Kinematic images formed by orienting alignable flakes
AssigneeJDS Uniphase Corporation
InventorsVladimir P. Raksha, Paul G. Coombs, Charles T. Markantes, Jay M. Holman, Neil Teitelbaum
Life of this patent
Estimating the term…
Abstract
An image is disclosed comprised of flakes in a carrier, such as an ink vehicle or a paint that can be aligned in a magnetic field. The flakes are aligned so as to produce one or more kinematic features such as a rolling bar that appears to move as the image is tilted. These images can provide security features on high-value documents, such as bank notes.
Claims23
An article for producing a first rolling bar, comprising a substrate having a first region coated with aligned pigment flakes,
- wherein said flakes are aligned
- so as to form a first arching pattern in a cross-section of the first rolling bar, and
- so that the first rolling bar appears to roll across the first region as the article is tilted or the position of the light source upon the article is varied,
- and wherein the first region is a non-rectangular region so that, when the first rolling bar rolls across the first region, it appears to change its length, or to move in the direction of its length, or to change its area.
An article comprising an image printed on a substrate comprising:
- a non-rectangular closed region coated with aligned pigment flakes, wherein said flakes are aligned in an arching pattern so as to produce a kinematic object therewithin, wherein the kinematic object appears to move across the closed region as the image is tilted or the position of the light source upon the image is varied, and wherein the area of the kinematic object changes in size as the object appears to move across the region, or wherein the object appears to move horizontally and vertically simultaneously as the kinematic object appears to move.
An article comprising an image printed on a substrate, the image comprising:
- a plurality of magnetic pigment flakes in a carrier wherein a portion of the plurality of magnetic flakes are aligned in an arching pattern relative to a surface of the substrate so as to create a contrasting bar across the image appearing between a first adjacent field and a second adjacent field, the contrasting bar appearing to move relative to the first adjacent field and the second adjacent field as the image is tilted.
An article comprising printed a substrate comprising:
- a first region coated with a first plurality of aligned pigment flakes, wherein said flakes are aligned in a first pattern arching in a first direction so as to produce a first kinematic object therewithin, and
- a second region coated with a second plurality of aligned pigment flakes, wherein said flakes are aligned in a second pattern arching in a second direction opposite to the first direction so as to produce a second kinematic object therewithin;
- wherein the first and second kinematic objects appear to move in different directions simultaneously as the article is tilted.
A method of forming an image, comprising the steps of:
- coating a substrate with coating of pigment flakes, and before the coating cures, exposing the coating to varying magnetic field, by moving the substrate within a magnetic field, or by varying a magnetic field permeating the coating.
Dependencies are inferred from the claim text.