Embodiments for rendering holographic content by one or more processors are described. A security level associated with holographic content is determined. A security clearance associated with a viewer within a proximity of a holographic display is determined. The holographic content is caused to be rendered in a first mode or a second mode by the holographic display based on the determined security level associated with the holographic content and the determined security clearance associated with the viewer.

The present disclosure provides an anticounterfeiting system based on optical technology that verify the authenticity of protected cinema screens. The optical technology includes taggants embedded or attached to the screen and an optical readout system that can interrogate the taggant layer and receive the taggant output. The taggants are capable of reflecting a pattern that unambiguously demonstrates that the screen contains the taggant. The taggants are covert because they are not visible under normal lighting conditions or during cinema operation, but are detected when interrogated by the optical readout system.

There is provided a holographic optical element including: a hologram portion including a plurality of groups of unit regions, each group of unit regions of the hologram portion being configured to produce a respective holographic image under a respective light illumination having a respective predetermined wavelength; and a colour filter portion formed on the hologram portion, the colour filter portion including a plurality of groups of unit regions, each group of unit regions of the colour filter portion being arranged on a corresponding group of the plurality of groups of unit regions of the hologram portion, whereby the plurality of groups of unit regions of the colour filter portion is spatially arranged to form a predetermined colour image. There is also provided a method of forming the holographic optical element. There is further provided an article having optical security incorporated therein.

A computerized system for uniquely tagging and verifying authenticity of an article comprising: an object having a surface; a computer system adapted to: receive a three-dimensional predetermined image, create a holographic interference pattern created according to the three-dimensional predetermined image and at least one physical property of the surface of the object, wherein the holographic interference pattern is applied to the object, project a three-dimensional resulting image projected on a planar surface in response to the holographic interference pattern being illuminated wherein the computer system receives the three-dimensional resulting image, creates validation information according to a comparison of the three-dimensional predetermined image and the three-dimensional resulting image. In one embodiment, the holographic interference pattern is illuminated by a beam of light that is directed to the interference pattern by a beam splitter, thus causing the three-dimensional resulting image to be projected on the planar surface.

An authentication medium includes a sheet-like laminate sheet; a first region that is formed on the laminate sheet and where personal identification information is recorded; and a second region that is formed on the laminate sheet and has a hologram structure where check data associated with first individual information is recorded.

An optical device is formed by hot stamping a demetallized hologram to an optically variable foil or to a coating of optically variable ink. In another embodiment a hologram is hot stamped to a banknote or document printed with a color-shifting ink.

A method for determining the validity of a parallax image, including: receiving a parallax image's captured two-dimensional image having at least three target identifiers, wherein at least two target identifiers are located at different depth planes in the parallax image; identifying at least three target identifiers in the parallax image's captured two-dimensional image and determining spatial relationship between at least three target identifiers in the two-dimensional image of the parallax image; comparing the spatial relationship of at least three target identifiers in the parallax image's captured two-dimensional image against a predetermined spatial relationship of at least three target identifiers that indicates authenticity; and adjudicating the authenticity of the parallax image based on the degree of difference between spatial relationship of at least three target identifiers in the parallax image's captured two-dimensional image and the predetermined spatial relationship of at least three target identifiers.

A security element with a first volume hologram layer, which spans a coordinate system with the coordinate axes x and y perpendicular to each other in an unbent state of the security element, wherein a first volume hologram is introduced into the first volume hologram layer in at least one first area, wherein the first volume hologram is formed such that a first item of information is visible for an observer in a first observation situation in a first predefined bent state of the security element and is not visible in the first observation situation in the unbent state of the security element or vice versa.

Embodiments for rendering holographic content by one or more processors are described. A security level associated with holographic content is determined. A security clearance associated with a viewer within a proximity of a holographic display is determined. The holographic content is caused to be rendered in a first mode or a second mode by the holographic display based on the determined security level associated with the holographic content and the determined security clearance associated with the viewer.

Variable digital optical images may be fabricated using generic optical matrices. A generic optical matrix may have a substrate and a plurality of pixels corresponding to color and sub-pixels corresponding to non-color effects. The pixels may include first pixels corresponding to a first color and second pixels corresponding to a second color. The sub-pixels may include first sub-pixels corresponding to a first non-color effect and second sub-pixels corresponding to a second non-color effect. Individual ones of the pixels and sub-pixels of the generic optical matrix may be obliterated according to a negative while remaining pixels and/or sub-pixels may be preserved. The remaining pixels and sub-pixels may form an optical image corresponding to a base image. The optical image may be colored based on the remaining pixels. The optical image may exhibit non-color effects corresponding to the remaining sub-pixels. The optical image may comprise a hologram or a stereo image.