| 摘要 |
This invention relates to a device consisting of at least two layers of transparent or translucent rigid material fixed substantially co-planar with a hollow separation between them and with at least one having a pattern, image, or design on it. Light passing through one layer will hit the pattern, image, or design and transfer a shadow onto the second layer, creating the illusion of a three-dimensional (3D) or multi-dimensional pattern, image, or design on the interior of the device. A third opaque layer or backdrop may be added to increase the depth of the visual effect, or the effect may be decreased by using a solid layer without any texture to the pattern.
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