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7630954 |
Data carrier comprising an optically variable element
A data carrier with an optically variable structure having an embossed structure with raised areas and a first coating contrasting with the surface of the data carrier. The embossed structure and...
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7576898 |
Method for using a deep image hologram as a security device and a deep image hologram
A holographic optical element (HOE) that includes a deep image hologram and a method for using this HOE as a security device are described. The deep image hologram is viewable with a collimated or...
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7551335 |
Optically variable element and the use thereof
The invention relates to an optically variable element which at least in surface portions has an interface embedded between two layers and which forms an optically effective structure, that...
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7538919 |
Three-dimensional hologram process with overt anti-counterfeit security using first object light, second object light, and reference light
The invention relates to a security-conscious hologram which can apply a sufficient three-dimensional appearance to a reconstructed image in both its vertical and horizontal directions, and which...
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7525705 |
Continually variable demetallization of metallized films and similar objects
A method of generating a variable demetallized pattern in a holographic web and a security device using such method. A holographic microstructure pattern is imparted to an oligomer disposed on a...
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7490548 |
Method for manufacturing water-based laser hologram paper
A method for manufacturing water-based laser hologram papers has acts of entirely or partially coating water-based varnish on a printed paper substrate, subjecting the paper substrate to a mirror...
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7429063 |
Counterfeit-proof metallic foil
A counterfeit-proof metal foil is textured in at least a given partial area of its surface, this partial area having a radiation refraction value which is different compared to the remaining...
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7319550 |
Method and apparatus for recording hologram, method and apparatus for reproducing hologram, and information retaining body
While Fourier transformation of a signal light beam is performed to perform recording during holographic recording so that a focal point is formed outside a holographic recording layer (defocus...
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7315407 |
Security system, particularly for valuable documents
The invention relates to a security system especially for security documents, wherein a security element is provided in a carrier plane, that under incident light holographically reconstructs a...
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7273234 |
Card with increased gripability
The invention disclosed herein represents a means for increasing the gripability of a credit-card-sized card. Specifically, dimples raised from, indented in, or embossed in a credit-card-sized card...
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7268926 |
Hologram laminate and hologram label
A hologram laminate and a hologram label allow traces of separation of the hologram to be clearly left on both the adherend and the hologram label and hence makes it possible to prevent reuse of...
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7259899 |
Narrow angle hologram device and method of manufacturing same
A method of manufacturing a master for producing a hologram device. A first master is produced with a compensating angle. The second master is produced from the first master with an index matching...
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7246824 |
Labels and method of forming the same
The invention provides for a label such as a temper evident holographic or diffractive security label that consists of at least two separate microstructures ( 30, 31 ), one exhibiting a holographic...
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7229720 |
Hologram film having identification information recorded thereon and method for manufacturing the same
A simplified method is provided for recording identification information, such as a serial number or the like, in a hologram-recorded film simultaneously with hologram duplication. The method...
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7215450 |
Optically variable element
The present invention relates to an optically variable element having surface portions with achromatic surface structures and different scatter, diffraction and reflection characteristics. The...
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7201821 |
Identifying medium and identifying method for object
The present invention provides a discrimination medium A for discriminating the authenticity of an article by providing an optically discriminating mark on the article. A film 20 having a light...
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7199911 |
Optical structure
An optical device for security and anti-counterfeit applications has a holographic diffractive structure that includes a discrete region that in response to white light illumination generates a...
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7172803 |
Laser markable carrier unit
The present invention relates to the laser inscription of a flexible inner support layer of a multilayered support unit, which is distinguished by the fact that the laser inscription of the inner...
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7161720 |
Embedded information carrier for optical data
In a system for authenticating information, a holographic element, including a first layer of optical information in a first coded pattern and a second layer of optical information in a second...
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7158273 |
Holographic data memory
A holographic data storage medium has a polymer film which is set up as a storage layer whose refractive index can be changed locally by heating. The polymer film is set up for the storage of...
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7141336 |
Hologram transfer film
Disclosed is a hologram transfer film which can realize easy and good transfer of a hologram and, at the same time, can realize stable transfer of the hologram in a transfer process. The hologram...
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7090917 |
Security strips
Security strips for identifying the genuineness of sheet material such as documents, securities and banknotes. The security strips are constructed of several different components, encoding means...
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7086666 |
Identification card with embedded halftone image security feature perceptible in transmitted light
An information-bearing laminar assembly, suitable for use as an identification card, is disclosed. The assembly is characterized by the provision therein of an embedded halftone image security...
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7085024 |
Hologram laminate and hologram label
A hologram laminate and a hologram label allow traces of separation of the hologram to be clearly left on both the adherend and the hologram label and hence makes it possible to prevent reuse of...
