Patent ID: 7688474

Claim:
A moiré-based auto-stereoscopic rendered image, comprising: a substantially transparent substrate having a first side and a second side; a first side applied marking material having a first periodic structure at a first frequency, as applied to and placed on the first side of the substantially transparent substrate; and, a second side applied marking material as applied to and placed on the second side of the substantially transparent substrate, the second side applied marking material further comprising a first contiguous partition and a second contiguous partition the second contiguous partition being distinct from the first contiguous partition, the first contiguous partition being filled with a second periodic structure at a second frequency, the second periodic structure being parallel to the first periodic structure and the second frequency being related to but some delta away from the first frequency, and the second contiguous partition being filled with a third periodic structure at a third frequency, the third periodic structure being parallel to the first periodic structure and the second periodic structure, and the third frequency being related to but some delta away from the first frequency and the second frequency, such that when the substantially transparent substrate is viewed from either side a moiré-based auto-stereoscopic rendered image is evident with the first partition and the second partition each appearing on different spatial planes.