Matches 1 - 23 out of 23
Match Document Document Title
7305117 Methods and tangible objects employing machine readable data  
The present invention relates generally to steganography. In one implementation we provide a method comprising: receiving optical scan data representing at least a portion of a physical object. The...
7251077 Diffuse reflector and method  
A diffuse reflector comprises a substrate ( 20 ) having an asymmetric, reflective, periodic surface relief microstructure formed such that, under illumination by a multiplicity of wavelengths in a...
7162052 Steganographically encoding specular surfaces  
The present invention provides techniques to steganographically mark specular surfaces. In one implementation, we steganographically mark a specular surface by providing a steganographic signal...
7048307 Reflective display  
A display includes a base having a front surface, an adhesive pattern formed over a first area of the front surface, a reflective layer over the adhesive pattern, and may include an image formed...
6987590 Patterned reflective optical structures  
An optical structure includes a light transmissive substrate having a surface relief pattern applied thereon, such as a hologram. A patterned layer of a reflective material is applied over portions...
6929761 Molded hologram apparatus method and product  
Holographic lines are formed directly on products by holding a holographic plate and a block under a lip on a frame and mounting the frame for limited movement within a recess in a mold half. As a...
6903850 Security device  
A security device has a substrate formed with a surface relief defining an optically variable effect generating structure. At least two different reflection enhancing materials are provided on, or...
6882737 Digitally watermarking holograms for identity documents  
The present invention relates to digital watermarks integrated into holograms, watermarked hologram structures, and related applications as an authentication technique. One method creates a...
6874414 Method and apparatus for screen printing  
A method and apparatus for screen printing for producing security foils for objects of value such as papers of value consisting of a carrier foil and a cover layer applied thereto, the cover layer...
6806983 Apparatus and method for generating diffractive element using liquid crystal display  
Device, method, and system for recording diffractive high resolution text, pictorial, and/or other graphical information is provided which is particularly suited to recording information that would...
6782115 Watermark holograms  
Methods for integrating digital watermarks into holograms, watermarked hologram structures, and related applications. One method creates a watermark image, and then embeds the watermark image into...
6775839 Optical storage device with print layer surface feature  
An optical storage medium having an optically-transparent flexible substrate, a reflective layer bonded to the substrate surface, and a print layer bonded to the reflective layer, where the print...
6715797 Methods of creating a tamper resistant informational article  
Methods of creating tamper resistant informational articles and related products are disclosed. In one embodiment, a lens has a preformed transparent hologram, metallized portions are provided and...
6697179 Multi-layer hologram label  
A multi-layer hologram label includes a base layer having a surface on which a number of layers of adhesive materials are coated in a stacked manner. Each layer has a surface on which a pattern...
6688221 Valuable document with a security element  
The invention relates to a method for producing security foils for objects of value such as papers of value consisting of a carrier foil and a cover layer applied thereto, the cover layer having...
6655719 Methods of creating a tamper resistant informational article  
Methods of creating tamper resistant informational articles and related products are disclosed. In one embodiment, a lens has a preformed transparent hologram, metallized portions are provided and...
6608911 Digitally watermaking holograms for use with smart cards  
The present invention relates to digital watermarks integrated into holograms, watermarked hologram structures, and related applications as an authentication technique. One method creates a...
6436584 Image-recording medium, method for forming image-recording medium, method and apparatus for reading data  
There is described an image-recording medium and an image-reading method, which make it possible to improve reading accuracy of information by avoiding duplication of an optical variable image with...
6316082 Laminate structure  
The present invention relates to the field of laminated materials and, in particular, to laminates (1) for stamping foils and security threads (1). In one aspect there is provided a laminate (1)...
6222650 Holographic authentication element and document having holographic authentication element formed thereon  
Device, method, and system for recording diffractive high resolution text, pictorial, and/or other graphical information is provided which is particularly suited to recording information that would...
6113149 Pseudo three-dimensional image display and method of manufacturing including tactile surface texture  
A reflective layer is formed on a front surface of a cardboard or other base sheet. An at least partially transparent printed image is formed on the reflective layer. A first textured pattern which...
6070724 Package with holographic image generating decal  
In order to depict features such as pivoting and/or the flexure of elements of an article or articles which are enclosed within a package, at least one holographic generating layer is disposed on...
6060143 Optical information carrier  
An optical information carrier is in the form of a composite laminate having a carrier foil. The underside and the top side of the carrier foil are provided with optically effective structures. The...
Matches 1 - 23 out of 23