Abstract: An anti-counterfeit latent image formation object for bills, bank notes, urity papers, credit cards, passports, valuable printing matters, and the like comprising a main body, a plurality projections and recesses means formed on the main body in such a manner as to exhibit various kinds of patterns, in which the various kinds of patterns comprise straight image lines forming a pattern, a relief pattern, or a combination of the pattern and the relief pattern; a plurality of straight lines printed on an upper surface of the projections and recesses at predetermined spaces, the straight lines being printed in different colors from that of the main body itself. The patterns consisting of letters, figures, etc. can be visually recognized only when the anti-counterfeit latent image formation object is viewed from an adequate angle. A method for making the anti-counterfeit latent image formation object is also disclosed.

Abstract: The present invention provides a two-component infrared reflecting film which reflects light in the infrared region of the spectrum while suppressing second, third and fourth order reflections in the visible spectrum. The film comprises alternating layers of first (A) and second (B) diverse polymeric materials having a six layer alternating repeat unit with relative optical thicknesses of about .778A.111B.111A.778B.111A.111B. The polymeric materials differ from each other in refractive index by at least about 0.03.

Abstract: A method and structure for enhancing electromagnetic barrier properties including a substrate, a metallic layer deposited upon the substrate by vacuum metalization, and a plurality of sets of patterns microembossed upon the surface of the metallic layer for increasing the barrier properties of the structure. The plurality of sets of microembossed patterns each have a line density between about 100 and 50,000 lines per square centimeter.

Abstract: A multilayered reflective polymeric body of alternating layers of polymers wherein at least a portion of the layers are in a folded-over relationship is provided along with a coextrusion apparatus and method of preparing the multilayer polymeric body. The reflective polymeric body includes at least first and second diverse polymeric materials having a sufficient number of alternating layers of the first and second polymeric materials such that a portion of the light incident on the body is reflected. The first and second polymeric materials differ from each other in refractive index by at least about 0.03. The reflective body is thermoformable and may be fabricated into wall panels, dishware, decorative trims, and the like, and may also find use in security applications such as credit cards, credit card emblems, or on currency.

Abstract: A polymeric multilayered film which reflects wavelengths of light in the infrared region of the spectrum while being substantially transparent to wavelengths of light in the visible spectrum without the effects of visibly perceived iridescent color is provided. The polymeric multilayered infrared reflecting film comprises at least two diverse, substantially transparent polymeric materials, with the layers having an optical thickness of between 0.09 .mu.m and 0.45 .mu.m and the polymeric materials having a different index of refraction such that light is reflected in the infrared portion of the spectrum. A color masking film is associated with the polymeric film which reflects light substantially uniformly over the visible portion of the spectrum to eliminate perceived iridescent color.

Abstract: A thermochromic laminate member comprises a thin transparent iridescent film laminated on a thermochromic layer 2, and exhibits rainbow-color pattern. The thermochromic layer shows reversible change between a first colored state and a second colored state by a temperature change.

Abstract: A vertically adjustable composite motor vehicle side glazing, particularly a door window glazing, is made from composite glass including two 1.5 to 3.5 mm thick thermally tempered individual glazings with a thermoplastic intermediate layer. Each individual glazing has in the marginal area tensile stresses in the core, which in the case of a glazing thickness of 2 mm amount to 54 to 76 MN/m.sup.2 and for a glazing thickness of 3 mm amount to 46.7 to 71.2 MN/m.sup.2. In the central zone within the marginal area the individual glazings have tensile stresses in the core, which in the case of a glazing thickness of 2 mm amount to 38 to 67 MN/m.sup.2, while for a glazing thickness of 3 mm amount to 33 to 60 MN/m.sup.2. Such composite glazings have high strength in the marginal area and a low strength in the central zone. Therefore they have excellent characteristics both from the static standpoint and from that of accident safety.

Abstract: A microstructure-bearing composite plastic article can be superior, both in microstructure and in physical properties, when it is a composite of a tough, flexible substrate, at a surface of which is microstructure formed of a cured oligomeric resin having hard segments and soft segments, which cured resin is substantially confined to the microstructure portion of the composite. Such a composite plastic article can be made by depositing an uncured oligomeric resin composition onto a master negative molding surface in an amount barely sufficient to fill the cavities of the master, filling the cavities by moving a bead of the composition between a substrate and the master, and curing the deposited composition by ultraviolet radiation while keeping the temperature during curing to not more than 50.degree. C. above the typical use temperature of the finished composite plastic article.

Abstract: A method of creating apparent motion on a two-dimensional surface, the surface being illumination responsive to a directed moving reference of light source. The method comprising the steps of devising on a tracing sheet at least one pattern of apparent motion to be created on the surface. Dividing the pattern into a plurality of discrete and spatially related zones. Next a direction of apparent motion to be created within each zone is determined. The pattern and zones thereof are then transferred onto the surface of a light responsive deformable material. On the surface is found a plurality of grooves corresponding to each zone. The grooves in the direction of apparent motion are progressively angled relative to the directed moving reference of light source from about 90 degrees through about 180 degrees.

Abstract: The three-dimensional picture includes a transparent substrate carrying, on a top surface, periodically spaced, non-transparent lines of a predetermined width and carrying, on a bottom surface, an underlying picture formed by a lenticular process. The underlying picture has a plurality of lenticular planes and the non-transaprent lines are positioned substantially parallel to the lenticular planes. The underlying picture could have a multiplicity of vertically spaced, multiple images of an object. If the three dimensional picture is translucent to light, it can be mounted on a light box. When the substrate is flexible, the three dimensional picture can be incorporated into magazines or other promotional materials.

