GRID IMAGE WITH SEVERAL GRID FIELDS

The present invention relates to a grating image having one or more grating fields, each of which includes an electromagnetic radiation-influencing grating pattern comprising a plurality of grating lines, the grating lines being characterized by the parameters orientation, curvature, spacing and pro...

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Bibliographische Detailangaben
1. Verfasser:	DICHTL, Marius
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BOOK COVERS BOOKBINDING CHECKING-DEVICES CINEMATOGRAPHY DECORATIVE ARTS DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR ELECTROGRAPHY FILES HANDLING OF COINS OR OF PAPER CURRENCY OR SIMILAR VALUABLEPAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING,DISPENSING, CHANGING OR DEPOSITING HOLOGRAPHIC PROCESSES OR APPARATUS HOLOGRAPHY LOOSE LEAVES MOVABLE-STRIP WRITING OR READING APPARATUS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHOTOGRAPHY PHYSICS PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR SPECIAL DESIGNS OR PICTURES SPECIAL PRINTED MATTER TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention relates to a grating image having one or more grating fields, each of which includes an electromagnetic radiation-influencing grating pattern comprising a plurality of grating lines, the grating lines being characterized by the parameters orientation, curvature, spacing and profile. According to the present invention, in the grating image, a grating field (30) that is separately perceptible with the naked eye includes an electromagnetic radiation-influencing grating pattern having grating lines (32) for which at least one of the characteristic parameters orientation, curvature, spacing and profile varies (34) across the surface of the grating field.