A security device includes an array of lenses and a plurality of first and second segments disposed under the array of lenses. At a first viewing angle, the array of lenses presents a first image for viewing without presenting the second image for viewing, and at a second viewing angle different from the first viewing angle, the array of lenses presents for viewing the second image without presenting the first image for viewing. At least one first or second segment can include one or more microstructures or one or more nanostructures configured to produce one or more colors for the first or second image.

Provided are transaction cards including an infinity mirror. In some approaches, a transaction card may include a body comprising a first reflective layer and a second reflective layer, and a light source between the first reflective layer and the second reflective layer.

Disclosed herein is an optical device having a light source, a viscoelastic lightguide and a retroreflective film suitable for retroreflecting light. Light from the light source enters the viscoelastic lightguide and is transported within the lightguide by total internal reflection. The transported light is extracted from the lightguide and retroreflected at a structured surface of the retroreflective film. The optical device may have a front lit or a back lit configuration depending on the relative positioning of the lightguide and the retroreflective film. The retroreflective film may include prismatic retroreflective sheeting, holographic film or film structured with diffraction gratings. The optical device may be used, for example, as a sign or marking, a license plate assembly, a tail light assembly for vehicles, a security laminate for protection of documents against tampering, or an illumination device.

A metal card includes: a frame metal body formed of a metal plate having a card-sized shape and thickness, the frame metal body including a first insertion space on an upper surface, a second insertion space on a lower surface, and a first chip insertion hole; a glass body formed of a sheet made of glass material and inserted into the first insertion space; a 3D pattern printed layer comprising a printed layer, a UV 3D pattern layer, a deposition layer formed of multiple layers, and a light-blocking printed layer, the 3D pattern printed layer being disposed between the glass body and the frame metal body; a rear metal body formed of a metal sheet and inserted into the second insertion space; an antenna module mounted in an antenna insertion space of the rear metal body; and an IC module for a card.

A metal card includes a frame metal body formed of a metal plate having a card size and being provided with an glass body insertion space and a first chip insertion hole; a glass body inserted into the glass body insertion space and being formed of a sheet made of a glass material; a 3D pattern printed layer disposed between the glass body and the frame metal body, the 3D pattern printed layer including a printed layer, a UV 3D pattern layer, a deposition layer and a light-blocking layer; an EMI absorption sheet disposed on a rear surface of the frame metal body; an antenna inlay sheet having an antenna mounted on a surface thereof and disposed on a rear surface of the EMI absorption sheet; a rear printing sheet disposed on a rear surface of the antenna inlay sheet; and an IC module for a card.

A decoration element including: a color developing layer including a light reflective layer and a light absorbing layer provided on the light reflective layer; and a substrate provided on a surface of the color developing layer. The substrate comprises a pattern layer, and the light absorbing layer comprises an aluminum oxynitride (Al.sub.aO.sub.bN.sub.c).

The invention relates to a method for producing a semi-transparent motor vehicle design element (3), comprising the following steps: A providing a dimensionally stable, at least partially light-permeable substrate (1) which is heat-resistant for a temperature of at least 60 C., the substrate (1) having a front side (1a) and a rear side (1b), B introducing the substrate (1) into a vacuum chamber (2) and applying a first metallic semi-transparent layer (L1) by means of a PVD process to the substrate (1) according to step a) which is situated in the vacuum chamber (2), and C applying a light-impermeable cover layer (LD) to the front or rear side (1a, 1b) of the substrate (1), the light-impermeable cover layer (LD) containing at least one light-permeable opening (8) for reproducing at least one graphical symbol (SYM), steps B and C being carried out such that light (LSQ) passing through the at least one opening (8) in the light-impermeable cover layer (LD) from the rear side (1b) towards the front side (1a) of the substrate (1) is incident on the first metallic semi-transparent layer (L1) and at least partially passes outwards through the first metallic semi-transparent layer (L1) in order to project the at least one graphical symbol (SYM) represented by the at least one opening (8).

A decorative member has a first surface displaying a design and a second surface opposite the first surface. The decorative member includes a decorative layer and a light absorber in this order from the first surface toward the second surface. The decorative layer forms the design. The light absorber is disposed in a predetermined pattern. The light absorber overlays the decorative layer. The decorative layer transmits at least a portion of light incident on each position. The decorative layer includes a first layer including a colorant expressing a cyan-based color, a second layer including a colorant expressing a magenta-based color, and a third layer including a colorant expressing a yellow-based color. The first layer, the second layer, and the third layer overlay one another in a section of the decorative layer.

A decorative member has a first surface displaying a design and a second surface opposite the first surface. The decorative member includes a decorative layer and a light absorber in this order from the first surface toward the second surface. The decorative layer forms the design. The light absorber is disposed in a predetermined pattern. The light absorber overlays the decorative layer. The decorative layer transmits at least a portion of light incident on each position. The decorative layer includes a first layer including a colorant expressing a cyan-based color, a second layer including a colorant expressing a magenta-based color, and a third layer including a colorant expressing a yellow-based color. The first layer, the second layer, and the third layer overlay one another in a section of the decorative layer.

A decorative component includes a plurality of metal finish layers deposited over a substrate and a plurality of sub-layers. The outermost metal finish layer is selectively deposited or removed to define one or more recesses to create different appearances of the component. The outer metal layer may undergo laser ablation to remove at least a portion of the outer layer while still exposing the outer layer in the area of removed material. The recess may extend fully through the outer layer to expose the underlying metal finish layer, and/or the recess may have a sloped bottom surface to define a gradient appearance. The outer layer may be applied over a mask that is applied to the underlying layer, such that the outer layer is selectively applied. The outer layer may be removed to expose the underlying finish layer without exposing a nickel sublayer and without requiring a top coat.