| Patent application number | Description | Published |
|---|
| 20090260400 | Method for Producing a Tubular Semifinished Product From Fluorine-Doped Quartz Glass - To improve a generally known method for producing a tubular semifinished product from fluorine-doped quartz glass such that it is possible to produce a tubular semifinished product of fluorine-doped quartz glass with an inner bore of high quality while the efforts for making or treating the same are as small as possible, the present invention suggests a method comprising the following steps: (a) providing a substrate tube consisting of fluorine-doped quartz glass; (b) forming, in a deposition process, SiO | 10-22-2009 |
| 20100034998 | QUARTZ GLASS TUBE AS A SEMIFINISHED PRODUCT FOR PREFORM AND FIBER MANUFACTURE, AND METHOD FOR MAKING THE QUARTZ GLASS TUBE - To improve a known method for making a quartz glass tube as a semifinished product for the manufacture of optical fibers, the tube comprising an inner fluorine-doped quartz glass layer and an outer quartz glass layer, so as to achieve inexpensive manufacture and improved dimensional stability of the quartz glass tube, it is suggested according to the invention that the quartz glass of the inner layer should be produced in a first plasma deposition process with formation of an inner layer having a wall thickness of at least 1.5 mm, with a fluorine content of at least 1.5% by wt. being set in the quartz glass, and that the quartz glass of the outer layer should be produced in a second plasma deposition process and deposited directly or indirectly on the inner layer with formation of a composite tube, and that the composite tube should be elongated into the quartz glass tube. | 02-11-2010 |
| 20100251771 | METHOD FOR PRODUCING DOPED QUARTZ GLASS - The invention relates to a method allowing cost-effective production of doped quartz glass, particularly laser-active quartz glass, that is improved with regard to the homogeneity of the doping material distribution, in that a suspension is provided comprising SiO | 10-07-2010 |
| 20110177333 | METHOD FOR PRODUCING A TUBULAR SEMIFINISHED PRODUCT FROM QUARTZ GLASS, METHOD FOR PRODUCING AN OPTICAL COMPONENT USING THE SEMIFINISHED PRODUCT, AND SEMIFINISHED PRODUCT CONSISTING OF QUARTZ GLASS DOPED WITH FLUORINE - The aim of the invention is to improve a generally known method for producing quartz glass doped with fluorine, wherein SiO | 07-21-2011 |
| 20110274129 | METHOD FOR PRODUCING A CYLINDRICAL OPTICAL COMPONENT OF QUARTZ GLASS AND OPTICALLY ACTIVE COMPONENT OBTAINED BY SAID METHOD - Cylindrical optical components of quartz glass are known, which have an inner zone made of an inner zone glass, which extends in the direction of the longitudinal axis and is surrounded by a jacket zone made of a jacket zone glass, the average pt wall thickness thereof varying at least over a part of its length in the direction of the longitudinal axis of the component. The aim of the invention is to provide a method that allows a simple and cost-effective production of such an optical component from quartz glass. A method is proposed according to the invention, comprising the following method steps: (a) providing a first parison made of an inner zone glass, which has a first contact surface on the end face, said contact surface having a conical external contour; (b) providing a second parison from the jacket zone glass; (c) embedding the contact surface with a conical external contour into the jacket zone glass and welding the contact surface to the jacket zone glass, thereby forming a composite parison which has a cone-shaped inner zone area of inner zone glass in a contact area, said inner zone area being surrounded by a jacket zone having the shape of an inner cone; and (d) elongation of the composite parison to form the optical component or a preproduct of the component. | 11-10-2011 |
| 20150086462 | METHOD FOR PRODUCING SiO2 GRANULATE - The invention relates to a process for producing SiO | 03-26-2015 |
| 20150197688 | METHOD FOR PRODUCING A DOPED SiO2 SLURRY AND USE OF THE SiO2 SLURRY - The invention relates to a method for producing a doped SiO | 07-16-2015 |
