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:
May. 26, 2009
Filed:
May. 15, 2007
Ernst Parzl, Dingolfing, DE;
Johann Piegendorfer, Altfraunhofen, DE;
Martin Zöttl, Tiefenbach, DE;
Schott AG, Mainz, DE;
Abstract
In order to provide light guides, in particular in the form of glass rod portions, with improved end faces, the invention provides a method for examining glass rods, in particular light guides, in which the glass rods are arranged in front of two cameras, the cameras recording the end faces from the sides, in two different radial viewing directions with respect to the longitudinal axis of the glass rods, and the planarity and angularity of the contour of the end faces being optically and contactlessly determined with both cameras on the basis of the recordings, and a glass rod automatically being rejected and/or sorted by means of a rejecting/sorting device if there is any deviation of the planarity or angularity of the end faces of the glass rod from a respectively prescribed set range.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile