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:
Sep. 11, 2012
Filed:
Oct. 23, 2009
Irina Menz, Grasbrunn, DE;
Guenther Dausmann, Grasbrunn, DE;
Irina Menz, Grasbrunn, DE;
Guenther Dausmann, Grasbrunn, DE;
Hologram Industries Research GmbH, Pliening-Ottersberg, DE;
Abstract
A production method is provided by which a copied volume hologram from a multi-layer master is later customized by utilization of the color tuning properties of the light-curable materials used for the application onto personal documents. These holographic individual data, such as a passport photo, are also separately detectable, without the holographic elements copied from the master, that are visible under other viewing angles, impairing the visibility of the individual data. The volume hologram overlay obtained by this method is applied on personal and valuable documents to increase protection against forgery, possesses superimposed optically variable items of information that are separately visible under different viewing angles and give a defined color change under different view angles, wherein at least one of these items of optical information represents individual personal data, in particular a passport photograph.