Patent ID: 11945253
Assignee: CRANE & CO., INC.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC B  C  D  G | IPC B  C  D  G

Claim 0:
1. A security device comprising:
an arrangement of image icon focusing elements wherein each image icon focusing element of the arrangement of image icon focusing elements has a focal path;
a first image icon layer comprising one or more image icons of a first characteristic color;
a second image icon layer disposed below the first image icon layer and comprising one or more image icons of a second characteristic color; and
one or more regions between image icons comprising a volume of substantially colorless material,
wherein, at a first viewing angle, a color is visible through each image icon focusing element, each image icon focusing element tuned to focus light of both a first wavelength of the first characteristic color and a second wavelength of the second characteristic color, and
wherein the color visible through each image icon focusing element at the first viewing angle is dependent on positions of the one or more image icons of the first characteristic color and the one or more image icons of the second characteristic color within the focal path of each image icon focusing element, and on one or a combination of the first characteristic color, the second characteristic color, and the substantially colorless material.