GB580137A - Improvements in the production of light reflecting layers - Google Patents
Improvements in the production of light reflecting layersInfo
- Publication number
- GB580137A GB580137A GB9878/44A GB987844A GB580137A GB 580137 A GB580137 A GB 580137A GB 9878/44 A GB9878/44 A GB 9878/44A GB 987844 A GB987844 A GB 987844A GB 580137 A GB580137 A GB 580137A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layer
- glass
- aluminium
- coating
- oxidise
- 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
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
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
- C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
- C03C17/361—Coatings of the type glass/metal/inorganic compound/metal/inorganic compound/other
-
- 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
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
-
- 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
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
- C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
- C03C17/3649—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer made of metals other than silver
-
- 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
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
- C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
- C03C17/3657—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the multilayer coating having optical properties
- C03C17/3663—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the multilayer coating having optical properties specially adapted for use as mirrors
-
- 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
- C03C2217/70—Properties of coatings
- C03C2217/78—Coatings specially designed to be durable, e.g. scratch-resistant
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)
- Inorganic Chemistry (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
580,137. Coating non-metals with metals. KODAK, Ltd. May 22, 1944, No. 9878. Convention date, July 3, 1943. [Class 82 (ii)] [Also in Group XX] In a method of forming a reflective coating on a surface, successive layers of a reflective material are deposited thereon by thermal evaporation in a partial vacuum, the vacuum being broken after the application of each layer to allow air to oxidise it and then reformed after the oxidation before forming the next layer. As shown applied to the formation of an aluminium mirror on glass supports each glass 11 is cleaned and placed on an apertured support 12 under a bell 15 and the pressure reduced to .1 mm. of mercury. A glow discharge is passed between the electrodes 17 and 18 to prepare the surface for the coating. The pressure is then further reduced to .0005 mm. of mercury and current supplied to a filament 14 the heat of which evaporates pieces of aluminium 25 which condense on the prepared glass surfaces. When sufficient aluminium has been deposited air is admitted through the cock 23 to oxidise the aluminium layer. Each glass support is then removed from the bell jar, held under a stream of cold water to harden the layer and rubbed with a soft cloth to smooth the surface and remove any particles of dust which would cause pin holes in the layer. The process is then repeated to give one or more further hardened oxidised layers, the completed reflective surface being entirely free from pin holes. A clean pilot glass is observed during each application so that each layer may be of approximately the same thickness.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US580137XA | 1943-07-03 | 1943-07-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB580137A true GB580137A (en) | 1946-08-28 |
Family
ID=22014123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9878/44A Expired GB580137A (en) | 1943-07-03 | 1944-05-22 | Improvements in the production of light reflecting layers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB580137A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3184329A (en) * | 1960-12-16 | 1965-05-18 | Rca Corp | Insulation |
-
1944
- 1944-05-22 GB GB9878/44A patent/GB580137A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3184329A (en) * | 1960-12-16 | 1965-05-18 | Rca Corp | Insulation |
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