2629results about "Information cards" patented technology

A system and a method for verifying authenticity of a physical copy and a digital copy of a document are disclosed. The method comprises registering a document in a repository by storing details related to the document in a location of the repository. A symbology for the document is generated. The symbology is an identifier of the location of the repository comprising the document. The symbology is associated with either a physical or a digital copy of the document. The digital copy of the document is printed to generate a printed copy. The printed copy or the physical copy of the document is scanned to generate a scanned image. The document and the details related to the document present at the location of the repository are accessed. The scanned image is compared with the document stored in the repository to determine the authenticity of either the physical copy or the digital copy of the document.

Devices configured to emit colored light when illuminated with ultraviolet light and color-shifting displays containing the same are disclosed.

Disclosed are devices with dynamic optical properties suitable for use as security or authentication devices, for example for documents or items of importance or value, in order to help prevent counterfeit of the same. Such devices, at least in selected embodiments, enable observation of dynamic changes or moving entities within the device by collective or enhanced imaging of the dynamic changes or moveable entities, the motion or position of which may otherwise be difficult to observe, or indiscernible to, the naked eye.

A personalizable security document includes a combination of two secure features, namely, a laser-engravable material, and a hologram overlapping the laser-engravable material. The metallic properties of the laser-engravable material result in an enhancement of the holographic effect obtained from the hologram. Additionally, the hologram may extend to other portions of the security document in a continuous manner, for example, as a full-page hologram. This may connect the secondary image formed in the laser-engravable material with other features provided in different portions of the security document to further increase the security.

The present invention provides a composite pigment, which comprises a first cholesteric liquid crystal pigment and a second cholesteric liquid crystal pigment. The above-mentioned first cholesteric liquid crystal pigment is a pigment having a center wavelength of a selective reflection band in the range of 400 nm or more and 800 nm or less and a selective reflection bandwidth of 150 nm or less. The above-mentioned second cholesteric liquid crystal pigment is a pigment having a selective reflection bandwidth of 200 nm or more in the range of 400 nm or more and 800 nm or less. At least a part of the selective reflection band of the above-mentioned first cholesteric liquid crystal pigment overlaps with the selective reflection band of the above-mentioned second cholesteric liquid crystal pigment. With respect to the total amount of the above-mentioned first cholesteric liquid crystal pigment and the above-mentioned second cholesteric liquid crystal pigment, the content of the above-mentioned first cholesteric liquid crystal pigment is more than 0% by weight and 30% by weight or less.

An article including at least one first metallic layer, at least one dielectric layer; and at least one second metallic layer is disclosed. The at least one dielectric layer can include at least one of (i) a photo-initiator, (ii) an oxygen inhibition mitigation composition, (iii) a leveling agent, and (iv) a defoamer.

Document (100) with a security feature, comprising: a first substrate layer (103) having a first substrate layer region (105), wherein the substrate layer region (105) is impregnated with a black fluid over the entire thickness of the first substrate layer (103), the black fluid having carbon particles; a second substrate layer (107) with a second substrate layer region (109), wherein the second substrate layer (107) is arranged above the first substrate layer (103), the second substrate layer region (109) having a light reflection characteristic which differs from a light reflection characteristic of the first substrate layer region (105), wherein the first substrate layer region (105) and the second substrate layer region (109) form a composite security feature.

The invention relates to an optically variable security element (12) for securing valuables (10), having a reflective surface area (14) containing a plurality of reflective pixel elements (20) which together produce an optically variable motif representation, the appearance of which changes when the security element is tilted along a first direction (16) in the plane of the reflective surface area.According to the invention, it is provided that the pixel elements (20) along the first direction (16) each have an inclination to the reflective surface region (14) which is constant except for any isolated discontinuities, that the pixel elements (20) along a second direction (18) perpendicular to the first direction in the plane of the reflective surface region each have an inclination to the reflective surface region (14), which inclination varies in the entire surface region (14) or in two or more partial surface regions (52, 54; 60, 62, 64) visible to the naked eye, in each case except for any isolated discontinuities, within a predetermined inclination range, whereby the optically variable motif representation appears with a substantially uniform brightness in the entire surface region or in the said partial surface regions when tilted along the second direction (18).

In a general aspect, orientation information is used to generate a unique code. In some aspects, orientation information is extracted from an object. The object includes multiple elements, and the orientation information indicates the relative spatial orientations of the respective elements. The orientation information can be extracted, for instance, by a scanner system that detects the elements. A unique code is generated for the object based on the orientation information. In some examples, the elements are diamond particles that each have one or more color centers, and the orientation information is extracted by detecting the color centers.

