Back to results
US 6,747,768 B1Granted
Information carrier with a hologram
AssigneeXetos AG
InventorsFrank Knocke, Dieter Ebert
Life of this patent
Estimating the term…
Abstract
An information carrier includes information in the form of a hologram. In order to increase protection against copying and/or as a simple recognizable additional security feature of this information carrier, the hologram is the combination of a transmission hologram and a reflection hologram.
Claims15
An information carrier in which information is contained in the form of a hologram, wherein the hologram is the combination of a transmission hologram and a reflection hologram.
A method for producing an information carrier comprising:
- recording information in a hologram, wherein said hologram is a combination of a transmission hologram and a reflection hologram;
- recording said transmission hologram in a first hologram layer;
- recording said reflection hologram in a second hologram record;
- and
- laminating said first and second hologram layers one on top of the other.
2 more elements
A method for producing an information carrier comprising:
- recording information in a hologram, wherein said hologram is a combination of a transmission hologram and a reflection hologram;
- recording said reflection hologram in a single hologram layer;
- and
- recording said transmission hologram in said single hologram layer, or vice versa.
1 more element
Dependencies are inferred from the claim text.