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7078090 |
Decorative foil
A decorative foil is in the form of a layer composite structure ( 1 ) and comprises at least a transparent base foil ( 2 ), a transparent cover layer ( 4 ) and a transparent dielectric layer ( 3 )...
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7040665 |
Carrier sheet with integrated detachable die-cut card having a magnet material backing
A carrier sheet comprising a printed paper sheet having an integrated detachable card with a magnetic backing and method of manufacturing same is described. The carrier sheet is comprised of a...
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6995883 |
Security document with an optical security area
A security document, such as a banknote, includes an optical security area having a first periodic optical structure and a security sign provided on the security area and configured to circumscribe...
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6994765 |
Method for forming images and intermediate transfer recording medium
The present invention provides a method for image formation, that can yield thermally transferred images which are excellent in various fastness properties even under severe service conditions, and...
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6994937 |
Hologram transfer foil
The invention provides a hologram transfer foil ( 1 ) comprising, that includes, in order from top to bottom, a substrate ( 7 ), a volume hologram layer ( 2 ) releasably stacked on substrate ( 7 )...
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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...
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6954293 |
Data carrier having an optically variable element and methods for producing it
The invention relates to a system comprising a series of data carriers, in particular identity cards, papers of value or the like, whereby the data carriers belonging to the system exhibit...
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6927885 |
Label with a diffractive bar code and reading arrangement for such labels
A label ( 1 ) made from a layer composite ( 15 ) includes at least one machine-readable diffractive bar code ( 3 ) consisting of narrow rectangular fields ( 4 ) occupied by the optically active...
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6924934 |
Diffractive safety element
A security element ( 2 ) comprising a plastic laminate ( 1 ) has a surface pattern which is composed mosaic-like at least from surface elements, wherein in the surface elements a reflecting...
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6909547 |
Security element with diffraction structures
A security element ( 2 ) comprising a plastic laminate has a surface pattern ( 12 ) composed mosaic-like from surface elements ( 13; 14; 15 ). Shaped into at least two of the surface elements ( 14;...
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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...
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6882452 |
Patterned deposition of refractive layers for high security holograms
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...
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6876473 |
Device with anti-counterfeiting diffractive structure
An optical device for security and anti-counterfeit applications comprises a diffractive structure comprising a discrete region that in response to white light illumination generates an image by a...
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6865001 |
System and method for encoding and decoding an image or document and document encoded thereby
Holographic and diffractive security devices and documents carrying security devices as well as system, apparatus, and method for making and using security devices. Security devices provide at...
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6849149 |
Hologram laminates
There are provided a hologram laminate and a hologram label which do not involve any problem in the production process per se of forging preventive labels using a volume hologram, can provide a...
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6822769 |
Security device
A security device includes a holographic optically variable effect generating structure having at least two discrete section. The sections that generate in response to white light illumination an...
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6810816 |
Ammunition tracking system
A tracking system for ammunition cartridges where the cartridge casings are provided with serial indicia on an inside surface such that spent casing found at a crime scene can be tracked to the...
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6805926 |
Security label having security element and method of making same
A security label having one or more security elements is used on or in association with items, such as consumer products, that have value and are susceptible to counterfeiting. The security label...
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6765704 |
Optical device
An optical device for security and anti-counterfeit applications comprises a holographic diffractive structure ( 8 ) that generates a holographic optically variable image by diffraction that...
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6764970 |
Woven labels with an invisible bar code
According to the invention the labels ( 22 ) are produced in a broad woven fabric ( 21 ) comprising ground warp yarn ( 4 ) and ground weft yarn ( 5 ) for a ground woven fabric ( 11 ), embroidery...
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6756157 |
Volume hologram laminate and label for preparation of volume hologram laminate
The present invention provides a volume hologram laminate by which a desirable reproduced wavelength is controlled and set optionally. The laminate has a first adhesive layer 3 , a volume hologram...
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6753989 |
Recording surface relief microstructure
A method of recording a surface relief microstructure in a record medium includes: i) causing a coherent reconstruction or replay beam to impinge on a holographic optical element assembly, the...
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6747768 |
Information carrier with a hologram
An information carrier includes information in the form of a hologram. In order to increase protection against copying and/or as a simple recognizable additional security feature of this...
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6737139 |
Continuous supply edge-to-edge laminate for plastic cards and method of fabrication
A laminate of transparent flexible material is formed to the precise size of a substrate and is made so that it will be laminated in place on the substrate. The laminate is in an elongated web that...
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6722700 |
Data carrier and method for producing same
The data carrier is preferably an identity card or payment card and is provided with at least one layer forming a card body, a transparent outer layer laminated thereon and a planar security...
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6718880 |
Method for image formation and intermediate transfer recording medium
The present invention provides a method for image formation, that can yield thermally transferred images which are excellent in various fastness properties even under severe service conditions, and...
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