The disclosure includes a system and method for obtaining at least one image of a document under test, wherein valid instances of the document under test include at least one three-dimensional security feature; obtaining a first image snippet from the document under test, the first image snippet corresponding to at least a first portion of the three-dimensional security feature present in the valid instances of the document; deriving first dimensional data associated with the first image snippet; analyzing the first dimensional data to determine one or more of: whether the first dimensional data is consistent with a presence of the three-dimensional security feature, and whether the first dimensional data is consistent with second dimensional data; and modifying a likelihood that the document under test is accepted as valid, or rejected as invalid, based on the analysis of the first dimensional data.

The invention relates to the technical field of anti-counterfeiting, and discloses an anti-counterfeiting element, which comprises a dynamic pattern, the dynamic pattern comprises at least one bright line, and a region where the bright line moves is a feature region; the feature region comprises a plurality of curved surface structures, each curved surface structure has a plurality of light coordinates parallel to the surface of the feature region, each light coordinate comprises a first direction and a second direction, and each light coordinate is in one-to-one correspondence with line segments with different curvatures on the bright line; the curved surface structure is bent in the first direction, and the bending degree of the curved surface structure in the second direction is smaller than that of the curved surface structure in the first direction. The curved surface structure is bent along the first direction, so that the emergent light of the curved surface structure can be emitted in a fan-shaped direction range under the incident light in the preset direction, and the angle distribution of the emergent light is more uniform, that is, the single curved surface structure can obtain a combined effect equivalent to that of a plurality of reflective facets in the prior art; and the dynamic effect of bright line movement is clearer.

The invention provides an optical anti-counterfeiting film with a three-dimensional dynamic display effect, the minimum function structure of the optical anti-counterfeiting film comprises a first Moire image layer, a transparent optical refraction layer and a second Moire image layer which generates a Moire effect with the first Moire image layer, one of two coherent Moire images is processed on the front surface of the transparent optical film, and the other of the two coherent Moire images is processed on the rear surface of the transparent optical refraction layer. And the other one of the two coherent Moire images is processed at the corresponding position of the rear surface, and the period of the Moire image has a strict mathematical relationship with the refractive index n of the optical transparent material and the thickness h of the optical transparent material, so that a three-dimensional dynamic pattern effect capable of being observed by naked eyes is realized. According to different processing methods, the manufacturing method of the optical anti-counterfeiting film and the product of the optical anti-counterfeiting film can be realized from the cost of common printing to the cost of high-precision micro-nano processing such as electron beam lithography, the market requirements of various grades can be met, and the anti-counterfeiting difficulty grade can be changed according to different image design and processing methods.

The invention relates to the technical field of flexible packaging, in particular to a degradable holographic anti-counterfeiting laser packaging material and a preparation method thereof. The degradable holographic anti-counterfeiting laser packaging material comprises a surface coating, a first polylactic acid film layer, a first adhesive layer, a holographic laser layer, a vacuum aluminum-plated layer, a second adhesive layer and a second polylactic acid film layer, the surface coating, the first polylactic acid film layer, the first adhesive layer, the holographic laser layer, the vacuum aluminum-plated layer, the second adhesive layer and the second polylactic acid film layer are sequentially arranged from top to bottom. The packaging material provided by the invention has the characteristics of heat sealability, degradability and direct food contact, and also has a very good anti-counterfeiting effect and a beautiful appearance.

The invention relates to the technical field of anti-counterfeiting, and discloses an anti-counterfeiting element which comprises a base material, the surface of the base material is provided with a feature area, and the feature area comprises a plurality of curved surface structures; the curved surface structure has a first direction and a second direction which are parallel to the surface of the base material, the curved surface structure is bent in the first direction, and the bending degree of the curved surface structure in the second direction is smaller than that of the curved surface structure in the first direction. The plurality of curved surface structures are arranged in the characteristic area, and each curved surface structure is bent along the first direction, so that the emergent light of the curved surface structures can be emitted in a fan-shaped direction range under the incident light in the preset direction, the angle distribution of the emergent light is more uniform, and the light emitting efficiency is improved. Therefore, even if a single curved surface structure can obtain a combined effect equivalent to that of a plurality of reflective facets in the prior art, not only can a dynamic effect with higher resolution be realized, but also a finer and more stable appearance pattern can be realized, and the visual angle range is widened.

The present invention relates to the technical field of security features comprising taggants by means of Surface-Enhanced Raman Spectroscopy (SERS) and their detection. Furthermore, the present invention relates to the field of UV-Vis curable security inks comprising SERS tags for printing security features on substrates, in particular on security documents or articles, wherein said inks comprise i) one or more surface enhanced Raman spectroscopy (SERS) tags, ii) one or more vinyl ether containing compounds, iii) one or more cationically radiation curable compounds different from the one or more vinyl ether containing compounds of ii) and iv) one or more cationic photoinitiators being a salt of hexafluorophosphate.

