Abstract: A subwavelength grating displaying a colored image exhibiting a color corresponding to a grating period of a subwavelength grating in reflection directions including a specular reflection direction. A relief surface displaying a reflection image in monochromatic reflected light in reflection directions including a direction different from the specular reflection direction. An optical element has a first state in which neither a colored image nor a reflection image is displayed, a second state in which the colored image is mainly displayed, and a third state in which the reflection image is mainly displayed. A plane in which the optical element is disposed and a plane including a line of sight of an observer form an observation angle therebetween. The optical element is observed in any of the first, second and third states according to the observation angle.

Abstract: The present invention discloses a greeting card having at least two surfaces and at least three edges, the greeting card comprising an intrinsically valuable base material comprising titanium or a titanium alloy and one or more gemstones embedded on one or more of the surfaces or edges; wherein the greeting card has a thickness of between about 1.0 mm and about 1.5 mm, a first dimension between about 70 mm and about 90 mm, and a second dimension between about 50 mm and about 60 mm; and further wherein the greeting card depicts one or more of a letter, number, symbol, artistic design, image, or message.

Abstract: A security-enhanced document includes a substrate and variable indicia comprising ink having a signal. The variable indicia is of a specific type and is applied to the substrate using a specific application technique. At least one other printed portion, which is a back of the document, has background ink noise, and the type of ink of the back of the document is of the same type of ink applied to the substrate using the same application technique as the ink of the variable indicia. The document also includes a scratch-off-coating applied over the variable indicia. The document has a signal-to-noise ratio of the ink of the variable indicia relative to the background ink noise of the back of the document that is not appreciable, thereby making the variable indicia unreadable with reference to the back of the document when the scratch-off-coating remains intact.

Abstract: A security sheet including at least one paper substrate, at least one watermark produced in the paper substrate, the watermark having an exterior outline, at least one aperture of regular edge, produced by ablation of the paper substrate, and at least one security film that is at least partially superposed on the watermark and on the aperture. In the sheet, the at least one aperture lies inside the watermark, such as bounded by its exterior outline.

Abstract: An improved foldable clipboard having a first extended orientation and a second folded orientation. The improved foldable clipboard includes a top folding portion having a first top hinge arm and bracket and a second top hinge arm and bracket. A bottom folding portion includes a first bottom hinge and a second bottom hinge. The first top and bottom hinge arms and the second top and bottom hinge arms, respectively, connect via connectors to provide first and second hinges, respectively. First and second hinges adjoin the top folding portion and the bottom folding portion to form a flat, planar structure and a folded structure. A clip is operatively coupled to a front surface of the top folding portion.

Abstract: A blister pack includes a housing having a plurality of cavities and a cover sealed to the housing and enclosing the cavities. The cover includes a base layer, at least one security element, and a heat protection layer. The heat protection layer includes one of an amorphous polymer and a semi-crystalline polymer.

Abstract: The present invention relates to a book comprising a first outer cover having a substantially planar body defining a first aperture extending therethrough; a second outer cover having a substantially planar body defining a second aperture extending therethrough; and at least one inner element located between the first and second outer covers, the or each inner element having a substantially planar body defining an inner element aperture extending therethrough; wherein at least a portion of the first and second apertures and the or each inner element aperture are aligned with one another to define a receiving aperture extending through the book.

Abstract: The present invention relates in particular to a security element (1) for a valuable document, which comprises an array (R) of at least two contiguous or adjacent lines (2, 2?, 2?), at least one of these lines (2) being raised and having two opposing and at least partially inclined sides (20, 21) that each originate along one of the longitudinal and opposing edges (200, 210) of the line (2), characterised by the fact that the two opposing inclined flanks (20, 21) meet at a single, uninterrupted, sinuous junction area (22), that extends in the longitudinal direction of the line (2), the sides (20, 21) having no discontinuities or interruptions at least in the longitudinal direction.

Abstract: A children's book includes pages having text in a first orientation and pages in a second orientation, the first and second orientation related by being upside down relative to each other. As a child reads the book from a first end, the child encounters up a page with writing in both orientations, instructing him to turn the book upside down, close, and re-open the book. As the child re-opens the book that was turned upside down, the story continues from the opposite end of the book.

Abstract: An IR and/or UV machine-readable optical security device (e.g., micro-optic security thread) that is made up of at least one IR-absorbing component with a characteristic IR signature detectable at two or more IR-wavelengths, at least one UV-absorbing component with a characteristic UV signature detectable at two or more UV-wavelengths, at least one IR-absorbing component that absorbs IR light and emits light at a different invisible wavelength, at least one UV-absorbing component that absorbs UV light and emits light at a different invisible wavelength, or a combination thereof, is provided. The IR and UV machine-readable features do not interfere with the optical effects projected by the optical material.

Abstract: A method of manufacturing a document of a series identical documents in content except for a respective identifier which identifies each document within the series, each identifier having at least a first indicium, the or each indicium defining a boundary; the method having the steps of: providing a substrate; applying a first background print, defining part of the boundary of an indicium receiving area; applying the respective identifier on the substrate, such that the first indicium is provided in the indicium receiving area; the first background print and the respective identifier being applied such that when the document is viewed in at least one of transmission and reflection the juxtaposition of the first background print and the first indicium is such that a keyline extending around a portion of the boundary of the first indicium is defined between the first indicium and the boundary of the indicium receiving area.

