Diffractive optical variable image including barcode
First Claim
1. An optically variable device, comprising:
- a first bar code, wherein the first bar code is rendered in the optically variable device based on a second bar code;
wherein the second bar code is a three-dimensional bar code including a plurality of bars each having a front portion, a rear portion, and sidewalls formed therebetween, wherein the distance between the front portion and rear portion of each bar of the second bar code is less than the height and width of the front portion of the respective bar of the second bar code.
3 Assignments
0 Petitions
Accused Products
Abstract
An optically variable device (OVD) is provided that includes a barcode rendered from a three-dimensional barcode. To increase the readability of the barcode rendered in the OVD, the bars of the three-dimensional barcode may have tapered sidewalls and depths that are small compared to their heights and widths. The barcode may be rendered in the OVD such that it is viewable only at certain angles or using certain wavelengths of light. Also provided is a barcode of multiple portions where a portion is rendered in an OVD and another portion is otherwise provided (e.g., printed). Such a barcode may have portions that are readable as independent barcodes and are also readable together as a single, compound barcode. Also provided is a method where a plurality of OVDs with unique images are associated with products, e.g., packaged together, so that receipt of a package of products with non-unique images indicates counterfeiting.
166 Citations
32 Claims
-
1. An optically variable device, comprising:
-
a first bar code, wherein the first bar code is rendered in the optically variable device based on a second bar code;
wherein the second bar code is a three-dimensional bar code including a plurality of bars each having a front portion, a rear portion, and sidewalls formed therebetween, wherein the distance between the front portion and rear portion of each bar of the second bar code is less than the height and width of the front portion of the respective bar of the second bar code. - View Dependent Claims (2, 3, 4)
-
-
5. An optically variable device, comprising:
-
a first bar code, wherein the first bar code is rendered in the optically variable device based on a second bar code;
wherein the second bar code is a three-dimensional bar code including a plurality of bars each having a front portion, a rear portion, and sidewalls formed therebetween; and
wherein the front portion of each bar of the second bar code has a first area and the rear portion of the respective bar has a second area smaller than the first area of the respective bar. - View Dependent Claims (6, 7, 8)
-
-
9. A machine readable symbol comprising:
-
a first portion and a second portion;
wherein the first portion of the machine readable symbol is rendered in an optically variable device, wherein the optically variable device is contained within a carrier associated with a substrate;
wherein the second portion of the machine readable symbol is provided on a surface associated with the substrate; and
wherein the first and second portions can be read as a single machine readable symbol. - View Dependent Claims (10, 11, 12, 13)
-
-
14. A method of generating a machine readable symbol, comprising:
-
providing a first portion of the machine readable symbol in an optically variable device that is included in a carrier;
associating the carrier with a substrate; and
providing a second portion of the machine readable symbol on a surface associated with the substrate so that the first and second portions can be read as a single machine readable symbol. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
-
-
26. A method of manufacturing optically variable devices for facilitating the authentication of products, comprising:
-
generating a plurality of optically variable devices, each of which includes a distinct image from a set of unique images;
creating a plurality of carriers each of which includes one of the plurality of optically variable devices; and
associating each of the plurality of carriers with a distinct product from a set of products such that the authenticity of the set of products can be determined based on the number of products of the set associated with carriers that include optically variable devices that include non-unique images. - View Dependent Claims (27, 28, 29, 30, 31)
-
-
32. An optically variable device, comprising:
-
a first bar code, wherein the first bar code is rendered in the optically variable device based on a second bar code;
wherein the second bar code is a three-dimensional bar code including a plurality of bars each having a front portion, a rear portion, and sidewalls formed therebetween, wherein the sidewalls have a color not detectable by a barcode scanner.
-
Specification