The disclosure provides apparatus and methods of manufacture pertaining to a layered artwork that provides the illusion of depth, or three-dimensional volume, and that shifts in color and spatial relationships as a viewer moves in relation to the artwork or as the light cast upon the artwork changes in intensity, angle, and/or color. The layered artwork may include a base image reproduced on a rigid substrate and at least one top image reproduced on one or more translucent substrates. The translucent substrates may be suspended above the rigid substrate such that a viewer sees both the base and top images when viewing the artwork. Other embodiments are also disclosed.

The disclosure provides apparatus and methods of manufacture pertaining to a layered artwork that provides the illusion of depth, or three-dimensional volume, and that shifts in color and spatial relationships as a viewer moves in relation to the artwork or as the light cast upon the artwork changes in intensity, angle, and/or color. The layered artwork may include a base image reproduced on a rigid substrate and at least one top image reproduced on one or more translucent substrates. The translucent substrates may be suspended above the rigid substrate such that a viewer sees both the base and top images when viewing the artwork. Other embodiments are also disclosed.

A system and method for varying hologram visibility is disclosed herein. Specifically the system can comprise a shield. The shield can comprise a first layer and a second layer. The first layer can comprise a photochromic material having a dark state and a light state. The second layer can comprise a hologram that is less visible the first layer is in the light state. The method can comprise attaching a second layer to a first layer. The first layer can comprise a photochromic material having a dark state and a light state. The second layer can comprise a hologram. The hologram can be less visible when the first layer is in the light state than when the first layer is in the dark state.

A system and method for varying hologram visibility is disclosed herein. Specifically the system can comprise a shield. The shield can comprise a first layer and a second layer. The first layer can comprise a photochromic material having a dark state and a light state. The second layer can comprise a hologram that is less visible the first layer is in the light state. The method can comprise attaching a second layer to a first layer. The first layer can comprise a photochromic material having a dark state and a light state. The second layer can comprise a hologram. The hologram can be less visible when the first layer is in the light state than when the first layer is in the dark state.

An integral image device (1) comprises an array (20) of focusing micro-lenses (22), optionally a reflecting layer (40) and an image fragment plane (30). The reflecting layer is positioned on a same side of the array of focusing micro-lenses as a focal plane of the focusing micro-lenses as such. The reflecting layer is arranged for reflecting at least a part of light incident on a surface (49) of the reflecting layer facing the array of focusing micro-lenses. The image fragment plane has image fragment structures (32). The array of focusing micro-lenses is positioned between the reflecting layer and the image fragment plane. The image fragment plane is arranged to, when being viewed refracted through the array of focusing micro-lenses towards the reflecting layer, reflected by the reflecting layer and refracted back through the array of focusing micro-lenses from the reflecting layer, give rise to an integral image.

An integral image device (1) comprises an array (20) of focusing micro-lenses (22), optionally a reflecting layer (40) and an image fragment plane (30). The reflecting layer is positioned on a same side of the array of focusing micro-lenses as a focal plane of the focusing micro-lenses as such. The reflecting layer is arranged for reflecting at least a part of light incident on a surface (49) of the reflecting layer facing the array of focusing micro-lenses. The image fragment plane has image fragment structures (32). The array of focusing micro-lenses is positioned between the reflecting layer and the image fragment plane. The image fragment plane is arranged to, when being viewed refracted through the array of focusing micro-lenses towards the reflecting layer, reflected by the reflecting layer and refracted back through the array of focusing micro-lenses from the reflecting layer, give rise to an integral image.

In a printed article, pigment flakes are magnetically aligned so as to form curved patterns in a plurality of cross-sections normal a continuous imaginary line, wherein radii of the curved patterns increase along the imaginary line from the first point to the second point. When light is incident upon the aligned pigment flakes from a light source, light reflected from the aligned pattern forms a bright image which appears to gradually change its shape and move from one side of the continuous imaginary line to another side of the continuous imaginary line when the substrate is tilted with respect to the light source.

In a printed article, pigment flakes are magnetically aligned so as to form curved patterns in a plurality of cross-sections normal a continuous imaginary line, wherein radii of the curved patterns increase along the imaginary line from the first point to the second point. When light is incident upon the aligned pigment flakes from a light source, light reflected from the aligned pattern forms a bright image which appears to gradually change its shape and move from one side of the continuous imaginary line to another side of the continuous imaginary line when the substrate is tilted with respect to the light source.

A method, system and printing device for rendering digital color changing inks, can involve configuring a digital ink to appear as one color on a digital screen at one angle and as a different color at a different angle, and rendering the digital ink in a digital document. In an embodiment, a black geometric shape can be created, which can turn off RGB pixels. Single-color lines can be then added to the black geometric shape. The geometric shape can be viewed at different angles to determine one or more working patches. One or more working patches can be then added to the digital document. New Digital color changing inks can be created by taking advantage of the RGB output verses angle curves. The digital inks can appear as one color on a digital screen at one angle and as a different color at a different angle.

In a printed article, pigment flakes are magnetically aligned so as to form curved patterns in a plurality of cross-sections normal a continuous imaginary line, wherein radii of the curved patterns increase along the imaginary line from the first point to the second point. When light is incident upon the aligned pigment flakes from a light source, light reflected from the aligned pattern forms a bright image which appears to gradually change its shape and move from one side of the continuous imaginary line to another side of the continuous imaginary line when the substrate is tilted with respect to the light source.