Back to results
US 2004/0070803 A1Published application
Patterned deposition of refractive layers for high security holograms
AssigneeToray Plastics (America), Inc.
InventorsWolfgang Decker, Shawn Early, Jaimy Mauricio, Arthur Eric Bartholomay
Life of this patent
Estimating the term…
Abstract
This invention relates to the production of holographic devices. The holographic devices include a transparent high refractive coating that is applied selectively to provide additional security and moisture resistance.
Claims25
A method of making a holographic device comprising:
- providing a transparent substrate comprising a holographic image;
- applying a patterned coating on a predetermined portion of the substrate surface containing the holographic image;
- and
- depositing a high refractive index material to the substrate surface containing the patterned coating, wherein the patterned coating prevents the high refractive index coating from attaching to the substrate surface where the patterned coating is applied;
- and
- attaching the transparent substrate to a base.
3 more elements
A holographic device comprising:
- a transparent substrate comprising a holographic image;
- and
- a patterned high refractive index material on the surface of the transparent substrate that contains the holographic image, wherein the patterned high refractive index material is formed in a pattern that defines letters, figures or numbers.
A holographic device comprising:
- a transparent substrate comprising a holographic image;
- and
- a patterned high refractive index material on the surface of the transparent substrate that contains the holographic image, wherein the transparent substrate has a border and the patterned high refractive index material is located inside of the border.
Dependencies are inferred from the claim text.