Abstract: A passive, reusable visual amusement or warning device includes a handle and a number of light diffracting strips bearing an embossed holographically generated diffraction pattern. The diffraction pattern in the foil is produced in a planar format, and the strips bearing the pattern are displayed and viewed in a curved format. Ambient light striking the strips is diffracted to produce a dynamic, kaleidoscopic readily noticed display of brilliant colors.

Abstract: A new art form providing a plurality of optical images and illusions by the novel coaction of at least two diverse line and curve patterns disposed in spaced generally parallel relationship to each other, preferably with a frame.

Abstract: An artificial fingernail or toenail which can provide the illusion of length, movement, depth and even three-dimensionalism through the use of a moire pattern.

Abstract: A device for producing variable moire patterns including a housing maintaining transparent sheets in face-to-face relationship, said sheets movable relative to one another and each carrying a pattern of lines.

Abstract: A security element for authenticating bank notes, credit cards, security passes and the like is disclosed. The security element incorporates a reflective-type diffraction grating, which grating comprises a continuous layer of reflecting material on which is deposited a layer of dielectric material. Non-continuous reflecting layer portions are embedded in the dielectric material. It is practically impossible to lay bare the diffraction grating without destroying it.

Abstract: A document includes a substrate which has an outer surface and defines a plane, and a coordinate system which is defined with respect to the plane. A diffraction-optical authenticating element covers at least part of the outer surface, and generates at least one color pattern constituting a visually testable feature which verifies the authenticity of the document. The diffraction-optical authenticating element provides a color pattern moving at a predetermined velocity along a predetermined track when the document is illuminated from a first direction and viewed from a second direction, as defined with respect to the coordinate system, upon the document being rotated within the plane along a prearranged sense of rotation, and at a prearranged velocity.

Abstract: A method of making a high quality three-dimensional photograph is disclosed. The method utilizes a camera with a film mount therein, a rastor, a film, a separator for keeping the line rastor separate from the film, and a vacuum generating device for maintaining a vacuum in the vicinity of the separator thereby bringing the film into intimate contact with the separator and maintaining the intimate contact through successive exposures and movements of the film and line rastor. After repeated exposure of the film in various positions with respect to the subject being photographed, the film and rastor are laminated to opposing sides of the separator and the resulting photograph is viewed from the rastor-carrying side of the photograph by means of a light source and diffusion screen on the film-carrying side of the photograph.

Abstract: A method for producing multi-colored articles using injection molding results in an elongated article having a pattern of adjacent areas formed of discrete, separately molded materials, of different colors. Articles produced by this method are sturdy, safe and visually attractive, making them especially suitable for use as handles for personal grooming brushes and similar products.

Abstract: A method of making a high quality three-dimensional photograph is disclosed. The method utilizes a camera with a film mount therein, a rastor, a film, a separator for keeping the line rastor separate from the film, and a vacuum generating device for maintaining a vacuum in the vicinity of the separator thereby bringing the film into intimate contact with the separator and maintaining the intimate contact through successive exposures and movements of the film and line rastor. After repeated exposure of the film in various positions with respect to the subject being photographed, the film and rastor are laminated to opposing sides of the separator and the resulting photograph is viewed from the rastor-carrying side of the photograph by means of a light source and diffusion screen on the film-carrying side of the photograph.

Abstract: A double engraved identification card has a first planar member with a first engraved image in one of its major planar surfaces and a second planar member with a second engraved image in one of its major planar surfaces. The first and second engraved images are aligned in coincidence and the first and second planar members affixed to one another so as to form a single composite image. A slot is provided between the first and second planar members between the first and second engraved images. The slot has an edge access opening to selectively receive an opaque card through the edge opening into the slot region and prevent simultaneous observation of both the first and second engraved images.

Abstract: An article of manufacture, including a substrate provided on its top surface with an integrally formed, raised, peripheral edge providing at least a portion of a mold; and a body of substantially transparent composition received within said mold and adhered to the substrate, the composition formed into a dome shape to provide a magnifying lens effect to the top surface. A method of manufacturing an article of manufacture, including the steps of: providing a substrate on its top surface with an integrally formed, raised, peripheral edge providing at least a portion of a mold; depositing an amount of substantially transparent composition in substantially liquid form into the mold and allowing the composition to flow outwardly to the peripheral edge to form a positive meniscus; and curing the composition to harden the composition into a dome shape to provide a magnifying lens effect to the top surface.

Abstract: A multilayer coextruded light-reflecting film is improved by utilizing a mixture of a polyolefin and ethylenevinyl acetate as one of the diverse resinous material which form the plurality of layers.

Abstract: A geometric image comprising both a nonreflective material and a metalized plastic film capable of dispersing visible light into its component colors, which colors may change relative to the angle of the light being dispersed and reflected back to the viewer.

Abstract: An imprint of inked intaglio pattern elements such as lines on a document of value or the like, including background portions and readily recognizable image portions each formed by pattern elements of the imprint. The pattern elements forming the image portions differ in orientation or depth from pattern elements forming the background portion to provide variation in contrast between image and background with change in angle of view of the document, the pattern elements being so arranged that the image blends visually with the background from one angle of view but appears as a readily recognizable symbol in clear contrast to the background from another angle of view.