A security document with unidirectional visual illumination is disclosed. A security feature is positioned within the document and not visible in normal ambient lighting conditions but becomes visible under specialized lighting conditions, for example in the presence of ultraviolet light. The security feature is constructible such that it is visible only from a single side of the security document, with the side being predeterminable regardless of the orientation of the specialized light.

A method for manufacturing laminated glass articles includes the steps of inkjet printing an image with one or more inkjet inks on a first glass sheet; jetting and at least partially curing a curable sealing agent on three edges of the first glass sheet on the side for the inkjet printed image; aligning a second glass sheet with the first glass sheet on the side of the first glass sheet carrying the at least partially cured sealing agent and the inkjet printed image; applying a liquid curable adhesive resin composition into an interspace between the first and second glass sheets; and curing the liquid curable adhesive resin composition until a solid adhesive layer is obtained.

Disclosed is a decorative object including an upper glass, a lower glass, a recessed pattern formed in the lower glass and facing the upper glass, a liquid filling the recessed pattern, the refractive index of the liquid being equal to that of the lower glass or differing from that of the lower glass by at most 10%, and solid elements which can move in the liquid.

A decorative panel has a first layer, a second layer, and a third layer. The first layer may be transparent, the second layer is fully or partially reflective, and the third layer is partially reflective or transparent. A cavity having an opening in the shape of a design is formed within a portion of the second layer. The opening is configured to allow light to enter the decorative panel through the second layer. The light entering the decorative panel will be outputted by the third layer in a shape substantially similar to the design.

An electronic device comprises a cover and an outer casing. The cover includes a first light transmitting substrate layer and a first pattern layer. The first pattern layer is attached to bottom of the first light transmitting substrate layer and includes a plurality of first microstructure patterns. The outer casing is mounted on the cover. The outer casing includes a second light transmitting protection layer and a second pattern layer. The second light transmitting protection layer includes a first surface facing the cover. The second pattern layer is configured at the first surface of the second light transmitting protection layer. The second pattern layer includes a plurality of second microstructure patterns. The first pattern layer and the second pattern layer are superimposed to form a virtual pattern image.

A method of making a multi-layered film includes depositing thin film layers onto a first side of a double-sided transparent substrate. The thin film layers are transparent, and two adjacent layers of said plurality of thin film layers have different refractive indices. One or more absorbers are deposited at an interface formed between two of the thin film layers that are adjacent to one another, or formed by the first side of the substrate and one of the thin film layers. The absorbers absorb selected wavelengths of incident light and reflect part of the incident light after inducing a phase shift. The location of the interface is selected to provide desired wavelengths of absorbed and reflected light. The multi-layered film has a first appearance when viewed from the first side of the substrate and a second appearance when viewed from the second side of the substrate.

A method for manufacturing a design object from a plurality of glass sheets. The method comprises cleaning at least one surface of a glass sheet, mixing a dye in a solvent to form a coloured mixture, mixing a hardener into the coloured mixture and filtering the coloured mixture. The filtered coloured mixture is mixed with an epoxy resin to form a coloured resin and the coloured resin is applied in one direction to the cleaned at least one surface of the glass sheet and allowed to dry.

A method of cold forming a glass laminate structure. The method includes assembling a multi-layer structure having two buffer plates and a glass laminate structure intermediate the two buffer plates, wherein one or both of the two buffer plates includes a pattern formed thereon or therein or the multi-layer structure includes non-deformable materials forming a pattern. The method further includes cold forming the glass laminate structure in the autoclave by heating the assembled structure to a temperature about 5 to 10 degrees above the softening point of the polymer interlayer for a predetermined period of time at a predetermined pressure. After processing the glass laminate structure can be removed from between the buffer plates wherein the pattern formed in or on the one or both buffer plates or non-deformable materials has been transferred to the glass laminate structure as a function of variances of thicknesses in the glass laminate structure.

Disclosed is a decorative element (1) comprising two substantially parallel panels (2, 3) which are arranged at a distance from each other and at least one of which (2, 3) is at least partially permeable to visible light, and a plurality of precious stones (6) that are disposed between the panels (2, 3). A device (4) for fixing the precious stones (6) in a specific position is located between the panels (2, 3). Said position-fixing device (4) includes compartments (5), inside each of which exactly one precious stone (6) is disposed. At least one of the panels (2, 3) directly adjoins the compartments (5).

A kit for making a simulated stained glass article, having a light-transmissive molded plastic substrate with an array of ridges on one major surface, laterally defining a pattern of upwardly open spaces, and a set of light-transmissive molded plastic colored stickers that are respectively peripherally shaped to fit conformingly into the spaces of the pattern. Side walls of the ridges are beveled at an angle sufficient to enable release of the substrate from a mold but are steep enough to facilitate precise placement of the stickers in the spaces and to minimize transmission of light around the edges of the stickers. In an article made from the kit, the stickers and ridges simulate the glass pieces and lead cames of a conventional stained glass window.