is suitable for translucent mirrors.

Bekannte, aus Rhodium, Aluminium, Silber, Bleisulfid hergestellte Spiegel und Schichten aus einem Metalloxyd, z. B. Chromoxyd, weisen vor allem den Nachteil auf, daß sie einen. verhältnismäßig großen Teil des auffallenden Lichtes absorbieren (bei Lichthalbierung ungefähr 3o bis 401/o. Absorption).Well-known, made from rhodium, aluminum, silver, lead sulfide Mirror and layers of a metal oxide, e.g. B. chromium oxide, have above all the Disadvantage on that they have a. relatively large part of the incident light absorb (with light halving about 3o to 401 / o. absorption).

Andere bekannte Stoffe, z. B. Antimonsulfid, und Zinksulfid, haben, wenn sie als Spiegelbelag verwendet werden, zwar geringe Absorption, aber auch geringe Beständigkeit gegenüber mechanischen bzw. chemischen Einwirkungen. Frei von ,diesen Nachteilen isti :die neue Oberflächenschicht, die gemäß der Erfindung aus Ceroxyd @besteht. Es hat sich überraschenderweise gezeigt, daß dieser Stoff bei den in Betracht kommenden: Dicken, nicht nur praktisch keine Ab- sorption, sondern auch große Widerstandsfähigkeit gegen mechanische und chemische Einflüsse aufweist. .So wurde bei einer aus Ceroxyd bestehenden, auf eine Seite einer Glasplatte aufgebrachten Oberflächenschicht eine Durchlässigkeit von un, gefähr 7o °/o, eine Reflexion von etwa 30% gemessen. Die Wischfestgkeit einer solchen Schicht und ihre Beständigkeit gegen; Säuren, Alkalien usw. sind sehr groß, wogegen beispielsweise Schichten aus Antimonsulfid schon nach wenige Minuten währendem Eintauchen in, kaltes Wasser zum Abblättern gebracht wurden. Zü bemerken ist noch, daß Spiegel mit Ceraxydschichten hergestellt werden 'können, die sowohl in der Durchsicht als auch in der Reflexion keinen; Farbstich aufweisen, wogegen - Spiegel aus Antimonsulfid in der Durchsicht stets einen Gelb stich zeigen. Die Heristellung einer Oberflächenschicht auf Glas, Kunststoffen u. dgl. kann: gemäß der Erfindung durch Aufbringen von Cer und anschließ-endes Oxydieren, gegebenenfalls bei höherer Zemperatur erfolgen. Ceroxyd selbst aufzubringen ist, z. B. beim Aufdampfen im Hochvakuum, ungünstig wegen seines hohen Schmelzpunktes.Other known substances, e.g. B. antimony sulfide, and zinc sulfide, if they are used as a mirror coating, although low absorption, but also low resistance to mechanical or chemical effects. The new surface layer, which according to the invention consists of cerium oxide, is free from these disadvantages. It has surprisingly been found that this substance in the coming considered: not only absorption thicknesses virtually no waste, but also high resistance to mechanical and chemical influences has. Thus, for a surface layer made of cerium oxide and applied to one side of a glass plate, a transmittance of about 70%, a reflection of about 30% was measured. The smudge resistance of such a layer and its resistance to; Acids, alkalis, etc. are very large, whereas layers of antimony sulfide, for example, were made to peel off after just a few minutes of immersion in cold water. It should also be noted that mirrors can be produced with cerium oxide layers which do not show either in transmission or in reflection; Have a color cast, whereas - mirrors made of antimony sulfide always show a yellow cast when viewed through. A surface layer can be produced on glass, plastics and the like: according to the invention, by applying cerium and then oxidizing it, if necessary at a higher temperature. Ceroxide is to be applied by itself, e.g. B. during vapor deposition in a high vacuum, unfavorable because of its high melting point.

Besonders vorteilhaft ist es, die Oxydation von Cer bereits während des Aufbringens. durchzuführen, da auf diese Weise für das Aufbringen: der Schicht nur ein einziger Arbeitsgang erfbriderlich ist.It is particularly advantageous to prevent cerium from being oxidized of application. perform as this way for applying: the layer only one work step is necessary.

Insbesondere beim Aufbringen der Oberflächenschicht im Hochvakuum empfiehlt es sich, die Gläser u. dgl. vor der Belegung der Einwirkung einer elektrischen Glimmentladung (Elektronen-oder Innenbombardement) auszusetzen.Especially when applying the surface layer in a high vacuum It is recommended that the glasses and the like before the exposure to an electrical Suspend glow discharge (electron or internal bombardment).

Die Oberflächenschicht kam zwecks Erzielung von Reflexionsverminderung mit mindestens. einer weiteren Schicht vereinigt sein, wobei die Brechungsindizes der Schichten voneinander verschieden: sind.The surface layer came for the purpose of reducing reflection with at least. be combined in another layer, the refractive indices of layers different from one another: are.

