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:
Dec. 17, 2002
Filed:
Dec. 15, 2000
Patrik Zeiter, Zürich, CH;
Markus Lüthi, Marthalen, CH;
Wolfgang Lohwasser, Gailingen, DE;
Alcan Technology & Management Ltd., Neuhausen am Rheinfall, CH;
Abstract
An item with a surface area creating an optical effect is such that the surface area with the optical effect exhibits at least two images ( ) separated a distance (d) from each other by means of a transparent layer of material ( ). The distance (d) between the images ) and the distance (a) between two neighboring elements ( ) forming the images ( ) are adjusted with respect to each other such that on altering the viewing angle (&agr;) the perceived overall image formed by the overlapping of the images ( ) is altered. A preferred application for the item lies in forms of packaging, packaging material, an aid to packaging, bonds or entry tickets with forgery-proof surface area and/or surface areas that have to meet high demands.