Abstract: An optical disc for data storage includes a layer of color-shifting material. Light passing through the color-shifting layer will have a color determined by the various constructive and destructive interference of the various wavelengths after they have passed through the material, diffracted while passing through the material, and are reflected off of various portions of the material, resulting in a color change when the viewing angle is changed. Additionally, an optical variable device may be defined within the disc, and may include the color-shifting layer.
Type:
Application
Filed:
June 7, 2005
Publication date:
December 7, 2006
Applicant:
Applied Optical Technologies Holdings, Inc.
Inventors:
Nigel Abraham, Mark Turnage, Patrick Byrne, John Town
Abstract: The present invention is directed toward a tamper evident informational article such as a temporary vehicle registration which may be made of paper or paperboard. The informational article has a zone for inserting information and a pattern within said zone which will resist effective counterfeiting. A transparent tape which preferably has a silicone resin coating which contains a wax is adhesively secured over information contained within the zone.
Type:
Grant
Filed:
June 25, 2003
Date of Patent:
January 4, 2005
Assignee:
Applied Optical Technologies Holdings, Inc.
Abstract: The present invention is directed toward a tamper evident informational article such as a temporary vehicle registration which may be made of paper or paperboard. The informational article includes a substrate having a zone for inserting information and a refractive image disposed within the zone. A covering is secured to at least a portion of the zone. In that way, efforts to remove the covering from the substrate will result in removal of a portion of the refractive image.
Type:
Grant
Filed:
April 8, 2003
Date of Patent:
July 20, 2004
Assignee:
Applied Optical Technologies Holdings, Inc.
Abstract: The present invention is directed toward a tamper evident informational article such as a temporary vehicle registration which may be made of paper or paperboard. The informational article has a zone for inserting information and a pattern within said zone which will resist effective counterfeiting. A transparent tape which preferably has a silicone resin coating which contains a wax is adhesively secured over information contained within the zone.
Type:
Grant
Filed:
February 1, 2002
Date of Patent:
October 14, 2003
Assignee:
Applied Optical Technologies Holdings, Inc.