Claims (3)

PATENTANSPRÜCHE: i. Oberflächenschicht .für optische und andere Gläser, Kunststoffe u. dgl., die einen häheren Brechungsindex aufweist als die Gläser u. dgl., insbesondere als Belag für lichtdurchlässige Spiegel, .dadurch gekennzeichnet, daß sie aus Ceroxydbesteht. .->: PATENT CLAIMS: i. Surface layer for optical and other glasses, plastics and the like, which has a higher refractive index than glasses and the like, in particular as a covering for translucent mirrors, characterized in that it consists of cerium oxide. .->: 2. Oberflächenschicht nach Anspruch i, da-Aiurch gekerinzenchnet, daß sie zwecks. Erzielung von Reflexionsverminderung mit mindestens einer weiteren .Schicht vereinigt ist, wobei die Brechungsindizes der Schichten voneinander verschieden sind. 2. Surface layer according to claim i, da-Aiurch denied that they in order to. Achievement of reflection reduction with at least Another .Schicht is combined, the refractive indices of the layers are different from each other. 3. Verfahren; zürn. Herstellen, von Schichten nach Anspruch z oder 2, dadurch gekenmzechnet, - daß von Cer ausgegangen wird, das frühestens während des Aufbringens, auf die Gläser u. ,dgl. oder auf Zwischenschichten einer Oxydation unterworfen wind.3. procedure; angry. Manufacture, from layers to Claim z or 2, characterized gekenmzechnet, - that cerium is assumed, the earliest during application, on the glasses and the like. or on intermediate layers one Oxidation subject to wind.
DEO675D 1944-07-01 1944-07-01 Surface layer for glasses u. like Expired DE900489C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEO675D DE900489C (en) 1944-07-01 1944-07-01 Surface layer for glasses u. like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEO675D DE900489C (en) 1944-07-01 1944-07-01 Surface layer for glasses u. like

Publications (1)

Publication Number Publication Date
DE900489C true DE900489C (en) 1953-12-28

Family

ID=7349284

Family Applications (1)

Application Number Title Priority Date Filing Date
DEO675D Expired DE900489C (en) 1944-07-01 1944-07-01 Surface layer for glasses u. like

Country Status (1)

Country Link
DE (1) DE900489C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1013089B (en) * 1953-12-09 1957-08-01 Zeiss Jena Veb Carl Translucent mirror
DE1087828B (en) * 1956-04-07 1960-08-25 Freiberger Praez Smechanik Veb Neutral gray light filter
DE1228489B (en) * 1958-10-30 1966-11-10 Balzers Vakuum G M B H Process for the production of thin, in the visible wavelength range practically absorption-free oxide layers for optical purposes by vapor deposition in a vacuum

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1013089B (en) * 1953-12-09 1957-08-01 Zeiss Jena Veb Carl Translucent mirror
DE1087828B (en) * 1956-04-07 1960-08-25 Freiberger Praez Smechanik Veb Neutral gray light filter
DE1228489B (en) * 1958-10-30 1966-11-10 Balzers Vakuum G M B H Process for the production of thin, in the visible wavelength range practically absorption-free oxide layers for optical purposes by vapor deposition in a vacuum

Similar Documents

Publication Publication Date Title
AT207058B (en) Process for producing a conductive, non-metallic coating on a non-conductive object
DE948280C (en) Process for making permanent two-dimensional photographic images
DE761095C (en) Process for the production of aluminum reflectors
DE900489C (en) Surface layer for glasses u. like
DE1046841B (en) Curved panes of glass with coatings and processes for their production as well as objects made of such panes of glass
DE1931936B2 (en) THERMAL REFLECTIVE GLASS TO WHICH A TRANSLUCENT FILM IS APPLIED TO A GLASS BASE AND THE PROCESS FOR ITS MANUFACTURING
DE2726058B2 (en) Process for the production of black selectively absorbing coatings for solar collectors
DE833155C (en) Process for the production of bodies consisting of a core made of chrome iron or a similar chrome alloy and a thin layer of another material
DE2347525B2 (en) Solar control glass
DE2613398A1 (en) METHOD OF MANUFACTURING A HEAT REFLECTIVE GLASS PLATE
DE2358864B2 (en) Process for the formation of a light shield corresponding to a given pattern on transparent, alkali-containing glass using ion diffusion
DE2235814B2 (en) Process for the surface treatment of shaped glass bodies by applying an aqueous solution containing aluminum phosphate to the heated glass surface and a solution for carrying out the process
DE2406891A1 (en) MIRROR
DE2100295A1 (en) Transparent, heat-reflecting glass object and process for its manufacture
DE2028252A1 (en) Surface mirror and process for its manufacture
DE706347C (en) Process for the treatment of unpainted coatings made of so-called white brass
DE698098C (en) Process for making glass resistant to metal vapor
AT150243B (en) Glass vessel of high resistance to metal vapors and method for its manufacture.
DE761132C (en) Use of an aluminum alloy for objects with a high level of light reflectivity
DE441071C (en) Lead bearing metal
DE2318531C3 (en) Process for coating glass surfaces with firmly adhering chromium oxide coatings by pyrolysis of chromium compounds in solution on the heated glass surfaces
DE1496542B2 (en) Process for applying a firmly adhering, translucent, UV-absorbing protective covering in a thickness in the order of magnitude of a light wavelength on glass objects
DE2431695C3 (en) Process for improving the abrasion and wear resistance of glass objects
DE585816C (en) Process for the production of alkali beryllium borate glasses
DE505782C (en) Process for the production of a melting glass with low thermal expansion