Abstract: A security document, including: a polymer substrate; at least one print layer disposed on one or both sides of the polymer substrate; and a security feature including an image area embodied within the polymer substrate and at least partially covered by the at least one print layer, wherein the security feature is an optical security feature formed in the image area.

Abstract: A book workstation includes a left cover and a right cover, a center spine, and pages sequentially arranged and bound to the center spine. The workbook includes at least one of: a) a left-side underlay and a left-side overlay, each bound to the left-side cover via a left-side spine, or b) a right-side underlay and a right-side overlay, each bound to the right-side cover via a right-side spine. In an open position, the pages can be split into left and right stacks. Indicia on a top page of the left stack are equivalent to indicia on a top page of the right stack. Relative orientations of the indicia enable each of a pair of users to view the indicia on one of the pages at the same time. Each underlay and overlay can be interleaved between pages of one stack, or placed on the top page of that stack.

Abstract: A binding mechanism including a body portion having a flange opening extending therethrough. The body portion further includes or at least partially defines a body portion opening positioned adjacent a base end of the flange. The binding mechanism has a manually deflectable flange coupled to the body portion. At least part of the flange is insertable through the flange opening from a first side of the body portion to at least partially form a loop on the first side of the body portion. The at least part of the flange is alternatively insertable through the flange opening from a second side of the body portion opposite the first side to at least partially form a loop on the second side of the body portion. The body portion opening is configured to receive the flange therethrough to enable the flange to be positioned on either the first side or the second side of the body portion.

Abstract: A security element for securing security papers, value documents and other data carriers, includes a lens grid image with a lens grid of a plurality of micro lenses and a radiation-sensitive motif layer arranged at a distance from the lens grid. The radiation-sensitive motif layer includes, in one motif region, a multiplicity of transparency regions produced by the action of radiation. The radiation-sensitive motif layer has, at least in the motif region, a color partial layer and a contrast partial layer. The color partial layer includes chromophore effect pigments which appear to be colored against the background of the contrast partial layer and which appear to be transparent without a contrast layer.

Abstract: A credential with one or more security features is disclosed. The disclosed credential includes a windowed security feature. The windowed security feature is taught to include a mirror element positioned in proximity with a transparent window and a first photo-luminescent feature positioned relative to the transparent window and the mirror element such that the mirror element enhances a luminescence of the first photo-luminescent feature when viewed and illuminated through the transparent window.

Abstract: A two-sided articulating comprises a paper having a front and back sides, an adhesive pad, and a hinge. The adhesive, on one side of the pad, is configured for repeatedly and removably securing the pad to a flat portion of another object. The hinge, disposed between and connecting the paper and the adhesive pad, is configured to fold the paper 180° relative to the adhesive pad to change between the two configurations. In the first configuration, the front side of the paper is suitable to present a first message while the entire paper is coplanar with the adhesive pad. In the second configuration, the back side of the message means is suitable to present a second message while a majority of the back side of the paper is coplanar with the adhesive pad while no external force is applied to the writing portion of the two-sided articulated note.

Abstract: Object marking, and method for producing same, for optical authentication of an object, wherein at least one section of a material piece of a basic material is determined arbitrarily or randomly and the object marking is produced with the at least one section, and wherein the basic material of the material piece has a repeating security feature having optical properties dependent on the viewing angle, the dimensions of said security feature being larger than the dimensions of the section, more particularly larger than the dimensions of the object marking, such that each section is unique and has only a part of the security feature.

Abstract: A security-enhanced document including a substrate, variable indica applied to an area of a first side of the substrate, a scratch-off-coating applied over the variable indicia to maintain the variable indicia unreadable until the scratch-off-coating is removed by being scratched off, and digital imaging applied to an area of a reverse side of the substrate from the variable indicia, wherein the digital imaging applied to the area of the reverse side of the substrate includes the same materials as the variable indicia, is uniformly spread over the area of the reverse side of the substrate, and such that the digital imaging overlaps at least 50% of the variable indica applied to the area of the first side of the substrate, such that the variable indicia exhibits an insufficient signal-to-noise ratio relative to the signal-to-noise ratio of the digital imaging on the reverse side of the substrate so that the variable indicia cannot be discerned so long as the scratch-off-coating remains intact.

Abstract: A multilayered optical security device has a resonant waveguide grating (RWG) layer on an under layer having a hologram. The RWG layer has plural RWGs for generating one or more patterns. Each RWG has first and second RWG portions, with diffraction gratings of different grating periods, for light coupling-in and coupling-out, respectively. Using the RWGs minimizes interference to a holographic image generated by the under layer. This advantage is especially useful when the holographic image carries digital data such as in digital holographic encryption where an encrypted hologram is used in the under layer. The digital data may contain biometric information such as a fingerprint. In each RWG portion of an individual RWG, scattering elements in a grating are curved to thereby enhance an angular tolerance in azimuthal angle during observing the patterns by an observer while the individual RWG is still selective in elevation angle.