Class 359/2 - Authentication

Subclass of Class 359 - Optical: systems and elements
Definition: Subject matter wherein a hologram is used to provide proof
No. of patents: 400
Last issue date: 01/31/2012

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Number	Title	Issue Date
8107143	Optical device, labeled article, and optical kit Increased is the variety of changes of an image in accordance with observation conditions displayed on an optical device including a solidified liquid crystal material. An optical device includes a layered structure including a recess-forming layer with light-transm...	01/31/2012
8081359	Anti-counterfeit security and methods for its production and verification The security object comprises a substrate, a surface structure and a hologram layer. A volume hologram is arranged in the hologram layer. The hologram layer is deformed in homogeneously by the surface structure, which gives rise to readily detectable changes in the ...	12/20/2011
8081358	Laser marking hologram having a volume hologram with interference fringes using selective irradiation The present invention is provided to enhance security of a volume hologram by recording therein individualized information such as information of character, numerical character, picture pattern, biometric matter and/or the like by irradiating laser light to the volu...	12/20/2011
8077364	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 pattern outside the carrier plane, in which concealed information is sto...	12/13/2011
8059320	Method for production of documents with a hologram and a document with a hologram In a method for production of documents with a hologram and a document with a hologram, wherein, in a first step, a hologram is exposed in a photographic film and, in a second step, the photographic film is applied to a document support, the individualisation of the...	11/15/2011
8018636	Laminated holographic medium, recording apparatus/method, reproduction apparatus/method for the same and design method of laminated hologram medium A medium 1, that is a laminated holographic medium of the present invention is composed of two or more core layers 2; 3 or more cladding layers 3 set so as to bind the core layers 2; one or more diffraction grating layers 4 storing...	09/13/2011
7995256	Transparent card with hologram, and apparatus for recognizing transparent card with hologram A main object of the present invention is to provide a transparent card with a hologram having the excellent design property and a high security property. The present invention achieves the object by providing a transparent card with a hologram, characterized by com...	08/09/2011
7982930	Preserved and enhanced holographic and optically variable devices and method for making the same An optically variable device has a substrate with an optically variable relief and a coating on the optically variable relief. The coating is applied as a liquid dispersion including a plurality of optical enhancer particles in a solvent. ...	07/19/2011
7940436	Authenticity indicator An authenticity indicator is difficult to be forged and has an authenticity that can be confirmed easily and accurately. The authenticity of the authenticity indicator can be checked by making light enter the authenticity indicator from front side and observing the ...	05/10/2011
7903308	Security device based on customized microprism film A security device comprises at least two regions, each region comprising a prismatic surface structure defining an array of substantially planar facets. Each region forms a reflector due to total internal reflection when viewed at least one first viewing angle and i...	03/08/2011
7894112	Security element with a diffraction structure having subareas representing recognizable information A security element, preferably for documents of value, which at least has one area with a diffraction structure, which under specific viewing conditions reconstructs a diffractive image. This area has subareas, which do not take part in the reconstruction of the dif...	02/22/2011
7884983	Image display body and image formation method An image display body in which a decorative effect is obtained more effectively by an optical diffraction structure. In an image display body, an optical diffraction structure portion constituted by the optical diffraction structure in a halftone dot state is provid...	02/08/2011
7880943	Patterned optical structures with enhanced security feature A security article is a substrate having a diffractive grating thereon, coated with a windowed high index layer and a color shifting coating visible through the window. The color shifting coating is disposed on the high index layer or on the opposite side of the sub...	02/01/2011
7876481	Patterned optical structures with enhanced security feature A security image and method for forming said image is disclosed wherein an image having a layer with a hologram therein has an additional layer of magnetically aligned flakes together forming an image that is difficult to counterfeit and is highly attractive. Prefer...	01/25/2011
7839546	Security device using parallax movement to view front and rear layers A security device including a surface relief microstructure which, in response to incident radiation, replays a hologram viewable within a viewing zone, the hologram including at least a first holographic image element in an image plane spaced from the surface of th...	11/23/2010
7839547	Optical fiber illumination device and inspection apparatus An inspection apparatus includes a light source unit which irradiates illumination light onto a hologram of a medium from a predetermined direction at which diffraction light from the hologram is obtained, a first light receiving member which receives the diffractio...	11/23/2010
7835047	Bi-directional informational article within an optical variable devise An informational article including a holographic film layer and certain additional ink receptive coating, high-opacity blocking, security printing, image receptive coating, ultraviolet reflected core laminate, and/or adhesive layers coupled together. Certain of the ...	11/16/2010
7821691	Zero-order diffractive filter A Zero-order diffractive filter comprising a first layer (1) with a periodic diffractive microstructure, forming a waveguide, and at least one adjacent second layer (2, 4, 5), wherein said first layer (1) has a refractive index that is higher th...	10/26/2010
