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:
Oct. 08, 2019
Filed:
Dec. 21, 2012
Fraunhofer-gesellschaft Zur Forderung Der Angewandten Forschung E.v., Munich, DE;
Abstract
The invention relates to a method for producing an optical waveguide (), the surface of which is at least partly coated with a coating material. The coating material contained in a target () is removed using laser radiation () of a processing laser or converted into another aggregate state. The coating material is then deposited on the surface of the waveguide () and forms a coating thereon, said coating modifying the light guidance. It is the object of the present invention to provide an improved method for producing optical waveguides, in which guidance of undesired electromagnetic radiation and/or guidance of radiation in undesired areas of the waveguide is avoided. To this effect, the present invention proposes that the laser radiation () reflected from the target () or transmitted through the target heats-up the waveguide (), said laser radiation () being polarized and impinging the target () at a specified angle (α) between 10° and 80° relative to the surface normal.