Identification document with lenticular watermark
First Claim
1. An identification document comprising:
- (a) a transparent window formed in said identification document;
(b) a lenticular array formed on a front surface of said transparent window; and
(c) a phase shifted image laser inscribed onto a rear surface of said transparent window, wherein said phase shifted image is discernible as a lenticular image when viewed with the aid of said lenticular array.
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Accused Products
Abstract
An identification document and method of making such a document includes a transparent window which incorporates micro printing and lenticular technology to record document bearer specific information on a microscopic and macroscopic level. A window is punched into an opaque layer, respective laser engravable synthetic transparent layers are laminated to opposing sides of the opaque layer, and respective protective synthetic transparent layers are laminated to the outer sides of the two laser engravable synthetic transparent layers. A lenticular array is then formed on the front of the window in the associated protective synthetic transparent layer and then document bearer specific information is micro printed using a laser inscribing into the rear of the window in the laser engravable synthetic transparent layers. The phase shifted image is comprised of alphanumeric characters which are readable with the aid of a magnifying device, but which are also arranged to form a macroscopic lenticular image viewable through the lenticular array.
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Citations
29 Claims
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1. An identification document comprising:
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(a) a transparent window formed in said identification document;
(b) a lenticular array formed on a front surface of said transparent window; and
(c) a phase shifted image laser inscribed onto a rear surface of said transparent window, wherein said phase shifted image is discernible as a lenticular image when viewed with the aid of said lenticular array. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of manufacturing an identification document comprising:
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(a) punching a window in a central opaque core;
(b) laminating at least two laser engravable synthetic transparent layers to respective front and rear surfaces of said opaque core;
(c) laminating at least two protective synthetic transparent layers to outer sides of said at least two laser engravable synthetic transparent layers;
(d) forming a lenticular array on a front surface of said window, wherein said lenticular array is formed in a specified one of said at least two protective synthetic transparent layers covering said front surface; and
(e) laser inscribing a phase shifted image from a rear surface of said window, wherein said phase shifted image is discernible as a lenticular image when viewed with the aid of said lenticular array, and wherein said phase shifted image is formed in a specified one of said at least two laser engravable synthetic transparent layers covering said rear surface. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method of manufacturing an identification document comprising:
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(a) punching axially aligned windows in two opaque layers;
(b) laminating said two opaque layers to opposing sides of a central laser engravable transparent core wherein a portion of said central laser engravable transparent core is exposed in said axially aligned windows;
(c) laminating at least two protective synthetic transparent layers to outer sides of said two opaque layers;
(d) forming a lenticular array on a front surface of said axially aligned windows, wherein said lenticular array is formed in a specified one of said at least two protective synthetic transparent layers covering said front surface; and
(e) laser inscribing a phase shifted image from a rear surface of said axially aligned windows, wherein said phase shifted image is discernible as a lenticular image when viewed with the aid of said lenticular array, and wherein said phase shifted image is formed in said exposed portion of said central laser engravable transparent core. - View Dependent Claims (28, 29)
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Specification