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. 13, 2015
Filed:
Mar. 18, 2010
Charles Boegli, Marin, CH;
Steffen Weissmantel, Chemnitz, DE;
Günter Reisse, Chemnitz, DE;
Andy Engel, Colditz, DE;
Rene Boettcher, Mittweida, DE;
Werner Steffen, Stansstad, CH;
Charles Boegli, Marin, CH;
Steffen Weissmantel, Chemnitz, DE;
Günter Reisse, Chemnitz, DE;
Andy Engel, Colditz, DE;
Rene Boettcher, Mittweida, DE;
Werner Steffen, Stansstad, CH;
Boegli-Gravures S.A., Marin, CH;
Abstract
In the method for structuring at least one area of a solid body surface provided with a ta-C coating, a mask in the homogenous spot of the optical system is used in order to shape the beam in the mask projection technique and then a diaphragm in front of the imaging optics. A structure is applied by means of an excimer laser having pulse durations in the nanosecond range, a number of mask and diaphragm combinations being arranged in a exchanger device and the exchanger device being adapted to place both one of the masks and one of the diaphragms in the beam path of the laser independently of each other, the masks and diaphragms being arranged in holders while being displaceable linearly or rotatively and rotatable about themselves. This method allows the rational manufacture of very complex, extremely fraud-resistant authentication features and/or of esthetically attractive, optical diffraction effective colored patterns.