Patent №
US 6,494,491
Granted
2002-12-17
Filed 2000
Owner
ALUSUISSE TECHNOLOGY & MANAGEMENT LTD.
+1 more
Lab
—
AI components
1
vision
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
09719628
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 (12, 14) separated a distance (d) from each other by means of a transparent layer of material (10). The distance (d) between the images 12, 14) and the distance (a) between two neighboring elements (16) forming the images (12, 14) 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 (12, 14) 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.
AI classification
Ownership
ALUSUISSE TECHNOLOGY & MANAGEMENT LTD.
assignment · 114450565
ALCAN TECHNOLOGY & MANAGEMENT LTD.
namechg · 128770412
Assignors
ZEITER, PATRIK, LUTHI, MARKUS, LOHWASSER, WOLFGANG
On an employer assignment, the assignors are typically the inventors.