An optical product can be configured, when illuminated, to reproduce an image that appears to be a 3D image of at least a part of a 3D object. The optical product can include a surface comprising a plurality of portions. Each portion can correspond to a point on a surface of the 3D object. One or more non-holographic features can be disposed within each portion configured to produce at least part of the image without relying on diffraction. An interference optical structure can be disposed on one or more features. A gradient in the features can correlate to a surface normal of the surface of the 3D object at the corresponding point. An orientation of the features can correlate to an orientation of the surface of the 3D object at the corresponding point.

A decorative substrate includes a base material, and a texture layer arranged on the base material. A plurality of grating grids are arranged on a surface on the side of the texture layer from the base material. At least the plurality of grating grids includes a plurality of grating units annularly arranged around a central point. Each grating unit includes a plurality of strip-shaped protrusions. The plurality of strip-shaped protrusions are sequentially arranged in the radius direction of a circle with the central point as its center. In the grating grids, each strip-shaped protrusion includes a first surface close to the central point, and a second surface away from the central point. The first surface and the second surface are connected to a third surface of the strip-shaped protrusion. An included angle formed by the first surface and the third surface of the strip-shaped protrusion is less than or equal to an included angle formed by the second surface and the third surface of the strip-shaped protrusion.

The present invention provides an optical anti-counterfeiting element and an optical anti-counterfeiting product. The optical anti-counterfeiting element includes: a substrate; and a micro-structure layer, wherein the micro-structure layer is located on at least one side surface of the substrate, and aplane where the micro-structure layer is located has at least one principal line, the micro-structure layer comprises a plurality of reflective structures along an extension direction of the at least one principal line; aside of each of the plurality of reflective structures away from the substrate is provided with a reflective surface, and a plane angle of a dihedral angle formed by the reflective surface and asurface of the substrate is an inclination angle; wherein inclination angles of all of the plurality of reflective structures in the extension direction of the at least one principal lineat least includea variation period, and within the variation period, avariation of all of the inclination angles is formed by superposing a main variation and a secondary variation, and when the optical anti-counterfeiting element is rotated along a rotation axis in aplane where the optical anti-counterfeiting element is located, the optical anti-counterfeiting element presents a global dynamic feature and a localized dynamic feature due to the main variation and the secondary variation. The present invention solves the problem in the related art that a dynamic feature of an optical anti-counterfeiting element is not easily recognized.

Security feature for securing a valuable document, wherein the security feature is based on a luminescent substance which in pure form exhibits a different excitation behavior than when applied in dilute form in the valuable document, wherein the luminescent substance is based on an inorganic host lattice doped with Mn(V) as a luminophore, the mole fraction of Mn(V) in the luminescent substance is less than 2%, and the host lattice of the luminescent substance is selected from apatites of type A5(PO4)3Z, spodiosites of type A2PO4Z, and phosphates of type A3(PO4)2, where A = Ca, Sr, Ba and their mixtures and Z = F, Cl, OH and their mixtures.

The invention relates to a security marking (100), a method and a device for reading and decoding the security marking (100), a security document (150) marked with the security marking (100), and a method and a system for verifying and authenticating said security document (150). The security marking (100) comprises a machine readable marking (130) overlapping with a magnetically induced layer (120) of a material including magnetically oriented reflective platelet-shaped magnetic or magnetizable pigment particles with two zones (120a) and (120b) of distinct orientations of the particles. The encoded data on the machine readable marking (130) being decodable only after the data separately read from the two zones (120a) and (120b) are gathered.

To provide a micro-optical security device having zones of color.SOLUTION: A micro-optical security device (100) with zone-by-zone color transitions includes: a planar array of light collecting elements (140); and a pictorial icon layer (120) with a plurality of retaining structures (710) defining isolated volumes at a first depth within the pictorial icon layer. The security device further includes a first zone (350) of pictorial icons, the first zone of pictorial icons having a first predetermined subset of the plurality of retaining structures comprising a hardened colored material of a first color. The micro-optical security device also includes a second zone (360) of pictorial icons comprising a second predetermined subset of the plurality of retaining structures, the isolated volumes of the retaining structures of the second predetermined subset of the plurality of retaining structures comprising a hardened colored material of a second color, the second color contrasting with the first color.SELECTED DRAWING: Figure 1

The invention provides a dynamic polarization three-dimensional imaging system, which relates to the technical field of anti-counterfeiting encryption and comprises a light source, a polarization film and a color three-dimensional imaging module which are sequentially arranged along a light path, the light source is used for providing visible band incident light; the polarizing film is configured to transmit TM polarized light when rotating 0 degree and transmit TE polarized light when rotating 90 degrees; the color three-dimensional imaging module comprises a micro lens array, a transparent spacing layer and a micro image-text array which are sequentially arranged along a light path; the micro image-text array comprises a metal coating layer, a grating layer and a glass substrate which are stacked from top to bottom, wherein the grating layer forms a Fabry-Perot-like microcavity resonance structure; the polarization state of the incident light is switched by rotating the polarization film, so that the stereo image of the micro image-text array is dynamically switched among an appearing state, a hiding state or a color changing state. According to the invention, wide-color-gamut and dynamically-adjustable color stereo imaging is realized, and the complexity and the identifiability of anti-counterfeiting encryption are improved.

