The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 13, 2013
Filed:
Dec. 02, 2009
Peter Bauer, Seligenstadt, DE;
Karsten Braeuer, Bruchkoebel, DE;
Marco Flach, Hanau, DE;
Andreas Langner, Freigericht, DE;
Richard Schmidt, Hammersbach, DE;
Clemens Schmitt, Blankenbach, DE;
Gerhard Schoetz, Aschaffenburg, DE;
Matthias Stecher, Erlensee, DE;
Peter Bauer, Seligenstadt, DE;
Karsten Braeuer, Bruchkoebel, DE;
Marco Flach, Hanau, DE;
Andreas Langner, Freigericht, DE;
Richard Schmidt, Hammersbach, DE;
Clemens Schmitt, Blankenbach, DE;
Gerhard Schoetz, Aschaffenburg, DE;
Matthias Stecher, Erlensee, DE;
Heraeus Quarzglas GmbH & Co. KG, Hanau, DE;
Abstract
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 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 area 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.