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:
Jan. 31, 2017
Filed:
May. 10, 2012
Hans Lochbihler, Munich, DE;
Manfred Heim, Bad Tolz, DE;
Hans Lochbihler, Munich, DE;
Manfred Heim, Bad Tolz, DE;
GIESECKE & DEVRIENT GMBH, Munich, DE;
Abstract
A two-dimensionally periodic, color-filtering grating has a contiguous high-refractive. In an embodiment, the color-filtering grating includes a metallic ground layer defining a grating plane and above the ground layer a two-dimensionally regular pattern of individual high-refractive, such as metallic areal elements that respectively extend parallel to the grating plane and respectively are spaced apart from the ground layer through an intermediate dielectric by a distance that is greater than the thickness of the ground layer and of the areal elements. The regular pattern has in at least two directions, which run parallel to the grating plane, a periodicity between 100 nm and 800 nm, and preferably between 200 nm and 500 nm.