7796311	Security device with multiple holographic or diffraction effect generating structures A security device comprises first and second holographic or diffraction effect generating structures recorded in respective sets of substantially non-overlapping regions of a record medium. The regions of one set are interleaved with regions of the other set, whereb...	09/14/2010
7782509	Security device A security device comprises first zero order diffractive microstructure (1) on a substrate, a second zero order diffractive microstructure (2), and an intermediate light transmissive layer (4) separating the two diffractive microstructures. The ...	08/24/2010
7738150	Hologram methods for signature security, consolidated content, and an accelerometer Techniques for identifying encoded digital data in a multichannel hologram are described. A method can include steps of reading a first channel of a multichannel hologram, extracting first content data stored in the first channel, reading a second channel of the mul...	06/15/2010
7729027	Image-formed object and method for producing the same The present invention provides an image-formed object having security property improved, in which, even in the case where the image-formed object comprises a plurality of optical diffraction structures, the presence of each optical diffraction structure is hardly re...	06/01/2010
7729026	Security device with metameric features using diffractive pigment flakes A metameric optical structure is disclosed having first optical structures comprising diffractive flakes having diffractive structures thereon, and a second optical structures having non-diffractive flakes which may have other special effect properties, such as colo...	06/01/2010
7724408	Security system, especially for security 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 pattern outside the carrier plane, in which concealed information is sto...	05/25/2010
7719733	Diffractive security element comprising a half-tone picture A diffractive security element has a half-tone image comprising diffractive structures in a reflection layer, which are embedded in a layer composite between a transparent embossing layer and a protective lacquer layer. The half-tone image is divided into image elem...	05/18/2010
7706037	Fabrication process for cholesteric liquid crystal media having a volume hologram The invention provides a process capable of fabricating a cholesteric liquid crystal medium having a volume hologram with efficiency yet without recourse to complicated steps such as an alignment step. This is achievable as follows. A volume hologram layer is formed...	04/27/2010
7675662	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 coded pattern is inserted into a reader. The reader includes an opening i...	03/09/2010
7672030	Holographic fine-line pattern The present invention relates to a three-dimensional security feature using a hologram which can not be counterfeited with color copying machines or diffraction grating image forming devices. The three-dimensional security feature comprises a hologram which is recor...	03/02/2010
7663789	Method of printing security documents A method of providing a security document having a security feature includes creating the security document and determining an identity associated with the security document. The identity is then used to generate a digital signature of at least part of the identity....	02/16/2010
7630109	Covert security coating A multilayer thin film filter is disclosed an organic dielectric layer serving as a spacer layer in a Fabry-Perot structure. The dielectric has embossed regions of varying thicknesses wherein the thickness within a region is substantially uniform. Each different reg...	12/08/2009
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 at least partially collimated light source having a center wavelength...	08/18/2009
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 interface having a free-form surface which appears three-dimensionally for a...	06/23/2009
7545545	Fabrication process for cholesteric liquid crystal media having a volume hologram The invention provides a process capable of fabricating a cholesteric liquid crystal medium having a volume hologram with efficiency yet without recourse to complicated steps such as an alignment step. This is achievable as follows. A volume hologram layer is formed...	06/09/2009
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 is difficult to illegally copy and easily told from any illegal copy f...	05/26/2009
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 surface of a substrate. A metal layer, such as aluminum, is deposited t...	04/28/2009
7508559	Synthetic colour hologram A surface relief hologram that includes two or more patterns, each pattern being sensitive to different radiation wavelengths. The hologram is made by defining relief features that are sensitive to different wavelengths, and in particular, to one wavelength that is ...	03/24/2009
7483188	Security device A security device comprises a holographic or diffractive optically variable effect generating structure which, when viewed normally i.e. perpendicularly to the plane of the device, replays at least one composite image, the composite image being defined by at least a...	01/27/2009
7435979	Optical device and method of manufacture The present invention provides for a method of producing an optical device by means of electron beam lithography and including the step of varying the characteristics of the electron beam spot during formation of the device and also an apparatus for producing diffra...	10/14/2008
7420720	Optical element and method for the production thereof A method for producing an optical element, preferably a security feature, wherein a film having a first embossed hologram in an embossing layer is provided, and a second embossed hologram is embossed into the same embossing layer such that the first embossed hologra...	09/02/2008
7405851	Method for identifying articles The invention relates to a method for identifying articles, wherein article identification data are made available and the article is provided with a hologram representing said data so that the article can be identified by way of an intensity profile corresponding t...	07/29/2008

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Class 359/2 - Authentication