| Patent application number | Description | Published |
|---|
| 20080227616 | Use of Glass Ceramics - The invention relates to novel uses of glass ceramics, wherein glass ceramics, in particular, in the form of a glass ceramic tube, are used. Said glass ceramics contain 0—less than 4 wt % P20 | 09-18-2008 |
| 20080282734 | APPARATUS AND METHOD FOR THE PRODUCTION OF HIGH-MELTING GLASS MATERIALS OR GLASS CERAMIC MATERIALS - The invention relates to a method and apparatus for the production of high-melting glass materials or high-melting glass ceramic materials by a process during which a temperature of a molten mass exceeds 1,760° C., wherein a shard material or raw material is molten to a molten mass, the molten mass is fined, and the molten mass emerges via a tubular outlet made of iridium or an iridium alloy having an iridium content of at least 50 wt.-%. According to the invention the temperature of a section of said tubular outlet, which is in contact with the ambient atmosphere having a natural gas composition, is controlled or regulated such that said temperature is held below 1,000° C. except during pouring out the molten mass out of said tubular outlet. Thus, an oxidative decomposition of the apparatus can be prevented. | 11-20-2008 |
| 20090067792 | Fiber-Optic Cable - Step-index optical waveguides are made of multicomponent glass containing a core glass and an outer glass which entirely surrounds the core class. A fiber-optic cable for conducting electromagnetic radiation, contains at least one bundle of individual fibers which encompass the step-index optical waveguides that are made of multicomponent glass containing a core glass and an outer glass that entirely surrounds the core glass on the circumferential wall thereof. These step-index optical waveguides provide great transmission capacity for transmitting data while keeping the transfer characteristics sufficiently durable. Furthermore, the fiber-optic cable is resistant against physical and chemical environmental influences and be protected against radical ambient chemicals. These aims are achieved by the fact that the outer glass of the step-index optical waveguides is provided with a material composition which is largely free from chemical interactions with the core glass when the fibers are drawn and is chemically inactive towards the plastic jacket. | 03-12-2009 |
| 20090163342 | CORE GLASS IN THE ALKALI-ZINC-SILICATE GLASS SYSTEM FOR AN FIBER-OPTIC LIGHT GUIDE AND FIBER-OPTIC LIGHT GUIDE MADE WITH SAID CORE GLASS - A core glass and a fiber-optic light guide made from it are described. The core glass is in the alkali-zinc-silicate system and contains, in Mol % on an oxide basis: 54.5-65, SiO | 06-25-2009 |
| 20100222199 | OPTICAL GLASS, OPTICAL ELEMENTS MADE THEREFROM, METHOD OF MAKING THE OPTICAL ELEMENTS FROM THE GLASS, AND OPTICAL COMPONENTS COMPRISING ONE OR MORE OPTICAL ELEMENTS - The lead-free and arsenic-free optical glasses have a refractive index of 1.83≦n | 09-02-2010 |
| 20110011849 | METHOD AND DEVICE FOR PRODUCING GLASS PRODUCTS FROM A GLASS MELT - A method and a device for the continuous production of glass and glass ceramic products from a glass melt is provided, which simplifies the changing between two kinds of glass. The device includes a melting crucible and an induction coil, which preferably extends around the melting crucible in order to heat a glass melt by means of an induction field generated by the induction coil. The wall elements, which form the side wall of the crucible, have cooling channels, through which a cooling fluid can be conducted, so that the glass melt solidifies on the side wall and forms a skull layer. The interior side of the wall elements is formed at least in part by an aluminum nitride-containing ceramic. | 01-20-2011 |
| 20110243180 | METHOD AND DEVICE FOR THE CONTINUOUS MELTING OR REFINING OF MELTS - A method for the continuous production of products from a melt is provided. The method includes heating the melt to a predetermined temperature in a skull crucible, the bottom of which is formed from electrically non-conductive, but thermally conductive material. | 10-06-2011 |
| 20140284577 | HIGHLY REFRACTIVE THIN GLASSES - Thin glasses having high refractive index (n | 09-25-2014 |
| 20140376868 | HIGHLY TRANSMISSIVE GLASSES WITH HIGH SOLARISATION RESISTANCE, USE THEREOF AND METHOD FOR PRODUCTION THEREOF - Glasses are provided that are highly transparent and have very good resistance to solarisation. The resistance to solarisation is favoured to a special extent by the production method. The concentrations of reduced polyvalent ion species are reduced by targeted use of bubbling with an oxidising gas. Methods for producing glasses and to the uses thereof, particularly as core glasses in optical waveguides, are also provided. | 12-25-2014 |