The present application relates to the anti-counterfeiting technical field and discloses an anti-counterfeiting element that comprises: a dynamic pattern, wherein the dynamic pattern comprises at least one bright line, and a feature area is an area range within which the bright line moves; wherein the feature area comprises a plurality of curved-surface structures, each curved-surface structure has a plurality of light coordinate zones parallel to a surface of the feature area, each of the light coordinate zones includes a first direction and a second direction, respective ones of the light coordinate zones correspond to line segments with different curvatures on the bright line in one-to-one correspondence; the curved-surface structure is shaped in a curved manner along the first direction, wherein a bending degree of the curved-surface structure along the second direction is less than that of the curved-surface structure along the first direction. By arranging each curved-surface structure to be shaped in a curved manner along the first direction, for incident light in a predetermined direction, emergent light from the curved-surface structure can come out over a fan-shaped direction range, so that angle distribution of the emergent light is more uniform, that is, an effect equivalent to the combination effect obtained by a plurality of reflective facets in the prior art can be obtained with each single curved-surface structure, therefore, a clearer dynamic effect can be achieved for movement of the bright line.

The present invention relates to the technical field of security features comprising taggants by means of Surface-Enhanced Raman Spectroscopy (SERS) and their detection. Furthermore, the present invention relates to the field of UV-Vis curable security inks comprising SERS tags for printing security features on substrates, in particular on security documents or articles, wherein said inks comprise one or more surface enhanced Raman spectroscopy (SERS) tags, one or more radiation curable compounds, and one or more photoinitiators and wherein said inks lack a vinyl ether containing compound.

A decorative substrate includes a base, and a texture layer arranged on the base. A plurality of grating grids are arranged on a surface on the side of the texture layer from the base. The plurality of grating grids includes a plurality of grating structures annularly arranged around a central point. Each grating structure includes a plurality of strip-shaped protrusions, which are sequentially arranged in a radius direction of a circle with the central point as its center. In the grating grids, each strip-shaped protrusion includes a first surface close to the central point, and a second surface away from the central point. The first surface and the second surface are connected to a third surface of the strip-shaped protrusion. An included angle formed by the first surface and the third surface is less than or equal to an included angle formed by the second surface and the third surface.

An optical product can reproduce a first 3D image of at least part of a first 3D object and a second 3D image of at least part of a second 3D object. The optical product comprises a surface configured, when illuminated, to reproduce by reflected or transmitted light, the first 3D image without reproducing the second 3D image at a first angle of view, and the second 3D image without reproducing the first 3D image at a second angle of view. Each portion of first portions can correspond to a point on a surface of the first 3D object, and comprise first non-holographic features configured to produce at least part of the first 3D image. Each portion of second portions can correspond to a point on a surface of the second 3D object, and comprise second non-holographic features configured to produce at least part of the second 3D image.

A security element with increased protection against forgery includes at least one first region with structures that reflect an image motif in different spatial regions, such that a moving image is produced for an observer when a light source is moved correspondingly and / or when the viewing angle is changed. When the light source is moved and / or the viewing angle is changed, a movement of the image motif occurs at the same time. Furthermore, an optical effect layer is provided which defines a second region. The optical effect layer is formed as a thin-layer element, wherein the structures are covered by the optical effect layer over their entire surface or partially.

The invention relates to the technical field of cigarette package anti-counterfeiting, in particular to a multilayer body with a 3D anti-counterfeiting effect, a preparation method of the multilayer body and an anti-counterfeiting packaging material. The multilayer body comprises a base material layer, a microlens array layer arranged on the front surface of the base material layer and a miniature image-text layer arranged on the rear surface of the base material layer, the base material layer comprises a protruding part and a plane part, the front surface of the base material layer comprises a convex surface and a front plane, and the rear surface of the base material layer comprises a concave surface and a rear plane; the micro lens array layer is arranged on the convex surface, and the miniature image-text layer is arranged on the concave surface. According to the invention, the microlens array layer forms the curved surface structure, so that the optical axis directions of the microlenses in different areas are naturally changed, a wider viewing angle is covered, and an observer can see a clear and distortionless three-dimensional image even if watching the three-dimensional image from a large lateral angle; and meanwhile, the light path change is more complicated, and a larger-amplitude and smoother dynamic effect is provided.