| 摘要 |
The present invention relates to a label for identifying a genuine article and, more specifically, the label comprises: an identification mark forming part comprising a three-dimensional lens layer formed by including a lenticular lens having a plurality of semicircumferential convex lenses arranged in parallel or a micro-lens having a plurality of semicircular convex lenses arranged in succession, a focal distance layer provided on the lower part of the three-dimensional lens layer, and an image forming layer provided on the lower part of the focal distance layer; and a coupling member for allowing the identification mark forming part to be coupled with a corresponding article, wherein the image forming layer includes an assembly in which a plurality of nanostructures formed to protrude at intervals of 50-200 nanometers and heights are regularly and uniformly arranged, and a gap between the nanostructures and the focal distance layer is formed from a medium having a different refractive index from the nanostructures and the focal distance layer. According to a three-dimensional lens sheet provided in the present invention, for expressing a hidden image by comprising the plurality of nanostructures, the sheet comprises: an identification mark forming part comprising a three-dimensional lens layer, a focal distance layer, and an image forming layer; and a coupling member, wherein the image forming layer of the identification mark forming part includes an assembly in which a plurality of nanostructures formed to protrude at intervals of 50-200 nanometers and heights are regularly and uniformly arranged, and a gap between the nanostructures and the focal distance layer is formed from a medium having a different refractive index from the nanostructures and the focal distance layer such that it is possible to implement an image of a desired color and shape by only a structural design without using dyes or pigments, a color and shape are capable of being expressed up to nanoscale of 10 micron or less on one board without being overlapped, and in terms of color expression, both monotone and technicolor can be expressed according to a structural design such that an elaborate label is capable of being produced, thereby solving the problem of manufacturing label reproductions. Furthermore, according to the present invention, the label comprises: a hidden image forming part for forming nanostructures such that images are shown only at predetermined viewing angles and in predetermined viewing focal distances; and a normal image forming part for forming the nanostructures such that images are shown at other angles and in other focal distances except for the predetermined angles and the predetermined viewing focal distances of the hidden image forming part, wherein the hidden image forming part is formed in order to express at least one selected from the group consisting of text, symbols, and patterns for identifying a corresponding article such that the invention can be used as a decoration having various images in a normal view since an identification mark is shown only in a specific view. |
